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## How many moles of O are in Fe2O3?

For our purposes, the statement that we have **1 mole** of Fe2O3 means that we have 6.02*10^23 molecules of Fe2O3.

## What is the mass of 5.0 moles of Fe2O3?

2. What is the mass of 5 moles of Fe2O3 ? Smal x **159.0 1798.45g** Page 2 3.

## How many grams of Fe are in 50g of Fe2O3?

1 Expert Answer

50.0g/x = 78.7%/100% , which rearranges algebraically to get x alone to: 50g*100%/78.7% , the percent “units” cancel out and we get **63.5324015 grams** of iron(III) oxide [alternatively we could have turned the 78.7% into decimal form and solved for x in the equation 50.0/x=0.787].

## How many grams are in 1.75 moles of Fe2O3?

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**.

## How many moles are in fe3+?

Ernest Z. The molar mass of Fe³⁺ is 55.845 g/mol. The only difference between an Fe atom and an Fe³⁺ ion is **three electrons**.

## What is the formula for moles to grams?

Moles to grams example problem

Solution: Find out the molar mass of the substance (hint: you can use Molar mass of the substance alone to calculate molar mass). The molar mass of KClO3 is 122.548 g/mol. **Multiply the given number of moles** (2.50 mol) by the molar mass (122.548 g/mol) to get the grams.

## What is the mass of 5 moles of?

The mass of 1 mole of any substance is equal to that substance’s molecular weight. Thus we can say that each mole of $S{O_2} $ weighs 64 grams. Therefore the mass of 5 moles of $S{O_2} $ is **320 grams**.

## How many moles are in 50 grams of co2?

Explanation: The answer is **44.0095**.

## How many grams are in 4 moles of oxygen?

Since 1 mole of oxygen is equivalent to 32 g, 4 moles of oxygen gas would be equivalent to 4 moles x 32 g/mole = **128 g**. Thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.