Suppose 2Kg of sugar contains `9xx10^6` crystals.How many sugar crystals one there in (i)5kg of sugar? (ii)1.2 kg of sugar?

(a) How many significant figures are there in 1.00 xx 10^(4) ? (b) One mole of sugar contains…….. Oxygen atoms. ( c) Give an example of moleules in which the empirical formula is CH_(2)O and the ratio of molecular formula weight and empirical formula weight is 6.

Fill in the blanks. ltbRgt a. The mass of MgCL_(2) should be dissolved in 750 g of water in order to prepare a 1.05 m solution is…… b. The percentage composition (by mass) and mole fraction of each component is sugar containing 1000 g of sugar in 2000 g of water is.........

Specific rotation of sugar solution is 0.5 deg m^2 kg^-1 * 200 kg m^-3 of impure sugar solution is taken in a sample polarimeter tube of length 20 cm and optical rotation is found to be 19^@ . The percentage of purity of sugar is

A sugar syrup of weight 214.2 g contains 34.2 g of sugar ( molar mass = 342). The molality of the solution is :

Osmotic pressure of a sugar solution at 24^(@)C is 2.5 atm. The concentration of the solution in gm mole per litre is :

Calculate the force of gravitation between the earth and the sun, given that the mass of the earth = 6 xx 10^(24) kg and of the sun = 2 xx 10^(30) kg. The average distance between the two is 1.5 xx 10^(11) m.

If the radiator of an automobile contains 12 L of water, how much would the freezing point be lowered by the addition of 5 kg of prestone ("glycol" C_(2)H_(4)((OH)_(2)) . How many kg of Zeron (methyl alcohol) would be required to produce the same result?