Mole ConceptHard
Question
A sample of clay contains 50% silica and 10% water. The sample is partially dried by which it loses 8 g water. If the percentage of silica in the partially dried clay is 52, then what is the percentage of water in the partially dried clay?
Options
A.2.0%
B.6.4%
C.10.4%
D.2.4%
Solution
$\frac{\text{Mass of silica}}{\text{Mass of all components other than water}} = \text{Constant}$
$\text{Or }\frac{50}{90} = \frac{52}{100 - x} \Rightarrow$Mass per cent of water in partially dried clay, x = 6.4%
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
A mixture contains NaCl and unknown chloride, MCl. When 1 g of this mixture is dissolved in water and excess of AgNO3 so...The percentage by volume of C3H8 in a mixture of C3H8, CH4 and CO is 36.5. The volume of CO2 produced when 100 ml of the...In a textile mill, a double effect evaporator system concentrates weak liquor containing 4% (by mass) caustic soda to pr...A quantity of 1.4 g of a hydrocarbon gives 1.8 g water on complete combustion. The empirical formula of hydrocarbon is...When 12 g graphite is burnt in sufficient oxygen, CO as well as CO2 is formed. If the product contains 40% CO and 60% CO...