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MrRissso [65]
3 years ago
5

What is the molecular formula for a compound with an empirical formula of CH₃O and a molar mass of 62g?

Chemistry
1 answer:
coldgirl [10]3 years ago
4 0

Answer:

CH_{6} O_{2}

Explanation:

Molecular formula can be calculated by finding the ratio of the molecular molar mass to the empirical molar mass, then multiplying the subscripts of the empirical molar mass by that ratio.

The empirical molar mass is 12.01 + 3(1.01) + 16.00 = 31.04g

The molecular molar mass is 62g

62/31.04 = 2

So the molecular formula is CH_{6} O_{2}

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What is the oxidation of KCL?
Assoli18 [71]

Rules:

1) The oxidation number of a monatomic ion equals the charge of the ion.

2)The oxidation number of a Group 1 element in a compound is +1.

3) The oxidation number of a Group 17 element in a binary compound is -1.

4) The sum of the oxidation numbers of all the atoms in a neutral compound is 0.

KCl is an ionic compound. Consists of K+ ions and Cl- ions.

Oxidation of K= +1 (rules 1 and 2)

Oxidation of Cl= -1 (rules 1 and 3)

Rule 4 also applies-  +1 + (-1)= 0- a neutral compound

Hope this helps :)

Explanation:

3 0
4 years ago
How can acid rain affect decomposers in an ecosystem?
adell [148]

Answer:

I think it would be C or D

Explanation:

I'm sorry I couldn't give you the correct answer, but glad I was able to try and help you. Have a blessed day!

4 0
3 years ago
What is the right answer for this. I really need help
statuscvo [17]
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6 0
4 years ago
g If you have three identical containers (same volume) at the same temperature and pressure, each with a different gas. Containe
vekshin1

Answer:

<em>The three gases, in the three identical containers, will all have the same number of molecules</em>

Explanation:

If these three gases (Helium He, Neon Ne, and Oxygen O_{2}) are all contained in separate identical containers with the same volume. And they are all stored at the same temperature, and pressure. Then, they'll all contain the same number of molecules. This is in line with Avogadro's law which states that "Equal volume of all gases, at the same temperature and pressure, have the same number of molecules."

6 0
3 years ago
When rubidium ions are heated to a high temperature, two lines are observed in its line spectrum at wavelengths (a) 7.9 × 10−7 m
svetlana [45]

Answer:

The frequencies of the two lines are:

a) 3.79\times 10^{14} s^{-1}

b)7.14\times 10^{14} s^{-1}

When we heat rubidium compound we will see red color.

Explanation:

\nu=\frac{c}{\lambda }

c = speed of light

\lambda = wavelength of light

a) Frequency of the light when wavelength is equal to 7.9\times 10^{-7} m

\nu=\frac{c}{\lambda }

\nu=\frac{3\times 10^8m/s)}{7.9\times 10^{-7}}

\nu=3.79\times 10^{14} s^{-1}

This frequency corresponds to red light

b) Frequency of the light when wavelength is equal to 4.2\times 10^{-7} m

\nu=\frac{c}{\lambda }

\nu=\frac{3\times 10^8m/s)}{4.2\times 10^{-7}}

\nu=7.14\times 10^{14} s^{-1}

This frequency corresponds to violet light

When we heat rubidium compound we will see red color.

4 0
3 years ago
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