Explanation:
The main difference in boiling points are due to intermolecular attractions. With water, it is a polar molecule, has hydrogen bonding, and exhibits london forces. All of these combined, make H2O bonds very strong, which means more energy is required to transition from one state to another, leading to higher boiling points.
On the other hand, methane is a non-polar molecule that only exhibits very weak london forces. It being a non-polar molecule, means its bonds are very weak, which means less energy is required to boil methane.
Also, the Celsius system was made so that water would be a reference. This is a reason for why its boiling point temperature is convenient
Cu + 2 AgNO3 + Cu(NO3)2 + 2Ag
If 7.28 moles of copper and 7.28 moles of silver nitrate are available to
react, what is the theoretical yield of silver produced?
Answer:
7.28 moles Ag°
Explanation:
Cu° + 2 AgNO₃ => Cu(NO₃)₂ + 2Ag°
Given 7.28 moles 7.28 moles
To determine limiting reactant, divide the mole values by the respective coefficient of balanced equation. The resulting smallest value is the limiting reactant. Note: this is a short cut method for determining limiting reactant only. Once the limiting reactant is determined one must use the given mole values of the limiting reactant to solve problem. That is ...
Limiting reactant determination:
Cu° + 2 AgNO₃ => Cu(NO₃)₂ + 2Ag°
Cu: 7.28 / 1 = 7.28
AgNO₃ : 7.28 / 2 = 3.64 => Limiting Reactant is AgNO₃
Solving Problem depends on AgNO₃; Cu will be in excess.
Since coefficients of AgNO₃ & Ag° are equal, then the moles AgNO₃ used equals moles Ag° produced and is therefore 7.28 moles Ag°.
help me please. Can you please explain to me how to solve them? you can also send me a photo if that's better for you. thanks alot
Refer to the attachment
A 0.519 g sample of steam at 105.5 ∘C is condensed into a container with 5.91 g of water at 16.7 ∘C. What is the final temperature of the water mixture if no heat is lost? The specific heat of water is 4.18 J g⋅ ∘C, the specific heat of steam is 2.01 J g⋅ ∘C, and Δvap=40.7 kJ/mol.
The final temperature of the mixture is 28.93°C
Data;
mass of sample [tex]m_1 = 0.519g[/tex]initial temperature of solid [tex]T_1 = 105.5^0C[/tex]mass of water [tex]m_2 = 5.91g[/tex]Temperature of water [tex]T_2 = 16.7^0C[/tex]Final Temperature[tex]T_3 = ?[/tex]specific heat capacity of steam[tex]c_1 = 2.01 J/g^0C[/tex]specific hear capacity of water [tex]c_2 = 4.18 J/^0C[/tex]Heat TransferThe underlying principle of transfer of heat is discussed in heat transfer which can be summarized as heat lost by a warmer body is equal to heat gain by a colder body. The formula of this can be written as
[tex]Q=mc\delta \theta\\[/tex]
Heat Loss = Heat gain
[tex]m_1c_1(T_1-T_3)=m_2c_2(T_2-T_3)\\0.519*2.01*(105-T_3)=5.91*4.18*(16.7-T_3)\\109.53495-1.04319T_3=412.55346-24.7038T_3)\\1.04319T_3+24.7038T_3=412.55346-109.53495\\25.74699T_3=303.01851\\T_3=\frac{303.01851}{25.74699}\\T_3=11.77^0C[/tex]
The final temperature is equal to
[tex]T_f = \delta vap - T_3\\T_f = 40.7 - 11.77\\T_f = 28.93^0C[/tex]
The final temperature of the mixture is 28.93°C
Learn more on heat transfer here;
https://brainly.com/question/13439286
What is the boiling point of silver?
Answer:
3,924°F
Explanation:
here is the answer it is a little hard to explain but hopeing it helps you a lot
Answer:
The temperature would be 3,924 degrees Fahrenheit.
Explanation: Hope this helps<3
12 Chlorine gas is bubbled into aqueous potassium iodide.
What is the ionic equation for the reaction that takes place ?
HELP PLZZZ
the answer is a because the positive cations are attracted to the negative cathode. when the positive ions get to the cathode they pick up an electron and this produces normal sodium.
Which gas produced during the reaction between hydrogen carbonate and acetic acid solution?
Answer:carbon dioxide gas
Explanation:you can tell when gas if forming when you can see the formation of bubbles
Sugar dissolves when stirred into coffee. The coffee is the ________, the sugar is the ________, and the sweetened coffee is the ________
Answer:
The coffee is the solvent. The sugar is the solute. The sweetened coffee is the solution.
Explanation:
Sugar dissolves when stirred into coffee. The coffee is the solvent, the sugar is the solute, and the sweetened coffee is the solution.
The periodic table is organized into vertical groups of:.
4. Which of the following statements is describing the intensive physical property?
A. Oil and water do not mix.
B. Magnesium burns brightly in oxygen.
C. Iron has more mass than aluminum.
D. A quarter has more volume than a penny.
600.0 mL of air is at 20.0 Celsius. What is the volume of the same air at 60.0 Celsius
Answer:
0.682L or 682mL
Use Charles Law of V1/T1 = V2/T2
V1 = 0.6L
T1 = 293K
V2=?
T2= 333K
Explanation:
?
Need the formula and the solution.
why is chemistry important in cars
WO3 + 3H2 → W + 3H2O
What is the percentage atom economy to make tungsten (W) from
tungsten oxide in this reaction?
This problem is providing us with the reaction whereby tungsten is produced from tungsten (VI) oxide and hydrogen, so the percentage atom economy is required and found to be 64.3 % according to:
Atom economy:In the ambit of green chemistry, atom economy is one of the twelve principles of green chemistry, and tell us how efficient a chemical process is, in terms of the necessary reactants, versus the yielded products. In the ideal case, it is 100 % meaning that all the reactants lead to the desired product.
However, when byproducts are present, this percentage dwindles and the idea is to reason how convenient the process is. In this case, we can calculate the atom economy, by simply dividing the atomic mass of tungsten by the addition of the molar mass of tungsten (VI) oxide and three times that of waters:
[tex]\%A-E=\frac{183.84g/mol}{231.84g/mol+3*18.02g/mol} *100\%\\\\\%A-E=64.3\%[/tex]
Learn more about atom economy: https://brainly.com/question/25751649
What is a catalyst?
will choose brainliest and rate 5 stars!!! Quick!!!!!!!!!!!!!!!!!
Answer:
A catalyst is a chemical that speeds up a reaction without being used up or chemically changed.
Open dumping in landfills was outlawed in many states because of _____. methane explosions foul odors groundwater pollution their unsightliness
Answer:
groundwater pollution
Explanation:
Hope this solve your answer
What is the molar mass of diphosphorous heptasulfide
Answer:
347.6995462
Phosphorus heptasulfide, free from yellow and white phosphorus appears as light-yellow crystals, light-gray powder, or fused solid. Melting point 310°C.
...
Science
Malleability is a physical property.
True
False
Answer:
It is true! Have a great day/night :). & make sure you drink water and eat!
Explanation:
The backbone ___ number of bones called veterbrae.
A) 32
B) 33
C) 34
D) 35
Answer:
Option B is correct option
Select the correct answer. What determines the average kinetic energy of the particles in a gas? A. The number of collisions B. The number of particles C. The size of the particles D. The temperature.
Answer:
D
Explanation:
The one above me, and another question resembling this one can attest that is, indeed, the temperature....
During the nuclear fission process, the transformation between a parent and daughter isotope involves a a release of neutrons and energy. b an increase in total energy. c the transformation of chemical energy to potential energy. d the transformation of heat energy to kinetic energy.
Answer:
The energy harnessed in nuclei is released in nuclear reactions. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus. The consequence of fission or fusion is the absorption or release of energy.
Introduction
Based on the table above what gas do you think was produced in this reaction.
Answer:
Explanation:Hydrogen peroxide
Explanation:
Hydrogen peroxide (
H
2
O
2
) is commonly used as a first aid antiseptic and decomposes naturally. They are usually kept in special containers to retain it's chemical properties, but if you poured some into a bowl you would see little gas bubbles rising up.
2
H
2
O
2
→ 2
H
2
O
+
O
2
considering the chemical reaction for cellular respiration, what must be included in the respirometer containing the germinating seeds?a)carbon dioxideb)boiled waterc)oxygend)warm water and light
Answer:
c) oxygen
Explanation: In order for pea seeds to germinate, they require moisture. In order for cellular respiration to occur, oxygen is required.
Using the solubility curves, approximately how many grams of NaNO3 can be dissolved in 100. grams of water at 80 °C?
A.10
B.148
C.0
D.162
Answer:
Answer is B
Explanation:
Answer:
As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C .
You can determine how many grams of sodium chloride, commonly known as table salt, can be dissolved in
100 g
of water at
80
∘
C
by taking a look at its solubility graph.
A substance's solubility graph tells you how its solubility changes, let's say starting from room temperature, when temperature is either decreased or increased.
What floats on top of molten magma under the earth’s surface?.
Explanation:
Earthquakes. are caused by the earth's crust, more specifically, tectonic plates that float on top of molten magma. These plates bump into each other. it's the answer Earthquakes.
2. HOW many molecules are in 0.5 moles of acetate molecules?
Answer:
3.011 x 10^23 molecules of acetate
Explanation:
Calculate the volume of a carbon monoxide when 22 grams of CO(g) exerts a pressure of 99.5 Kpa at 50 C.
The topic is Chemistry and is Ideal gas laws, please help
Answer:
21.32 L
Explanation:
First, convert grams to moles using molar mass. C has a mass of 12 and O has a mass of 16. CO2 will therefore have a mass of 28 g/mol. Divide 22 by 28 to get about 0.79 moles. Convert C to Kelvin by adding 273; getting 323K. Then use the ideal gas law (PV=nRT) to solve for V (V=nRT/P). This gets you 21.32 L, hope this helps!
PLEASE HELP!!!! THIS IS URGENT
Magnesium has several isotopes. Atoms of three of these isotopes have 12, 13, and 14
neutrons, respectively. What is the atomic number, mass number, and number of protons and electrons of each of magnesium’s isatopes?
Answer:
see explanation
Explanation:
An experiment at sandia national labs in New Mexico is performed at 99.47 kPa (due to the altitude). What is this pressure in atm?
Use a conversion factor to figure this out.
[tex]=99.47\ kPa[/tex] × [tex]\frac{1\ atm}{101.325\ kPa}[/tex]
= 0.9816925734 atm (round as you wish)
what would be the water potential of pure water at atmospheric pressure?
Answer:Zero is the value of water potential of pure water at atmospheric pressure
Explanation:
i hopes it helps
Help me with this question please
Answer:
I dont know sorry i will try my best htough
Explanation:
