Mole ConceptHard
Question
X and Y are two elements which form X2 Y3 and X3Y4. If 0.20 mol of X2Y3 weighs 32.0 g and 0.4 mol of X3Y4 weighs 92.8 g, the atomic weights of X and Y are respectively
Options
A.16.0 and 56.0
B.8.0 and 28.0
C.56.0 and 16.0
D.28.0 and 8.0
More Mole Concept Questions
1021 molecules are removed from 200mg of CO2. The moles of CO2 left are :...Two elements A and B combine to form compound X and Y. For the fixed mass of A, masses of B combined for the compounds X...A quantity of 0.25 g of a substance when vaporized displaced 50 cm3 of air at 0o C and 1 atm. The gram molecular mass of...Total number of valence electrons present in 6.4 g peroxides ion (O2 2–) is...The commonly used pain reliever, aspirin, has the molecular formula C9H8O4. If a sample of aspirin contains 0.968 g of c...