Keroro
08-09-2006, 11:49 AM
How many milliliters of 0.05 M HCl are required to turn 20 ml of 0.05 M KOH into a solution of pH 2.00?
A. 10
B. 15
C. 20
D. 25
E. 30
A. 10
B. 15
C. 20
D. 25
E. 30
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View Full Version : one gchem question from achiever Keroro 08-09-2006, 11:49 AM How many milliliters of 0.05 M HCl are required to turn 20 ml of 0.05 M KOH into a solution of pH 2.00? A. 10 B. 15 C. 20 D. 25 E. 30 marylanddds 08-09-2006, 11:59 AM How many milliliters of 0.05 M HCl are required to turn 20 ml of 0.05 M KOH into a solution of pH 2.00? A. 10 B. 15 C. 20 D. 25 E. 30 its a 2 step process. the answer is explained on acheiver. first neutralize, then make ph = 2 Keroro 08-09-2006, 12:05 PM (0.05M HCl ) x (x ml) = (0.01M HCl) x (40+x) x = 10 ? tom_servo_dds 08-09-2006, 12:06 PM How many milliliters of 0.05 M HCl are required to turn 20 ml of 0.05 M KOH into a solution of pH 2.00? A. 10 B. 15 C. 20 D. 25 E. 30 http://forums.studentdoctor.net/showthread.php?p=4003309 tom_servo_dds 08-09-2006, 12:07 PM (0.05M HCl ) x (x ml) = (0.01M HCl) x (40+x) x = 10 ? 10 + the 20 that you added to neutralize = 30. |