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Dima020 [189]
3 years ago
9

Round off the following to three significant figures 0.032000000cg

Chemistry
1 answer:
tino4ka555 [31]3 years ago
6 0
<span>0.032000000 cg

Rounding off  ........>

0.0320 cg

The last zero means the measurement is accurate to that digit
</span>
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Which of the following pairs of elements is most likely to form a covalent bond? A. Sodium and chlorine B. Magnesium and Oxygen
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An oxide of nitrogen contains 30.45 mass % N, if the molar mass is 90± 5 g/mol the molecular formula is N₂O₄.

<h3>What is molar mass?</h3>

The molar mass of a chemical compound is determined by dividing its mass by the quantity of that compound, expressed as the number of moles in the sample, measured in moles. A substance's molar mass is one of its properties. The compound's molar mass is an average over numerous samples, which frequently have different masses because of isotopes.

<h3>How to find the molecular formula?</h3>

The whole-number multiple is defined as follows.

Whole-number multiple = \frac{molar mass (g/mol)}{empirical formula mass (g/mol)}

The empirical formula mass is shown below.

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With the given molar mass or the molecular formula mass, we can get the whole-number multiple for the compound.

Whole-number multiple = \frac{90 g/mol }{46.01 g/mol} ≈ 2

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To learn more about molar mass visit:

brainly.com/question/12127540

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