Chemistry, 24.06.2019 10:00 mimireds8573
Suppose you wanted to make a buffer of exactly ph 7.00 using kh2po4 and na2hpo4. if the final solution was 0.10 m in kh2po4, what concentration of na2hpo4 would you need? (pka for h3po4, h2po−4, and hpo2−4 are 2.14, 6.86, and 12.40, respectively.)
Answers: 1
Chemistry, 21.06.2019 17:30
Given that the molar mass of nano3 is 85.00 g/mol, what mass of nano3 is needed to make 4.50 l of a 1.50 m nano3solution? use .6.75 g18.9 g255 g574 g
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Chemistry, 22.06.2019 00:00
What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17
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Chemistry, 22.06.2019 11:00
The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
Answers: 1
Suppose you wanted to make a buffer of exactly ph 7.00 using kh2po4 and na2hpo4. if the final soluti...
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