Focus On Earth Science: California Grade 6

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1			Which pH changes could not be made using 2.1 pounds of aluminum sulfate? Need a Hint?
			A)	6.0 to 7.0
			B)	7.5 to 6.0
			C)	7.0 to 5.5
			D)	6.0 to 4.5
2			How much more aluminum sulfate would be needed to lower the pH from 8.0 to 5.5 than to lower the pH from 8.0 to 6.0? Need a Hint?
			A)	3.3 pounds
			B)	0.9 pounds
			C)	2.4 pounds
			D)	5.7 pounds
3			Which pH change could be made using 4.8 pounds of aluminum sulfate? Need a Hint?
			A)	8.0 to 4.5
			B)	7.5 to 4.5
			C)	7.5 to 5.0
			D)	7.0 to 4.5
4			How much less aluminum sulfate would be needed to lower the pH from 7.0 to 6.0 than to lower the pH from 6.5 to 5.5? Need a Hint?
			A)	2.7 pounds
			B)	1.2 pounds
			C)	1.5 pounds
			D)	0.3 pounds
5			Which pH change could be made using 3.0 pounds of aluminum sulfate? Need a Hint?
			A)	8.0 to 5.0
			B)	7.5 to 6.0
			C)	7.0 to 5.0
			D)	7.5 to 4.5
6			How much less aluminum sulfate would be needed to lower the pH from 6.5 to 4.5 than to lower the pH from 6.5 to 5.5? Need a Hint?
			A)	1.2 pounds
			B)	2.7 pounds
			C)	1.5 pounds
			D)	4.2 pounds
7			How much more aluminum sulfate would be needed to lower the pH from 7.0 to 4.5 than to lower the pH from 7.0 to 5.0? Need a Hint?
			A)	3.6 pounds
			B)	0.6 pounds
			C)	3.0 pounds
			D)	6.6 pounds
8			How much more aluminum sulfate would be needed to lower the pH from 8.0 to 4.5 than to lower the pH from 8.0 to 6.5? Need a Hint?
			A)	1.8 pounds
			B)	4.8 pounds
			C)	3.0 pounds
			D)	6.6 pounds
9			How much more aluminum sulfate would be needed to lower the pH from 7.0 to 5.5 than to lower the pH from 7.0 to 6.0? Need a Hint?
			A)	0.9 pounds
			B)	2.1 pounds
			C)	1.2 pounds
			D)	3.3 pounds
10			How much more aluminum sulfate would be needed to lower the pH from 7.0 to 5.0 than to lower the pH from 7.0 to 5.5? Need a Hint?
			A)	3.0 pounds
			B)	0.9 pounds
			C)	2.1 pounds
			D)	5.1 pounds