Question 1

What is the pH of the solution that is prepared by dissolving 0.62g of Na₂O in enough water to make 1.0L?

(A) 10.3

(B) 11.3

(C) 12.3

(D) none of the above

Your response

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Question 2

How many grams of Na₂O is needed to make a 1.0L solution that has a pH=13.0?

(A) 1.30g

(B) 3.10g

(C) 5.50g

(D) none of the above

Your response

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Question 3

What is the pH of the solution that is prepared by dissolving 0.56g of CaO in the water to make 1.0L?

(A) 11.3

(B) 12.3

(C) 13.3

(D) none of the above

Your response

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Question 4

How many grams of CaO is needed to make a 1.0L solution that has a pH = 13.0?

(A) 1.80g

(B) 2.80g

(C) 3.80g

(D) none of the above

Your response

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Question 5

If 100.0ml of the solution in Q4 is transferred to a 500.0ml container, and plenty water was added to fill it up, what is the pH of the solution?

(A) 12.3

(B) 12.0

(C) 11.0

(D) none of the above

Your response

Not answered yet