Question

Define atomic mass unit.

August 20, 2024

Answer

Mass unit equal to exactly one- twelfth the mass of one atom of carbon – 12 is called one atomic mass unit. It is written as ‘u’.

Didn't liked the above answer ?

Text Generation Tool

💡 Some Related Questions

Calculate the number of aluminium ions present in 0.051g of aluminium oxide. (Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of Al = 27u)

Calculate the number of molecules of sulphur (S8) present in 16g of solid sulphur.

What is the mass of: (a) 0.2 mole of oxygen atoms? (b) 0.5 mole of water molecules?

Convert into mole. (a) 12g of oxygen gas (b) 12g of water (c) 22g of carbon dioxide

What is the mass of (a) 1 mole of nitrogen atoms? (b) 4 mole of aluminium atoms (Atomic mass of aluminium = 27)? (c) 10 moles of sodium sulphite (Na2SO3)?

Calculate the molar mass of the following substances: (a) Ethyne, C2H2 (b) Sulphur molecule, S8 (c) Phosphorus molecule, P4 (atomic mass of phosphorus = 31) (d) Hydrochloric acid, HCl (e) Nitric acid, HNO3

Give the names of the elements present in the following compounds: (a) Quick lime (b) Hydrogen bromide (c) Baking powder (d) Potassium sulphate.

Write the chemical formula of the following: (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate

What are polyatomic ions? Give examples?

When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen? Which law of chemical combinations will govern your answer?