2 years ago

What is the molecular formula for a compound with an Empirical formula of C2H3, if the true Molar Mass is 81 g/mol:

Chemistry

1 answer:

GREYUIT [131]2 years ago

7 0

Answer:

To be honest I’d don’t even know

Explanation:

Because I’d said so

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**CHEMISTRY!! PLEASE HELP ASAP!!**

Minchanka [31]

Calcium = 1
Sulfur = 1
Oxygen = 4

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2 years ago

If an atom gains an electron, what overall charge will it have?

Oliga [24]

Answer:

The atom will have a negative charge.

Explanation:

Electrons are subatomic particles with a negative charge, protons are subatomic particles with a negative charge, and neutrons have no charge. When a neutral atom's balance is disrupted by an extra electron, the atom becomes negatively charged.

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2 years ago

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How much electric energy does a 40 W light bulb use if it is left on for 12 hours?

OlgaM077 [116]

480 hrs of electricity

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2 years ago

Which of the following has the correct name for either the acid or base

Vlad1618 [11]

Answer:

Explanation:

harmless

...............

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2 years ago

If the observed value for a density is 0.80 g/mL and the accepted value is 0.70 g/mL what is the percent error?

kvv77 [185]

Answer:

<h2>The answer is 14.29 %</h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

From the question

actual density = 0.70 g/mL

error = 0.8 - 0.7 = 0.1

So we have

$P(\%) = \frac{0.1}{0.7} \times 100 \\ = 14.285714...$

We have the final answer as

Hope this helps you

4 0

3 years ago