# How many moles are in 30 0 g of MgCl2?

Contents

## How many moles are in MgCl2?

Since one mole of MgCl2 consists of one mole of magnesium and two moles of chlorine, the mass of one mole of MgCl2 must be the sum of the masses of the elements. The mass of one mole of a substance is called the molar mass or molecular weight.

## How do you calculate grams to moles?

Divide the number of grams of the compound, NaOH, by the molecular weight and as a result, the grams (g) unit cancels and all we have left is the unit mol (moles).

## How do you find the moles of MgCl2?

The first step is to calculate the molar mass (gram formula weight) of MgCl2. Molar mass = (24.31 + 2 × 35.45) = 95.21 g mol–1 i.e. 95.21 g of MgCl2 is exactly 1 mole.

## What is the mass of 1 mole of MgCl2?

We know that 2 moles of HCl produces 1 mol of MgCl2 M g C l 2 .

## What is the gram formula mass of MgCl2?

Or, we would say that the formula weight of MgCl2 = 95.211 g/mol (i.e., 95.211 g of magnesium chloride has a mole of magnesium cations and 2 moles of chloride anions.

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## What is 1 mole in grams?

Thus, for example, one mole of water (H2O) contains 6.02214076×1023 molecules, whose total mass is about 18.015 grams and the mean mass of one molecule of water is about 18.015 daltons, roughly a combined atomic mass number of 18.

Mole (unit)

mole
Unit system SI base unit
Unit of Amount of substance
Symbol mol
Conversions

## How many grams are in 5 moles?

Therefore, 160 g of oxygen is present in 5 moles.

## What is a 1 mole?

A mole is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

## How many grams are there in 3.5 moles of oxygen?

So,3.5 moles of oxygen has mass=3.5×16=56grams.

## How do you find moles from molarity?

To calculate the number of moles in a solution given the molarity, we multiply the molarity by total volume of the solution in liters.