Open Question
A rigid vessel contains 2.5 mol of H2(g). How many grams of hydrogen are in the vessel?
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2. Atoms & Elements
Mole Concept
Back2. Atoms & Elements
Mole Concept
- Open Question
How many atoms are present in 0.375 mol of palladium (Pd) atoms?
578views - Open Question
One mole of copper(II) sulfate, CuSO4, contains ________ moles of O.
656views - Open Question
What is the mass in grams of 0.375 mol of the element potassium, K?
581views - Multiple ChoiceHow many molecules are there in 560g of silicon dioxide (SiO2)?311views
- Multiple ChoiceA compound containing only carbon and hydrogen has a carbon-to-hydrogen mass ratio of 11.89. Which of the following carbon-to-hydrogen mass ratios is possible for another compound composed only of carbon and hydrogen?470views
- Multiple ChoiceA solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water at 25°C. The final volume of the solution is 118 mL. The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, what is the concentration of methanol in terms of molarity?433views
- Multiple ChoiceHow many carbon atoms are present in 0.174 moles of carbon?507views
- Multiple ChoiceHow can you convert the mass of a substance to moles?486views
- Multiple ChoiceHow many aluminum atoms are there in 3.50 grams of Al₂O₃?482views
- Multiple ChoiceHow many atoms are in 4.78 moles of sulfur?301views
- Multiple ChoiceHow many formula units are in 8.38 g of LiOH?488views
- Multiple ChoiceHow many hydrogen atoms are in one formula unit of ammonium sulfate, (NH4)2SO4?439views
- Multiple ChoiceHow many iron atoms are contained in 354 g of iron, given that the molar mass of iron is 55.85 g/mol?503views
- Multiple ChoiceHow many molecules are in 68.6 moles of CO₂?466views