4.Marianne has a bag containing 100 g worth of peso coins. How manygrams of copper are in this bag containing 65% copper by mass? 0.50g b.65 g 0.75 g d.70g
5. What happens to concentration level of a solution if you increase the amount of its solute? o increase c.remains the same b. decrease d. diluted
6. A glucose solution is 30% mass. How much glucose and water has 100 g of solution? a. 30 g glucose and 70 g water c. 30 kg glucose and 70 kg water b.70 g glucose and 30 g water d. 70 kg glucose and 30k g water
7. What happens to concentration level of a solution if you decrease the amount of its solute? a. increase c. remains the same b. decrease d. diluted
8-10. Why is it important to know the concentration of solution? How is it important in daily living?
5. What happens to concentration level of a solution if you increase the amount of its solute? o increase c.remains the same b. decrease d. diluted
6. A glucose solution is 30% mass. How much glucose and water has 100 g of solution? a. 30 g glucose and 70 g water c. 30 kg glucose and 70 kg water b.70 g glucose and 30 g water d. 70 kg glucose and 30k g water
7. What happens to concentration level of a solution if you decrease the amount of its solute? a. increase c. remains the same b. decrease d. diluted
8-10. Why is it important to know the concentration of solution? How is it important in daily living?
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Answer:
4.b
5.d
6. b
7. b
8-10
The concentration of a solute is very important in studying chemical reactions because it determines how often molecules collide in solution and thus indirectly determines the rates of reactions and the conditions at equilibrium (see chemical equilibrium). Concentration may be expressed in a number of ways.
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