Potter Bob
04/26/2023 · Middle School

Q6. How much more NaCl solute must be added to keep the foliowing solutions saturated at \( 10^{\circ} \mathrm{C} \) to 80 \( { }^{\circ} \mathrm{C} \) ? (2 marks) Q7. How much solute will precipitate/crystailize out from \( \mathrm{NH}_{4} \mathrm{Cl} \) if it was cooled from \( 90^{\circ} \mathrm{C} \) to \( 50^{\circ} \mathrm{C} \) ? (2 marks) Q8. How many grams of NaCl solute are needed to make a saturated solution at \( 80^{\circ} \) in: \( \mathbf{5 0} \) grams of \( \mathrm{H}_{2} \mathrm{O} \) ? (2 marks)

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Q6: Add 3.5 g of NaCl. Q7: 20 g of NH₄Cl will precipitate. Q8: 19.6 g of NaCl is needed.

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