Nature, Concentration, and Volume of Solutions (HSC SSCE Chemistry): Quizzes

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Nature, Concentration, and Volume of Solutions
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In a solution, what is the solvent?

Substance present in larger amount

When sugar dissolves in water, why don't the sugar molecules settle out?

Particles are molecular level size

What happens when sodium chloride (NaCl\text{NaCl}) dissolves in water?

Separates into Na+\text{Na}^+ & Cl\text{Cl}^-

What does 5%5\% (w/v)(\text{w}/\text{v}) concentration mean?

5 g5\text{ g} solute in 100 mL100\text{ mL} soln

What volume of alcohol is in 750 mL750\text{ mL} of 14%14\% (v/v)(\text{v}/\text{v}) wine?

105 mL105\text{ mL}

What does 500 ppm500\text{ ppm} mercury mean?

500 g500\text{ g} per million grams soln

Which glassware has the lowest accuracy at ±5%\pm 5\%?

Measuring cylinder

Which equipment is best for making solutions of known concentration?

Volumetric flask

Where should you read the meniscus in volumetric glassware?

Bottom of meniscus at eye level

A solution with 60 g/100 mL60\text{ g}/100\text{ mL} would be classified as:

Concentrated

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