Avogadro’s Number represents:, 6.022 x 1023, 6.022 x 1024, 2.066 x 1023, 6.022 x 10-23, Ethene contains 85.72% carbon and 14.28% hydrogen. The empirical formula is:, CH, CH₂, CH₃, C₂H₄, A compound has the molecular formula C₆H₁₂O₆. Its empirical formula is:, CH₂O, C₂H₄O₂, CH₃O, C₃H₆O₃, One mole of hydrogen atoms (H) weighs:, 2 g, 1 g, 12 g, 22.4 g, 2 mole of carbon atoms (C) weighs:, 2 g, 1 g, 12 g, 24 g, The relative molecular mass (RMM) of HCl (H = 1, Cl = 35.45) is:, 34.45, 35.45, 36.45, 37.45, The molar volume of any gas at STP is:, 22.4 mL, 22.4 L, 24.4 L, 2.24 L, Molarity is defined as:, Moles of solute per kg of solvent, Moles of solute per L of solution, Grams of solute per L of solution, Moles of solute per mL of solvent, What is the molarity of a solution containing 2 mol of NaOH in 4 L of solution?, 1 M, 0.5 M, 2 M, 8 M, What is the mass percent of oxygen in Fe₂O₃? [RAM: Fe=56, O=16], 30%, 48%, 70%, 72%, A compound is 40% C, 6.67% H, and 53.33% O by mass. What is its empirical formula? [RAM: C=12, H=1, O=16], CH₂O, C2H4O4, CHO, C₃H₆O₃.

Chapter 3 p1

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