What mass (g) of AgBr is formed when 41.8 mL of 0.152 M AgNO3 is treated with an excess of aqueous hydrobromic acid?

Question

Chemistry

Hayley Cross

13 February, 15:20

What mass (g) of AgBr is formed when 41.8 mL of 0.152 M AgNO3 is treated with an excess of aqueous hydrobromic acid?

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Answers (1)

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Barrett Chambers · Answer 1

m AgBr = 1.193 g

Explanation:

AgNO3 + HBr → AgBr + HNO3

∴ V AgNO3 = 41.8 mL = 0.0418 L

∴ [ AgNO3 ] = 0.152 mol/L

∴ Mw AgBr = 187.77 g/mol

⇒ n AgNO3 = (0.0418 L) (0.152 mol/L) = 6.3536 E-3 mol AgNO3

⇒ n AgBr = (6.3536 E-3 mol AgNO3) (mol AgBr/mol AgNO3) = 6.3536 E-3 mol AgBr

⇒ m AgBr = (6.3536 E-3 mol AgBr) (187.77 g/mol) = 1.193 g AgBr