1 Worth your salt If your mass is 1x102 kg how many grains o

1.) Worth your salt: If your mass is (1x10^2) kg, how many grains of salt would you be equivalent to if a grain of salt has a mass of (1.0x10^-1) milligrams?

2.)A grain of salt weighs about 0.1 milligrams. How many grains of salt is there in a 1kg box of salt?

Solution

Number of grains of salt has a mass of 1*10^-1mg =

(1*10²)/(1*10^-1*10^-3) = 10²⁺¹⁺³=10⁷ grains