47.006          (ii)  0.008          (iii)  19.19

18!+19!

Find the cube of :0.08( ii) 2.1

Find the value of the following . (i) 19.72 xx 4 (ii) 0.0745 xx 10 (iii) 3.52 xx 14

While doing his experiment, Millikan one day observed the following charges on a single drop (i) 6.563 xx 10^(-19) C (ii) 8.204 xx 10^(-19) C (iii) 11.50 xx 10^(-19) C (iv) 13.13 xx 10^(-19) C (v) 16.48 xx 10^(-19) C (vi) 18.09 xx 10^(-19) C From this data the value of the elementary charge (e) found to be

Represent the following decimal numbers on the number line: 0.2 (ii) 1.9 (iii) 1.1 (iv) 2.5

Write as fractions in their lowest terms. (i) 0.2, "(ii)" 0.04, "(iii)" 0.008

Find the sum: 2+4+6+\ +200 (ii) 3+11+19+\ +803 (iii) (-5)+(-8)+(-11)+\ ddot+(-230)

Calculate the concentration of K^(o+) (x) and Cl^(ɵ) (y) in a solution obtained by mixing 20 " mL of " 0.1 M NaCl , 30 " mL of " 0.2 M KCl, and 25 " mL of " 0.15 M KNO_3 and making the solution up to 100 mL. (a). x=0.06,y=0.0375 (b). x=0.0975, y=0.08 (c). x=0.08,y=0.08 (d). x=0.08,y=0.0375

Add : (i) - 36 + 19 (ii) 49 + (-27)

Which is greater ? 0.099 or 0.19