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ira [324]
3 years ago
10

What is the percentage composition of cobalt in cobalt(II) fluoride, CoF2?

Chemistry
1 answer:
emmainna [20.7K]3 years ago
5 0

Answer:

60.8%

Explanation:

We'll begin obtaining the molar mass of cobalt(II) fluoride, CoF2. This can be done as shown below:

Molar mass of CoF2 = 59 + (19x2) = 97g/mol.

The percentage composition of cobalt in cobalt(II) fluoride, CoF2 is given by:

Mass of Co/Molar Mass of CoF2 x 100

=> 59/97 x 100 = 60.8%

Therefore, the percentage composition of cobalt in cobalt(II) fluoride, CoF2 is 60.8%

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Answer:

On the attached picture.

Explanation:

Hello,

At first, it is important to remember that kinetic molecular theory help us understand how the molecules of a gas behave in terms of motion. In such a way, the relative velocity of a gas molecule has the following relationship with the gas' molar mass:

V∝\frac{1}{\sqrt{M} }

That is, an inversely proportional relationship which allows us to infer that the bigger the molecule the slower it. In this manner, as argon is smaller than xenon, it will move faster.

Now, as the gases are in equal molar amounts and considering that argon moves faster, on the attached picture you will find the suitable depiction of the gas sample, since red dots (argon) have a larger tail than the blue dots (xenon).

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7 0
3 years ago
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andrezito [222]

Average speed of the trip = 52 km/hr

<h3>Further explanation  </h3>

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\tt avg.speed=\dfrac{tot~D}{tot~T}\\\\avg.speed=\dfrac{1560}{30}\\\\avg.speed=52~km/hr

7 0
3 years ago
In calcium fluoride, what is the closets noble gas that each ion becomes?
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F(-) >>> Ne (neon)
4 0
3 years ago
Which statement is correct about the rate of a chemical reaction? A. It increases when the concentration of reactants increases.
Natasha_Volkova [10]

Answer:

It increases when the concentration of reactants increases.

Explanation:

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3 years ago
For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 13.1 moles of methane, CH4 ?
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Answer:

7.0

Explanation:

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