`15 divide 3 xx 5-10`=____.

Simplify: (i) (2.75 xx 10^(7))+(1.23 xx 10^(8)) (ii) (1.598 xx 10^(17)) -(4.58 xx 10^(15)) (iii) (1.02 xx 10^(10)) xx (1.20 xx 10^(-3)) (iv) (8.41 xx 10^(4)) divide (4.3 xx 10^(5))

65 divide 5-15 xx 3 + 27 divide 9 xx 3 -24 divide 8 +7

The rate constant of a first order reaction is 3 xx 10^(-6)" per sec" . If the initial concenration is 0.10M , the initial rate of reaction is : [Give your answer divide by 1.5 xx 10^(-8) ]

The simplified value of ( 7/5 divide 7/10 of 3/4 ) divide 4/9 - ( 7/16 divide 10 1/2 xx 7 1/5)xx 5/12 is

Divide : 15x^(2) - 10 x by 5x

In an oil drop experiment , the following charge (in orbitary units) were found on a series of all droplets 2.30 xx 10^(-15),6.90 xx 10^(-15) xx 1.38 xx 10^(-14),5.75 xx 10^(-15), 3.45 xx 10^(-15),,1.96 xx 10^(-15), .Calculate the magnitude of the charge on the electron

In an oil drop experiment , the following charge (in orbitary units) were found on a series of all droplets 2.30 xx 10^(-15),6.90 xx 10^(-15) xx 1.38 xx 10^(-14),5.75 xx 10^(-15), 3.45 xx 10^(-15),,1.96 xx 10^(-15), .Calculate the magnitude of the charge on the electron