Mole Concepts Quiz

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Mole concepts & gas volumes quiz.

Aphile

South Africa

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Mole Concepts Quiz


Mole Concepts QuizVersion en ligne Mole concepts & gas volumes quiz. par Aphile 1 What is the amount of substance containing 6.02 × 10^23 particles called? a One liter b One gram c One mole d One molecule 2 What is the molar mass of carbon dioxide (CO2)? a 28.97 g/mol b 44.01 g/mol c 58.44 g/mol d 12.01 g/mol 3 What is the molar mass of NaCl? a 22.99 g/mol b 58.44 g/mol c 16.45 g/mol d 35.45 g/mol 4 Which statement best defines molarity? a Liters of solution per mole of solute b Moles of solute per liter of solution c Moles of solvent per liter of solution d Mass of solute per liter of solution 5 Calculate molarity if 0.5 mol of solute is dissolved in 2.0 L of solution. a 0.1 M b 0.5 M c 0.25 M d 2.0 M 6 If you dilute 0.5 L of a 2.0 M solution to 5.0 L, what is the new concentration? a 0.20 M b 2.0 M c 0.50 M d 1.0 M 7 At STP, one mole of any ideal gas occupies how many liters? a 22.0 L b 44.8 L c 22.4 L d 24.0 L 8 How many liters does 0.5 mol of gas occupy at STP? a 44.8 L b 5.6 L c 22.4 L d 11.2 L 9 Which equation correctly relates mass m, moles n, and molar mass M? a n = mM b M = n/m c m = M/n d m = nM 10 How many formula units are in 1 mole of NaCl? a 6.02 × 10^23 formula units b 6.02 × 10^24 formula units c 6.02 × 10^20 formula units d 6.02 × 10^22 formula units