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1. Describe the preparation of the following solutions. Include calculations and necessary laboratory equipment.
a) 500 ml of a 1.50M KNO3 solution.
b) 150 g of a 5.0% solution of NaC2H3O2.
c) 500 ml of a 0.50M NaOH solution from a 6.0M NaOH solution.

2. Fifty milliliters of HNO3 affected 35.50mL of Ba (OH) 2 0.150M to neutralize. Determine the molarity of the acidic solution. Write the balanced equation.

3. A ten milliliter (10 ml) sample of a KBr solution has a mass of 12.60 g. When the solution evaporates, the residue weighs 3.80g. With these data they determine:
a) the density of the solution
b)% by mass of solute
c) the molarity of the solution

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1. Describa la preparación de las siguientes soluciones. Incluya los cálculos y el equipo de laboratorio necesario. a. 500 mL
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Answer #1

3-) Ans -> @) d- mass scute) Volume d = 3.80g = 0.38 gne- 10 me 6) % = Wsolute x 100 W solution 3.80 x 100 12.60 - (30.158) %

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