# Frequent question: What is the exact weight of 3 moles of sodium?

Contents

## How many grams are in 3 moles of sodium?

Atomic weight of Na from periodic table is the number if grams a mole weighs 24 g/mole x 3 moles = 72 g if Na in 3 moles.

## What is the exact weight of 3 moles of Na?

Explanation: Sodium metal has a molar mass of 22.99⋅g .

## What is the mass of 3 moles of sodium carbonate?

Explanation: The molecular mass of Na2CO3 is 105.99⋅g⋅mol−1 . This is composed of 2×22.99⋅g(Na)+12.011⋅g(C)+3×15.999⋅g(O) .

## What is the weight of 5 moles of sodium?

Mass of sodium is 23 grams. So the total mass of 5 moles of sodium will be 5×23=165 .

## How much is 3 moles NaOH?

It’s a 3.0 M solution so 1 litre of solution contains 3 moles of NaOH. 250 ml of solution therefore contains 0.25 x 3 = 0.75 moles of NaOH. The molar mass of NaOH is 39.9971 g/mol, so 250 ml of this solution contains 0.75 x 39.9971 = 29.99 g, or if you round it up 30.0 g.

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## What is the mass in grams of 3 moles of sodium hydroxide?

Now use this to convert 120 g to moles. Now take 120 grams NaOh and multiply this by 1 mol NaOH/ 40 grams NaOH. You can cancel out the grams and you have moles left. Now you do 120 x 1 / 40 and you get 3 moles of NaOH!

## How many grams is 2.75 mol Na?

Furthermore, the atomic mass of sodium is 22.98977. That means that one mole of sodium weighs 22.98977 grams (22.98977 g/mol). Based on that information, to convert 2.75 moles of sodium to grams, we multiply 2.75 moles of sodium by 22.98977.

## How many moles of electrons weigh 1kg?

Or, 1 kg will contain = \$dfrac{1}{{9.108 times 6.022}} times {10^8}\$ moles of electrons. Thus, \$dfrac{1}{{9.108 times 6.022}} times {10^8}\$ moles of electrons will weigh one kilogram. So, the correct answer is “Option D”.

## How many grams are there in 2.1 moles of sodium?

Hence, the number of grams of sodium is present in 2 moles is 46g . Additional Information: The number 6.022×1023 is commonly referred to as the constant of Avogadro and is often denoted by the ‘ NA ‘ symbol.

## How many sodium ions are in 3 moles of Na2CO3?

contains two sodium ions. Therefore, 3.00 mole of contains of sodium ions.

## How many grams of aluminum oxide are in 3 moles?

Aluminum oxide is Al2O3. = 102.0 g/mol The molar mass of a compound is just the mass of one mole of the compound. Add up the molar mass of each and every atom in a formula unit of the compound.

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## What is the mass of 4.5 mol of he?

The total mass of four moles of helium (He) is 16.0104 grams. Helium has an atomic mass of 4.0026 atomic mass units, which is the average mass of…