can someone help me with this chemistry question?

[50 MARKS] ANSWER ALL QUESTIONS IN THE ANSWER BOOKLET PROVIDED 1 a) Sodium chlorate, Nacios, is used to bleach paper Calculate the relative formula mass (M) of sodium chlorate. (2 marks) b) A solution of water and HCl contains 25% HCl by mass The density of the savetion is 105 g/ml. If you need 1.9 g of HCI for reaction, what volume of this solution will you use? (3 marks) c) A molecule of N, has a mass of 4 6x 10 kg and is at a temperature of 293 K The nitrogen's velocity is given in the equation 1 and it's kinetic energy is given by 3 Ex - What is the velocity of a nitrogen molecule? (k = 1 4 x 10)