The molar mass of water is 17.02 g/mol

Question 1 (1 point)

The molar mass of water is 17.02 g/mol.

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Question 2 (1 point)

A mole of molecular hydrogen (H₂) has 6.022 × 10²³ atoms of hydrogen.

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Question 3 (1 point)

How many moles of NaCl are present in 20.0 g of NaCl?

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Question 4 (1 point)

Codeine (C₁₈H₂₁NO₃) is a painkiller. What is the molar mass of codeine?

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Question 5 (1 point)

What is the molar mass of MgCO₃?

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Question 6 (1 point)

How many moles of HNO₃ are present in 450 g of HNO₃?

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Question 7 (1 point)

How many moles of water are there in a sample that has a mass of 2.786 g?

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Question 8 (2 points)

How many moles of carbon are produced when 1745 g of glucose decomposes according to the following equation?

C₆H₁₂O₆ → 6C + 6H₂O

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Question 9 (2 points)

In the reaction Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O, how many grams of CO₂ are produced when 7.5 moles of HCl is fully reacted?

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Question 10 (2 points)

Consider the reaction: Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O. A minimum of _____ moles of sodium carbonate is needed to fully react with 750 g of HCl.

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Question 11 (2 points)

The following reaction describes the decomposition of glucose with sulfuric acid:
C₆H₁₂O₆ → 6C + 6H₂O. How many grams of carbon are produced when 22.6 grams of glucose is reacted?

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