Question

Question 1

According to the following reaction, what mass of silver nitrate would be required to react with 0.500 grams of potassium chloride?

AgNO₃ (aq) + KCl (aq) --> AgCl (s) + KNO₃ (aq)

options

	2.68 g
	0.500 g
	85.0 g
	170 g
	1.14 g

Question 2

Consider the reaction:
Na₂CO₃ (aq)+ 2 HCl (aq) --> 2 NaCl (aq) + CO₂ (g) + H₂O (l)

If 43.41 g of sodium carbonate react completely, how many grams of HCl will be required? Report your answer to the correct number of significant figures.

Question 3

Consider the reaction below:
3 Ca(NO₃)₂ (aq) + 2 Na₃PO₄ (aq) --> Ca₃(PO₄)₂ (s) + 6 NaNO₃ (aq)

How many grams of Ca₃(PO₄)₂ will be produced if 6.55 g of Na₃PO₄ react completely? The molar mass of Na₃PO₄ is 163.94 g/mol and the molar mass of Ca₃(PO₄)₂ is 310.18 g/mol.

Enter your answer in decimal form rounded to the correct number of significant digits.

Question 4

Aqueous solutions of lead(II) nitrate and sodium chloride react to form solid lead(II) chloride and aqueous sodium nitrate according to the reaction below.

Pb(NO₃)₂ (aq) + 2 NaCl (aq) → 2 NaNO₃ (aq) + PbCl₂ (s)

What is the molarity of the sodium chloride solution if 75.0 mL of it will produce 6.49 g of the lead(II) chloride?

Question 5

Aqueous solutions of copper (II) bromide and silver (I) acetate react to form solid silver (I) bromide and aqueous copper (II) acetate according to the UNBALANCED reaction below.

CuBr₂ (aq) + AgCH₃CO₂ (aq) → AgBr (s) + Cu(CH₃CO₂)₂ (aq)

How many grams of silver (I) bromide will form if 50.0 mL of 0.143 M copper (II) bromide react with excess silver (I) acetate?

Question 6
How many milliliters of 0.385 M hydroiodic acid are required to nutralize 14.0 mL of 0.437 M strontium hydroxide according to the UNBALANCED reaction below?

HI (aq) + Sr(OH)₂ (aq) → SrI₂ (aq) + H₂O (l)

Answer 1

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