## Question

### Solution

Correct option is 1 mol of Mg3(PO4)2 ≡ 8 moles of O-atoms,  #### SIMILAR QUESTIONS

Q1

A gas mixture contains 50% helium and 50% methane by volume. What is the percent by weight of methane in the mixture?

Q2

116 mg of a compound on vaporisation in a victor Meyer’s apparatus displace 44.8 mL of air measured at STP. The molecular weight of the compound is

Q3

100 g CaCO3 is treated with 1 litre of 1 N HCl. What would be the weight of CO2 liberated after the completion of the reaction?

Q4

If we consider that , in place of , mass of carbon atom is taken to be relative atomic mass unit, the mass of one mole of a substance will

Q5

For the formation of 3.65 g of hydrogen chloride gas, what volumes of hydrogen gas and chlorine gas are required at N.T.P. conditions?

Q6

An alkaloid contains 17.28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of the alkaloid is

Q7

If 30mL H2 and 20mL of O2 react to form water, what is left at the end of the reaction?

Q8

The decomposition of a certain mass CaCO3 gave 11.2 dm3 of CO2 gas at STP. The mass of KOH required to completely neutralize the gas is

Q9

1.520 g of hydroxide of a metal on ignition gave 0.995 g of oxide. The equivalent weight of the metal is

Q10

The number of g-atom of oxygen in CO molecules is