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## What is the mass of 3 moles of NO2 gas?

We are given with the moles of nitrogen (N) is 3 moles. Molar mass of nitrogen is 14 amu or 14 grams. Thus 28 grams of nitrogen occupies 22.4 litres at STP and is 1 mole. Mass in grams of 3 moles of nitrogen is 3 × 14 = **42 grams** .

## What is the mass of 3.45 NO2?

What is the mass of 3.45 moles of NO2? Answer: The mass of nitrogen dioxide for given number of moles are **158.7 grams**.

## What is the total mass in grams of 0.75 mole of SO2?

Answer: The total mass of 0.75 moles of SO2 is **48 grams** Explanation: To find the total mass of 0.75 moles of SO2 in grams, you must first determine the molar mass of the compound.

## What is the formula for moles to grams?

In order to convert the moles of a substance to grams, you will need to **multiply the mole value of the substance by its molar mass**.

## How many moles are in 22 grams of co2?

(Atomic masses : C = 12 u, O = 16 u) So, the mass of 1 mole of carbon dioxide is 44 grams. Thus, 22 grams of carbon dioxide are equal to **0.5 mole**.

## What is the mass percent of NO2?

Nitrogen Dioxide, NO2 Relative molar mass, Mr = 14.0 +16.0 x 2 = 46.0 g/mol Percent composition oxygen = 32.0/46.0 x 100 = **69.6% Percent** composition nitrogen = 14.0/46.0 x 100 (or 100 – … 2 oxygens divided by 1 NO2 –> 32/46 x 100.

## How many molecules are there in 122 grams of NO2?

Answer Expert Verified

Number of molecules = **1.47 × 10^(23) molecules**. Thus, there are 1.47 × 10^(23) molecules present in 122 grams of NO2.