CLASS 8 RS AGRAWAL SOLUTION EX.8a Q 9-15 SOLUTION

Ex 9.1 Q 14 , 15 and 16

Sets , Nios, Class-12, Ch-1 ,Ex-1.1 ,Q-1

If 2 liter of 9.8% w//w H_(2)SO_(4) (d = 1.5 g//mL) solution is mixed with 3 litre of 1 M KOH solution then the concentration of H^(+) if solution is acidic or concentration of OH^(-) if solution is basic in the final solution is:

Evaluate: 7\ x\ |-15|-|-9|x\ 8

The heat of solution of anhydrous CuSO_(4) is -15.9 kcal and that of CuSO_(4).5H_(2)O is 2.8 kcal. The heat of hydration of CuSO_(4) will be

The average of 8, 13, x, and y is 6. The average of 15, 9, x and x is 8. What is the value of y?

Each of solution A and B of 100 L containing 4 g NaOH and 9.8 g H2SO4. Find pH of solution which is obtain by mixing 40 L solution of A and 10 L solution of B.

Each of solution A and B of 100 L containing 4 g NaOH and 9.8 g H2SO4. Find pH of solution which is obtain by mixing 40 L solution of A and 10 L solution of B.

Two solutions, A and B, each of 100 L was made by dissolving 4g of NaOH and 9.8 g of H_(2) SO_(4) in water, respectively. The pH of the resultant solution obtained from mixing 40 L of solution A and 10 L of solution B is_______.

The taxi fare after each km, when the fare is Rs. 15 for the first km and Rs 8 for each additional km, does not form an AP as the total fare (in Rs.) after each km is 15,8,8,8, … . Is the statement true? Give reasons.