Related FAQs

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• Suppose 0.458 g of potassium chloride is dissolved in 150. ml of a 77.0 mm aqueous solution of ammonium sulfate.rnrncalculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the potassium chloride is dissolved in it.rnrnround your answer to 3 significant digits.
• Suppose 12.7 g of iron(ii) bromide is dissolved in 250. ml of a 0.60 m aqueous solution of silver nitrate.rnrncalculate the final molarity of iron(ii) cation in the solution. You can assume the volume of the solution doesn't change when the iron(ii) bromide is dissolved in it.rnrnround your answer to 3 significant digits.
• Suppose 0.987 g of nickel(ii) chloride is dissolved in 150. ml of a 68.0 mm aqueous solution of potassium carbonate.rnrncalculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the nickel(ii) chloride is dissolved in it.rnrnround your answer to 3 significant digits.
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• In recrystallisation of benzoic acid,you know the first step is to dissolve imppure benzoic acid into a solvent typically water for benzoic acid. so in the first step we make solution of impure benzoic acid. The question is that the solution we made in the first step should be called saturated or supersaturated solution?
• 1. The chemical equation for the formation of water is 2h2 + o2 →2h2o. rnrna. if 3.3 mol o2 are used, how many moles of h2 are needed?rnrnb. How many moles o2 must react with excess h2 to form 6.72 mol H2O? rnrnc. if you wanted to make 8.12 mol H2O, how many moles of h2 would you need?