The frequency factor from the calculation is 7.1 × 10^25.
What is the Arrhenius Equation?The Arrhenius theory holds that the reaction between molecules owes to the collision between the reactant species. The reacting molecules must posses energy in excess of a minimum amount called the activation energy.
From the theory;
k = A e^-Ea/RT
k = rate constant
A = collision factor
Ea = activation energy
R = gas constant
T = Absolute temperature
5.8 × 10–6 = Ae^-(265 × 10^3/8.314 × 460)
A = 5.8 × 10^–6/8.1 × 10^-31
A = 7.1 × 10^25
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Find the molarity: 9.82 grams of lead (IV) nitrate are dissolved to make 465 mL of solution.
The the molarity 9.82 grams of lead (IV) nitrate are dissolved to make 465 mL of solution is 0.063 moles per liter of the solution.
What is molarity?The molarity of a solution is the number of moles of solute present is per liter of a given solution which can be effected by the change of any temperature it is denoted by M is known as molarity of a solution.
Here,
Molarity = number of moles of solute / volume of solution in liiters.
Molarity = mass of solute / molar mass of solute × 1000/ volume in ml
molar mass of lead (IV) nitrate = 331.2
Substituting the value in formula,
Molarity = 9.82 / 331.2 × 1000/ 465 ml
Molarity = 0.063 moles pe liter.
Therefore, the molarity 9.82 grams of lead (IV) nitrate are dissolved to make 465 mL of solution is 0.063 moles per liter of the solution.
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Which of the following is supported by reliable evidence?
A. Intelligent Design
B. Theory of Gravity
C. Detoxing
D. Homeopathy
explain why gas such as oxygen is compressed in tanks.
Find the volume of a cube if the mass is 55.6 grams and the density is 1.23 g/ml.
Answer:
45.20mL
Explanation:
Hello!
To find the volume of a cube given mass and density, we can use the equation [tex]p=\frac{m}{V}[/tex]
p=density
m=mass
V=volume
Let's rearrange the equation so it's equal to volume.
[tex]v=\frac{m}{p}[/tex]
Let's add in the numbers. m is 55.6g and density is 1.23g/ml
v=(55.6g)/(1.23g/mL)
v=45.20mL
Statement:
The mass of cube is 55.6 g and the density is 1.23 g/ml.
To find out:
The volume of the cube.
Solution:
Mass of the cube (m) = 55.6 gDensity (ρ) = 1.24 g/mlWe know,[tex] \sf \: density = \frac{mass}{volume} \\ \sf \: = > volume = \frac{mass}{density} [/tex]
Therefore, the volume of the cube[tex] \sf = \frac{55.6}{1.23} ml \\ \sf= 45.2 \: ml[/tex]
Answer:
The volume of the cube is 45.2 ml.
Hope you could understand.
If you have any query, feel free to ask.
The strength of an acid depends on
a. the number of double bonds
b. the number of protons released
c. the number of electrons gained
d. all of the above
Answer:
[tex] \huge \sf \boxed d[/tex]
The strength of an acid depends on the concentration of the hydronium ions present in a solution.
Which element is more electronegative than nitrogen (N)?
The Periodic Table
A. Phosphorus (P)
B. Fluorine (F)
C. Lithium (Li)
O D. Helium (He)
SUBM
Which body part MOST LIKELY formed this fossil?
blood
B
bones
fur
D
skin
Answer:
Bones are the correct answer.
3. Write the following numbers in scientific notation:
a. 6,200,000
b. 0.000367
Answer:
A) 6.2*10^6
B) 3.7*10^-4
Explanation:
pkw definition in chemistry
Answer:
pkw= pH + pOH.
Explanation:
As. [H3O+] equals [OH-] then pH must equal pOH because they are just negative logs of the respective concentration, which are equal.
What is the mass percentage of O in C₂H₆O₂? Provide an answer to two decimal places.
Answer:
51.61% of O in C₂H₆O₂
Explanation:
First find the total mass: C = 12 , H = 1 , O = 16
total mass of C₂H₆O₂ = 12 * 2 + 1 * 6 + 16 * 2 = 62
so total mass of oxygen, O₂ in this is: 16 * 2 = 32
now find O₂ percentage in C₂H₆O₂⇒ ( 32 / 62 ) * 100
⇒ 51.61%
what is polimation ???????????????????????????????????????????/
10)
How many total atoms (N + H) are in one mole of ammonia (NH3) molecules?
A)
6.0x10^23
B)
1.2x10^24
C)
1.8x10^24
9
D)
2.4x10^24
Answer:
D
Explanation:
Took the test
Answer:
D
Explanation:
Got it right on my test
[tex] \frac{2.568 \times 5.8}{4.186} [/tex]
Round off the answer to the correct number of significant figures:
Amelia is running a marathon. How do her muscular and skeletal systems work together to allow her to run?
A: The muscles in her leg relax and contract to move the bones. now go get a 100!
Answer:
A. the muscles in her leg relax and contract to move the bones (is the answer)
Explanation:
Question 8 of 10
How does the kinetic energy of solids, liquids, and gases compare?
A. Gases have the highest kinetic energy, followed by liquids, and
then solids.
B. Gases have the lowest kinetic energy, followed by liquids, and then
solids.
C. Gases have no kinetic energy, solids have a little, and liquids have
the most.
D. Gases have the same kinetic energy as liquids, which is more than
solids.
SULIT
Answer:
It is (A.) Gases have the highest kinetic energy, followed by liquids, and then solids
Explanation:
Gases have high kinetic energy because their particles are far apart from each other and have a negligible force of attraction, whereas Liquids have the high force of attraction as compared to gases so they have less kinetic energy than gases, and Solids have the high force of attraction between their particles because of that its molecules are closely packed, therefore
Gases have the highest kinetic energy,
Followed by Liquids,
Then finally, Solids with the lowest kinetic energy.
I think the right answers is c
C3H8 + _O2 -> _CO2 + _H2O
HELP ME OUT PLEASE
Answer:
the answer is 5,3,4
Explanation:
it balances the eqaution
helooooooopoooooo
kk
What is .0595 dm = to Km
Answer:
uhm I'm not sure if this is the right answer? sorry D:
5.95e-6
Answer:
0.0595 decimeter(dm)=0.00000595km
Explanation:
Is it possible to have less than 1 mole of atoms?
state the oxidation number of S in
[tex]H_{2}SO_{3}[/tex]
thankyou ~
Taking into account the definition of oxidation number, the oxidation numbers of S in H₂SO₃ is 4.
Definition of oxidation numberThe oxidation number is the charge that an atom has; is an integer that represents the number of electrons an atom puts into play when it forms a given compound.
In other words, the oxidation number of an element is a value that indicates the number of electrons that element gains or loses when it combines with another.
Oxidation number determinationTo determine the oxidation state of different elements it is necessary to know that:
The oxidation number of hydrogen in a compound is +1, except in metal hydrides, where is –1.The oxidation number of oxygen in a compound is –2, except in peroxides, where it is –1.On the other side, the sum of the oxidation numbers of the existing elements in a chemical formula must add up to zero.
Then, considering the oxidation numbers of each element, multiplying it by the number of existing elements in the chemical formula and adding it and equaling it to zero, the value of the missing oxidation number can be obtained.
Oxidation numbers of SIn this case, the oxidation numbers of S in H₂SO₃ is calculated as:
2× (+1) + oxidation numbers of S + 3×(-2)= 0
2 + oxidation numbers of S -6= 0
oxidation numbers of S -4= 0
oxidation numbers of S= 4
Finally, the oxidation numbers of S in H₂SO₃ is 4.
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How many grams of liquid CF2Cl2 are needed to cool 156 g of water from 42.9 to 20.5 °C? The specific heat of water is 4.184 J/(g·°C).
To cool 156 g of water from 42.9 °C to 20.5 °C, 101 g of CF₂Cl₂ are required.
CF₂Cl₂ is a refrigerant. When it is evaporated, it absorbs heat from water, which cools.
What is evaporation?Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
Step 1: Calculate the heat released by water.We will use the following expression.
Qw = c × m × ΔT = (4.184 J/g.°C) × 156 g × (20.5 °C - 42.9 °C)
Qw = -14.6 kJ
where,
Qw is the heat released by water.c is the specific heat of water.m is the mass of water.ΔT is the change in the temperature of water.If water releases 14.6 kJ of heat, CF₂Cl₂ absorbs 14.6 kJ of heat (Qr = 14.6 kJ).
Step 2: Calculate the mass of the refrigerant required.We will use the following expression.
Qr = ΔH°evap × m
m = Qr/ΔH°evap = 14.6 kJ / (0.144 kJ/g) = 101 g
where,
Qr is the heat absorbed by the refrigerant.ΔH°evap is the heat of vaporization of the refrigerant.m is the mass of the refrigerant.To cool 156 g of water from 42.9 °C to 20.5 °C, 101 g of CF₂Cl₂ are required.
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What adaptation does a tufted titmouse have that allows it to stay in a broadleaf forest year-round?
They fluff their feathers for warmth.
They migrate for the winter.
They eat mice for energy to warm themselves.
They hibernate for the winter.
Answer:
They fluff their feathers for warmth.
Explanation:
It was in the explanation on Edge.
Tufted titmouse migrate for the winter that allows it to stay in broadleaf forest year round. Hence, option b is correct.
What is tufted titmouse?The Tufted Titmouse is a little, grey bird with an echoing call that is prevalent in eastern deciduous woodlands and a regular feeder visitor.
These birds have huge black eyes, a short, round beak, and a brushy crest, which give them a peaceful yet urgent appearance that complements the way they dart through trees, dangle from twigs, and land at bird feeders.
Tufted Titmice frequently visit backyard bird feeders, particularly in the winter. Although suet, peanuts, and other seeds are also acceptable, they prefer sunflower seeds.
The tufted titmice live in a variety of environments, such as disturbed areas, semi-open areas, and deciduous and mixed woods. They are a frequent visitor to bird feeders and are prevalent in residential settings with trees. Hence, option b is correct.
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Is the sky blue on a sunny Tuesday evening
Answer: Yes
Explanation:
It is all to do with the nature of sunlight and how it interacts with Earth's atmosphere.The sun's light appears to be white but it is made up of all the colours of the rainbow. When the light travels through our atmosphere it is scattered in all directions by all the gases and particles in the air.The blue light is scattered more than other colours because it travels in smaller and shorter waves, this is why the most prominent colour in the sky is blue.
What are sedimentary characteristics ?
Answer:
Five main characteristics of sedimentary rocks are: ... Sedimentary rocks are largely found on the Earth's surface. They cover 75% area of the Earth. These rocks are generally not crystalline in nature. They are soft and have many layers as they are formed due to the deposition of sediments
Explanation:
-bro look it up
ii. Fill in the blanks for the drawing of a voltaic cell that’s made with copper/copper (II) nitrate (E° = 0.34 V) and zinc/zinc (II) nitrate (E° = –0.76 V). Briefly explain the role of the salt bridge.
Answer:(i) Voltaic cell
A voltaic cell is a device that uses a chemical reaction to produce electrical energy.
a. Electron flow
b. Voltmeter or lightbulb
c. Electron flow
d. Cathode or Cu
e. Cu²⁺(aq) and NO₃⁻(aq)
f. Salt bridge
g. Zn²⁺(aq)
h. Anode or Zn
A lamp has been on for several hours, and its lampshade begins to feel warm. What causes this to happen
which type of measurement would you use to determine the mass of sugar?
Answer:
When it comes to how to measure sugar, you need the right measuring tools. All sugar varieties are considered a dry ingredients so use dry measuring cups and measuring spoons.
Explanation: well there are only a few things you can use to measure things that aren't water so this only makes sense.
Which metal will react most readily with 1.0 m HCL to produce H2(g)
Answer:
(1) Ca (3) Mg(2) K (4) Zn
Explanation:
will react most rapidly
What is the scientist notation of 0.0062
____ x 10 blank
points
The waves that have shorter wavelengths than visible light are: (select all that are true)
ultraviolet Waves
Infrared waves
gamma rays
radio waves
microwaves
Answer:
Ultraviolet Waves
Explanation:
Because these waves have higher frequencies then
visible lights so they carry more energy
