StoichiometryMole#Mole Concept86Choose the best answerWhat is the formula mass of an ionic compound called when expressed in grams?AGram atomic massBMolecular massCRelative atomic massDGram formula mass Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules87Choose the best answerHow many H₂ molecules are present in 0.20 g H₂? Molar mass of H₂ = 2.016 g mol⁻¹A(0.20/2.016) × 6.02 × 10²³B(2.016/0.20) × 6.02 × 10²³C0.20 × 1.008DNone of these Like 0 Discuss 0Share
StoichiometryAvogadro Constant88Choose the best answerNA, the Avogadro constant, is equal to the number of:AAtoms in 1 g HeBElectrons needed to deposit 24.3 g Mg from Mg²⁺CMolecules in 35.5 g Cl₂DAtoms in 24.3 g Mg Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Mole Concept#Stoichiometry89Choose the best answerMolarity of pure water is: (Sindh MDCAT 2019)A01B18C36D55.5 Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Physical and Chemical Changes#Stoichiometry90Choose the best answerWhich of the following is a reversible physical change?ACombustion of methaneBRusting of ironCMelting and freezing of waterDBurning of magnesium Like 0 Discuss 0Share