Multiple Choice
Which of the following is NOT an example of how the general solubility rules apply?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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According to solubility rules and typical laboratory data, what is the approximate mass of NH4Br (ammonium bromide) that can dissolve in 100 g of water at 80 °C?
A
About 35 g
B
About 200 g
C
About 10 g
D
About 105 g
Verified step by step guidance1
Identify the solubility data for NH4Br (ammonium bromide) at 80 °C from a reliable solubility chart or laboratory data. Solubility is usually given in grams of solute per 100 grams of water at a specific temperature.
Understand that the solubility value represents the maximum amount of NH4Br that can dissolve in 100 g of water at 80 °C to form a saturated solution.
Locate the solubility value for NH4Br at 80 °C, which is typically around 105 g per 100 g of water based on standard solubility tables.
Compare the given answer choices with the solubility value found in the data to determine which is closest to the actual solubility at 80 °C.
Conclude that the approximate mass of NH4Br that can dissolve in 100 g of water at 80 °C is about 105 g, as it matches the typical solubility data.
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