Practice Molar Mass (1.1) - Stoichiometry - IB 10 Sciences (Group 4)

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9 questions

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4 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the molar mass of carbon dioxide (CO₂)?
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Use the periodic table to find atomic masses.
Question 2.
How many grams are in 2 moles of water (H₂O)?
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Find the molar mass of water first.
3Question 3.
What is the molar mass of H₂O?
- 18.015 g/mol
- 16.00 g/mol
- 20.00 g/mol
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Remember to sum the molar masses of both hydrogen and oxygen.
4Question 4.
True or False: Molar mass allows for converting between grams and moles.
- True
- False
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Think about how it relates grams to moles.
Question 5.
You need to prepare a sodium chloride solution. If you have 58.44 g of NaCl, how many moles do you have?
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Use the molar mass of NaCl in the calculation.
Question 6.
If 2 moles of H₂ react with 1 mole of O₂, how many grams of water can be produced? Given that 1 mole of water weighs approximately 18 g.
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Remember to use stoichiometry and mole ratios.

5 more questions in this section. Enroll free to practise them all.