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A bag contains 45 kg 80 g of sugar and the mass of the empty bag is 950 g. What is the mass of the bag containing this much of sugar?

A sample of sodium has a mass of 46g. What is the mass of the same number of calcium atoms as sodium atoms present in given sample (a) 46 g (b) 20 g (c) 40 g (d) 80 g

A meter stick is balanced at its centre (50 cm) . When two ocoins each of mass 5 g are put on the top of the other at the 12 cm mark, it is found to be balanced at 45 cm . What is the mass of the stick?

The mass of each gas cylinder is 16 kg 250 g. What is the total mass of 18 such cylinders ?

What is the mass of one .^(12)C atom in g?