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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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fishhunter8 fishhunter8
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11 years ago
A solution of HCl has a pH of 4.1. What is the hydronium ion concentration of this solution?

Note: Give your answer in scientific notation with one decimal place.

 A. 2.6 x 10-5
B. 4.0 x 10-6
C. 7.9 x 10-5
D. 6.4 x 10-10
 E. 4.4 x 10-7

Hope Someone Can help me Slight Smile
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#1
11 years ago
pH is simply the negative logarithm of the hydronium ion concentration.
Do the antilog of -4.1 to get the concentration of hydronium ions.
C. 7.9 x 10-5
Answer accepted by topic starter
lizbethlizbeth
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#2
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11 years ago
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