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

The maximum number of molecules is present in

4 g of copper was dissolved in concentrated nitric acid. The copper nitrate on strong heating gave 5 g of its oxide. The equivalent weight of copper is 

Number of atom of oxygen present in 10.6 g Na₂CO₃ will be 

A sample of phosphorous trichloride (PCl₃) contains 1.4 moles of the substance. How many atoms are there is the sample?   

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

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  

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? 

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? 

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

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