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## How do you find moles of methanol?

1 Expert Answer

Get **the mass in grams of methanol by multiplying its density by the given volume**. Divide the mass in grams by the molecular weight in grams per mole. The result is the number of moles that you have in the given volume.

## How many moles are in 100 grams of Fe?

Conclusion: **1.79 moles** are there in 100g of iron.

## How many moles of oxygen are in 100 grams?

There are **6.25 moles** of oxygen in 100g of Water.

## How many moles of hydrogen are in 100 grams?

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This requires **100/18 moles** of hydrogen. As the molar mass of hydrogen is 2, it requires 200/18 = 100/9 g of hydrogen.

## What is the mass of 100 grams of water?

This means 100 g = **0.1 kg**. Another way of saying this is that 0.1 liters of water weight 0.1 kg.

## 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 do I calculate moles?

**How to find moles?**

- Measure the weight of your substance.
- Use a periodic table to find its atomic or molecular mass.
- Divide the weight by the atomic or molecular mass.
- Check your results with Omni Calculator.

## How many grams is 1.75 moles of Fe?

In one mole of fe2o3 there are two moles of iron atoms. Now gram atomic wt. of Fe is 56.So in one mole of Fe2O3 there are 2×56=112 gm of Fe. Hence in 1.75molesFe2O3 there are 1.75×2 moles or **1.75×56 gm of iron**.