The mass of 1.2 cm^3 of a certain substance is 5.74g. Calculate its density with due regard to significant figures.

The mass of 1.2 cm^3 of a certain substance is 5.74g. Calculate its de

1.	The mass of 1.2 cm^3 of a certain substance is 5.74g. Calculate its density with due regard to significant figures.
Answer» SOLUTION :Mass, m= 5.74g, volume, V= `1.2 CM^(3)` density, `d= (m)/(v) = (5.74g)/(1.2 cm^(3))` 5.74 has significant digits and 1.2 has two significant digits. no need for rounding off, `therefore d = (5.74)/(1.2)= 4.783333`. This is to be rounded off to two significant digits. The density of the given SUBSTANCE is `4.783 = 4.8 g cm^(-3)`