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WorksheetsLU2 - Stoichiometry (Part 1)
Total questions: 10
Worksheet time: 13mins
How many number of particles are in 0.25 moles of CO2 molecules?
1.505 x 1023
6.025 x 1023
1.00
0.25
What is the mass of 1 mol of NaCl compound?
23.3 g
35.5 g
58.5 g
94.0 g
What is the volume of 0.5 moles of hydrogen if oxygen and nitrogen gas, all occupy a volume of 22.4 L at STP?
5.60 L
11. 20 L
22.4 L
24.0 L
What is the molar mass of (NH4)3PO4 ?
149.1 gmol-1
149 g
242 gmol-1
242 g
Calculate the mass of 3 x 1023 copper atoms.
31.6 g
31. 8 g
127.4 g
127.5 g
What is molarity of 6.16 g of NaOH in 50 mL of solution?
2.10 M
0.10 M
3.08 M
0.003 M
Concentrated of hydrochloric acid is 12.0M. What volume of concentrated hydrochloric acid is required to prepare 4.50L of 1.80 M HCl?
148 mL
675 mL
30 mL
0.0675 mL
What is the volume occupied by 2.50 g of carbon monoxide, CO gas at RTP?
2 L
2.14 L
1.27 L
2.08 L
Calculate the number of hydrogen atoms in 124.8 g of methane, CH4.
6.02 x 1023 atoms
2.35 x 1025 atoms
4.70 x 1024 atoms
1.88 x 1025 atoms
How many grams of solute are present in 700 mL of an aqueous solution of 0.5M KOH?
28 g
39.2 g
19.6 g
50.2 g
