Susan bought a bangle weighing `7.4` grams and a necklace weighing `10.8` grams. She bought a ring also and the total weight of all three is `20` grams. What is the weight of the ring?

One litre of kerosene weighs 800 grams. What is the weight of 2 litres of kerosene?

"The star of India'' sapphire weighs 563 carats If one carat is equal to 200 mg, what is the weight of the gemstone in grams?

Find the answer to each of the problems below and then write it in words and as multiplication of numbers. i) What is the total weight of two pieces, of pumpkin, each weighing 250 grams? ii) What if the weight is put in kilograms?

A sample of pure Ca metal weighing 1.35 grams was quantitatively converted to 1.88 grams of pure Cao. What is the atomic weight of Ca? (O = 16)

A rectangular cube of iron is of side 8 centimetres. What is its volume? 1 cubic centimetre of iron weighs 8 grams. What is the weight of the large cube?

One gram of metal M^(3+) was discharged by the passage of 1.81 xx 10^(23) electrons. What is the atomic weight of the metal?

On dissolving 2.0 g of a metal in sulphuric acid, 4.51 grams of the metal sulphate was formed. The specific heat of the metal is 0.057 cal/g. What is the valency of the metal and its exact atomic weight?

A silver coin weighing 11.34g was dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present at AgNO_(3) ) was precipitated as silver chloride. The weight of the precipitated silver chloride was 14.35g . Calculate the percentage of silver in the coin. : 4.8% , 95.2% , 90% , 80%

One cubic centimetre of iron weighs 7.8 grams. Write as sequences, the volumes of weights of Iron cubes of sides 1 centimetre, 2 centimetres and so on.