what is the weight of oxygen in 50gwater​

Answers

Answer 1

To compute the required mass of the element to form the given molecules, we'll use the general formula shown below:

{eq}\displaystyle m_1=\frac{M_1}{M_2}\times m_2 {/eq}, where,

{eq}M_1 {/eq} is the molecular weight of the element.

{eq}M_2 {/eq} is the molecular weight of the given molecule.

{eq}m_2 {/eq} is the mass of the given molecule.

Answer and Explanation:

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The given value is:

The value of the mass of the water molecule is {eq}m_2=\rm 50\ grams {/eq}.

The chemical reaction for the formation of water...

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Formula for Mass: Definition & Examples

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Chapter 28 / Lesson 42

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What is mass? Learn the mass definition and how to find the mass of an object using the mass formula. See common mass characteristics and properties.

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Related Questions

neutrons have a _______ charge​

Answers

Answer:

neutrons have a neutral charge​

Explanation:

What make them neutral. It means why do we say that they are neutral. The American polymath benjamin Franklin named the charges as positive and the negative. He did this because when one kind of charges are combined they increase their effect but when the same kind was mixed with the other charges the charges used to disapear or loss their strength . so it was clear that there are two types of charges and have got a methametical relation between them . He called them posive and negative charges analogous to positive and negative numbers because when negative numbers are added with the negative number we get a larger negative numbers and vice versa. So it means that every object that we can observe contain charge but of both kinds in same quantity so we call them neutral . so answer to that question would be that it has charge because charge is the fundamental property of particles but it has both +ve and -ve charges equal in magnitude so not any net charge is there on neutron it is in equilibrium.

As one mass increases, what happens to the gravitational force.

Answers

Answer:

Gravitational force is directly promotional to the mass

of both interacting objects.

Explanation:

More massive objects will attract each other with

a greater gravitional force. So as the mass of the

either objects increases the force of gravitational

attraction between them also increases.

A chemist is given a 3.00M solution of KBr and needs to measure out 0.733 moles of this solution. How many mL of the 3.00M KBr solution would the chemist need

Answers

In order to measure 0.733 moles of KBr from a 3.00 M solution, the chemist needs 244 mL of solution.

What is molarity?

Molarity (M) is a unit of concentration of solutions, and it is defined as the moles of a solute per liters of a solution.

Step 1: Calculate the liters of solution required.

A chemist has a 3.00 M KBr solution and wants to measure 0.733 moles of KBr. The required volume is:

0.733 mol × (1 L/3.00 mol) = 0.244 L

Step 2: Convert 0.244 L to mL.

We will use the conversion factor 1 L = 1000 mL.

0.244 L × (1000 mL/1 L) = 244 mL

In order to measure 0.733 moles of KBr from a 3.00 M solution, the chemist needs 244 mL of solution.

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In your own words please

Answers

Answer:

Sl reproduction occurs when living organisms combine genetic information from two different types.

Explanation:

Which pair of compounds has the same empirical formula? c3h8 and c3h c2h2 and c2h c4h10 and c6h c4h10 and c2h5.

Answers

Answer:

The correct answer is the final pair: C4H10 and C2H5

Explanation:

Took the test and it was right. :)

[tex]C_4H_{10}[/tex] and [tex]C_2H_5[/tex] pair of compounds have the same empirical formula.

What is an empirical formula?

A chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule [tex]CH_2O[/tex] is the empirical formula for glucose.

An empirical formula is the chemical formula of a compound that gives the proportions (ratios) of the elements present in the compound but not the actual numbers or arrangement of atoms.

This would be the lowest whole number ratio of the elements in the compound.

Hence, option D is correct.

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How to clean a nose piercing with antibacterial soap?.

Answers

Cleaning the nose piercing with a few simple steps will help prevent pre-existing conditions like infections, allergic reactions or skin damage. Performing regular maintenance will keep your piercing cleaner, more comfortable and easier to clean in the future.(Remember: If you have any problems I recommend visiting a doctor at your earliest convenience!) Antibacterial soap is great at reducing inflammation and clearing up infections. You should soak your nose in it regularly and use a clean cloth to gently wash away any particles that may have fallen into the septum.

Can energy be created

Answers

Explanation:

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside

Answer:

No energy cannot be created nor destroyed

Explanation:

Students measure the weight of some baking soda, a solid. They also measure the weight of some vinegar, a liquid. They mix the substances together and many bubbles appear on the surface of the new liquid. They measure the weight of this new liquid and it is less than the sum of the weights of the baking soda and vinegar before mixing. Why is the weight of the new liquid less than the sum of the weights before mixing? Answer options with 4 options A. because the solid melted B. because the solid dissolved C. because a gas formed and escaped D. because a liquid weighs less than a solid

Answers

Answer:

the answer is b because the solid dissolved

Explanation:

How many moles is 8.35x 10^25

Answers

Answer:

138.65501 moles is your answer

Here is your answer, 138.65 moles

Taylor grows corn on his farm. How does farming affect the amount of fresh water available?

Answers

Answer:

On average, agriculture accounts for 70 percent of global freshwater withdrawals. In the last 30 years, food production has increased by more than 100 percent. FAO estimates that about 60 percent more food will be needed by 2050 to meet the food requirements of a growing global population.

Explanation:

Because i learnt this before and i aced a test about it dont worry

Which is the load
D.
A.
B.
C.
E.​

Answers

Answer:

A.

Explanation:

In the case of a seesaw, the object at the top is the effort and the object at the bottom is the load.

The chemical symbol O=O means ________.

a. the atoms are double bonded
b. zero equals zeroc
c. both atoms are bonded and have zero electrons in the outer orbit
d. this is an ionic bond with two shared electrons

Answers

Answer is A and they would do a covalent bond

Considering the definition of covalent bond, the correct answer is option a. the chemical symbol O=O means the atoms are double bonded.

Definition of covalent bond

The chemical bond in which atoms share electrons to create molecules is known as a covalent bond and is established between non-metallic elements. These elements tend to gain electrons to acquire the stability of the electronic structure of noble gases and have a lot of valence electrons at their outermost level. The shared electron pair is common to the two atoms and holds them together.

Depending on the number of pairs of electrons shared between the atoms that form the bond, covalent bonds will be single, double, or triple. Two atoms form a single covalent bond when they share one pair of electrons, a double bond when they share two electron pairs, and a triple bond when they share three electron pairs.

Correct answer

Taking into account the definition of covalent bond, the chemical symbol O=O means the atoms are double bonded (option a.)

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why is the electron configuration for sulfur [ne] 3s² 3pâ´

Answers

BEcause

Explanation:

Sulfur (or sulphur in BrE) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic.

Which term names the container that holds the gear box and generator in a wind power system?.

Answers

Answer:

Nacelle. The nacelle sits atop the tower and contains the gearbox, low- and high-speed shafts, generator, and brake.

Explanation:

What gives an atom mass?

a. protons & electrons in the cloud
b. protons & neutrons in the nucleus
c. protons & electrons in the nucleus
d. electrons in the cloud

Answers

b. Proton and neutrons in nucleus. Electron is not located at nucleus.

How many molecules of oxygen are there in 1.00 dm3 of oxygen at standard pressure and a temperature of 273 K. Give your answer to three significant digits.​

Answers

Pressure=p=1atmTemperature=T=273K.V=1dm^3=1L

we need no of moles

[tex]\\ \tt\hookrightarrow PV=nRT[/tex]

[tex]\\ \tt\hookrightarrow n=\dfrac{PV}{RT}[/tex]

[tex]\\ \tt\hookrightarrow n=\dfrac{1}{273(8.314)}[/tex]

[tex]\\ \tt\hookrightarrow n=1/2269.7=0.0004mol[/tex]

No of molecules=No of moles×Avagadro no

[tex]\\ \tt\hookrightarrow 0.0004(6.023\times 10^{23})[/tex]

[tex]\\ \tt\hookrightarrow 2.4\times 10^{20} molecules [/tex]

Hi there!

Note: 1 mole of a any gas at ST and Pressure (273 K and 1 atm) occupies a volume of 22.4 dm^3

=> x mole of oxygen occupies 1.00 dm^3

Therefore, the mole of oxygen on 1.00 dm^3 is :

[tex]mole \: of \: oxygen = \frac{1.00 {dm}^{3} \times 1 \: mole}{22.4 \: dm^{3} } = 0.044642857 \: mole[/tex]

Also note that Avogadros Constant says: 1 mole of any gas contains [tex]6.022 \times {10}^{23}[/tex]molecules.

Hence, 0.044642857 mole of oxygen will contain :

[tex]0.044642857 \times 6.022 \times {10}^{23} = 2.69 \times {10}^{22} \: molecules[/tex]

Therefore, [tex]2.69 \times {10}^{22} \: molecules \: are \: present \: in \: 1dm^{3} \: of \: oxygen \: at \: stp[/tex]

When phenol reacts with ammonia is presence of zncl_(2) at 300^.

Answers

Answer:

the answer isWhen phenol Is heated with ammonia the presence of anhydrous ZnCl_(2), it is converted into.

Explanation:

i hope it's help

Why can a soil scientist be part of the agriculture?help ASAP I’ll give brainliest

Answers

Their research tells us what soil is best for growing different kinds of crops.

Why is it important for science to keep testing a hypothesis even after they’ve found it to be true?

Answers

Answer:

Explanation:

Repeated tests help determine whether the hypothesis is always true in different circumstances. Repeatedly testing a hypothesis qualifies it to be accepted as a theory.

What do theories help scientists do? (1 point)
A. prove hypotheses to be correct
B. explain large collections of data
C. determine if a claim is false
D. propose new ideas on the subject

Answers

Answer:

A. prove hypotheses to be correct is the correct answer I think

Explanation:

A scientific theory has been defined as a thorough explanation of the facts and includes the hypothesis and laws. The scientific theory allows scientists to prove the hypothesis to be correct. Thus, option A is correct.

What are scientific theories?

Scientific theories have been the summary of the universal and natural sciences that are well sustained and never proved. They are based on observable explanations and information that were tested through experimentation.

It uses experimental and research setup to prove the hypothesis to be credible by the conclusions and findings that are also supported by the scientific laws. They are reliable conclusions and are just not guesses.

Therefore, option A. scientific theories are used to prove the reliability of the hypothesis.

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In case of a chemical spill to your eyes, how many continuous minutes should you use the eye wash station for?.

Answers

Answer:

A minimum of 15 to 60 minutesof continuous washing. But it really depends on what you spilled on your eyes, but you should always wash thoroughly.

Answer:

20 min

Explanation:


What is the mass of 3 moles of Barium acetate, Ba(C2H3O2)2

Answers

Molar masses of elements are –

Ba = 137C=12 H=1O=16

Mass of Barium acetate

= 137 +( 12×2 +1×3+16×2)×2

= 137 + 59×2

=255

Mass of 1 mole of Barium acetate is 255.Therefore, mass of 3 moles of Barium acetate will be( 3×255) = 765.

Nitrogen (N) is much more electronegative than hydrogen (H). Knowing this, consider how the electrons will be shared in ammonia (NH3). What do you predict about the polarity of ammonia

Answers

Answer:

Ammonia is a polar molecule

Explanation:

Nitrogen is more electronegative than hydrogen, so it's ability to attract electrons is higher.

This means that shared electrons would be mostly pulled towards the central nitrogen atom.

It is a polar molecule because it has an asymmetrical shape, and unequal charges. Nitrogen has lone pair, and lone pair-bonding pair repel second most (after lone pair-lone pair), this contributes to its polarity

You should also note, that hydrogen bonded with either nitrogen, oxygen or fluorine has the most strongest bond called hydrogen bonding.

Hope this helps!

Please help me. For these 2 pictures are they a chemical change or physical change please explain your reasoning for both diagrams. Thank you!

Answers

Answer:

the first is a physical change the second is a chemical change. in the first picture, the substance hasn't changed it has just been divided up. the second picture demonstrates a chemical change because the elements of the compound have been split up and rearranged into a chemically different substance.

Explanation:

Avogadro's number represents the number of units in a mole. What is this value?

Answers

Answer: 6.02 x 10^23

Explanation: Please look at the photo below for confirmation!

what force types change the direction of motion

Answers

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity. Let’s say an object is moving along a table on earth, suddenly the finite table ends, resulting in the object being present in the air, which means there is no normal contact force N to combat the force by gravity mg, which is why there is an acceleration downwards. This proves as a projectile motion since the direction of motion start changing from horizontal to vertical. Another example is one throwing an object up. It moves up and slows down, reaching its maximum point, leading to it starting to move downwards. This too is a change in motion.

I believe an unbalanced force.

Unbalanced force is the change in direction of motion.

Here, look at the following definition: If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.

Which elements make up a water molecule?
COSMO
hydrogen and nitrogen
oxygen and nitrogen
oxygen and carbon
hydrogen and oxygen

Answers

Answer:

hydrogen and oxygen make up water molecules

Answer:

Oxygen and Nitrogen

Explanation:

because these two elements react very strongly

Work done when lifting up the water tank,give the water in the tank________ energy.

Answers

Answer:

Kinetic mechanical energy

Explanation:

The water was used to power a generator, creating electric energy.

water can be synthesized according to the following formula. suppose you have 17 “g” of H2. 2 H2 + O2 -> 2 H2O

Answers

2H2 + O2 = 2H2O + Energy

Which of the following is an adaptation of organisms in avoiding unfavorable condition due to a change in abiotic factor?
A. Migration of birds due to change in seasons.
B. Hibernation of a snake from September to December.
C. Plants die due to lack of water and high temperature.
D. Body temperature regulation of polar bears during winter

Volcanic eruption is considered as one of the changes in abiotic factors in the ecosystem. Which of the following is/are the effect/s of volcanic eruptions in the ecosystem?
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III
Help plsssssss

Answers

The effects of volcanic eruption include acid rain and destruction of lives and property.

What are abiotic factors?

The term abiotic factors refers to those factors that are non living such as rainfall, topography, etc. The adaptation of organisms in avoiding unfavorable condition due to a change in abiotic factor is hibernation of a snake from September to December.

A volcanic eruption is a sudden outburst of molten magma from the earth's crust. The effects of volcanic eruption include acid rain and destruction of lives and property.

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Find the mean, median, mode, and range of the data set.16, 18, 14, 3, 11, 1, 18 What name was given to the alliance between Germany and Austria? The Allies The German Alliance The Triple Entente The Central Powers Helen's gross pay is $28,000. She is married with 1 child. Her state income taxrate is 5.5%. How much will she pay in state income tax? a car travels a distance of of 540 km in 6 hours what's his speed Jenny has five exam scores of 62, 58, 77, 61, and 65 in her biology class. What score does she need on the final exam to have a mean grade of 70 In da yo _____ (encontrar) un libro fantstico What is the solution of the inequality shownbelow?y +5 < 5 1 What part of the cell does the ping pong ball or ball of tin foil show? 2 Write two or three sentences about the main functions of the nucleus?3. What colour of plasticine did you use to make the chloroplasts? 4.Was this the best colour to use? Explain your answer. 5.What function do the.chloroplasts have in a cell? 6.Does your model represent a plant cell or an animal cell? Give as many reasons as you can for your answer. . Which of the following is an adaptation of organisms in avoiding unfavorable condition due to a change in abiotic factor?A. Migration of birds due to change in seasons.B. Hibernation of a snake from September to December.C. Plants die due to lack of water and high temperature.D. Body temperature regulation of polar bears during winterVolcanic eruption is considered as one of the changes in abiotic factors in the ecosystem. Which of the following is/are the effect/s of volcanic eruptions in the ecosystem? A. I and II onlyB. I and III onlyC. II and III onlyD. I, II, and IIIHelp plsssssss 2 doctors is x % of 25 doctors Is it possible that all elements of an Ecosystem stay in balance with each other?if yes,what do we call such an ecosystem Choose the word which best completes the sentence.The young boys dream was of becoming an astronaut and traveling to ____.a.Disneylandc.spaceb.harbord.none of the above The mass of a watermelon is w kilograms. it is 2 kilograms more than three times the mass of a papaya. if the mass of the papaya. if the mass of the papaya. if the mass of the papaya is p kilograms, express w in terms of p. Mrs. Suarez sold pies for a fundraiser. she sold 3 5/6 pies the first day and 1 3/6 the second day. how many pies did she sell in all. using number line help please ill give you many points 3. 10 Rani received $250 and decided to buy an instant camera and an If the camera cost $187 and the cost of the SD card was of the price of the camera, how much money did Rani have left after buying these two items? Show how the quadrilaterals are related. Which of the following happens when two positively charged objects are moved away from each other?the two objects have no influence on each otherthe potential energy increasesthe potential energy decreasesboth a repulsive force and an attractive force is produced Why do fractures need to be treated immediately by a medical professional? A. Bones need to be set before the healing process may begin. B. Bones need to be set immediately, before they begin to heal, or they may heal crooked. C. Unless bones are set immediately, the healing process can take years to complete. D. Unless bones are set immediately the fracture will result in abnormal bone growths. Please select the best answer from the choices provided. A B C D. The table shows the temperature of ocean water in degrees Celsius at different depths in meters: Depth (meters) 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 Temperature (degrees Celsius) 23. 5 12 6 4. 2 4 2003. 8 3 2002. 8 2 Which scatter plot best represents the data in the table? plots ordered pairs 2, 4000 and 3, 3500 and 3. 5, 3000 and 3. 8, 2500 and 3. 9, 2000 and 4, 1500 and 6, 1000 and 12, 500 and 23, 100 plots ordered pairs 0, 2. 5 and 500, 11. 5 and 1000, 5. 5 and 1500, 4 and 2000, 3. 8 and 2500, 3 and 3000, 2. 2 and 3500, 2. 1 and 4000, 2 plots ordered pairs 0, 23. 5 and 1800, 12 and 1900, 8 and 2000, 5 and 2200, 4 and 2500, 3. 8 and 3000, 3. 2 and 3500, 3 and 4000, 2 plots ordered pairs 0, 23. 5 and 500, 12 and 1000, 6 and 1500, 4. 2 and 2000, 4 and 2500, 3. 8 and 3000, 3 and 3500, 2. 8 and 4000, 2.