The mass of a box measured by a grocer's balance is 2.3 kg. Two gold pieces of masses 20.15g and 20.17 g are added to the box.
What is the total mass of the box

The mass of a box measured by a grocer’s balance is 2.300 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. What is:- the difference in the masses of the pieces to correct significant figures ?

What is the mass of 0.1 mole of CO_2 in g ?

The mass of a body as measured by two students is given as 1.2 kg and 1.23 kg. Which of the two is more accurate and why?

The formula of an acid is HXO_2 . The mass of 0.0242 moles of the acid is 1.657g . What is the atomic mass of X ?

A solution containing 2.44 g of solute dissolved in 75 g of water boiled at 100.413^@C . What will be the molar mass of the solute?

Mass of a body is 20 kg at the surface of earth. AT what depth does its mass reduce to 5 kg?

2.9 g of a gas at 95^(@)C occupied the same volume as 0.184 g of dihydrogen at 17^(@)C at the same pressure. What is the molar mass of the gas ?