**Contents**show

## How many moles are in a gram?

This can also be written as **6.022×10 ^{23} mol^{–}^{1}**. The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.

## Why do we convert moles to grams?

When substances react, they do so in simple ratios of moles. … Balances DO NOT give readings in moles. So the problem is that, when **we compare amounts of one substance to another using moles**, we must convert from grams, since this is the information we get from balances.

## How do you convert moles to grams on a calculator?

**Multiply the given number of moles (2.50 mol) by the molar mass** (122.548 g/mol) to get the grams.

## How many grams are in 88.1 moles?

How many grams are in 88.1 moles of magnesium? 88.1 molx 24.3059 = **21409**.

## What is the formula for calculating moles?

**Divide the number of grams of each reactant by the number of grams per mole for that reactant**. 50.0 g of Na are used in this reaction, and there are 22.990 g/mol. 50.0 ÷ 22.990 = 2.1749. 2.1749 moles of Na are used in this reaction.