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solniwko [45]
3 years ago
10

What factors affect the rate of dissolving a solid in a liquid? Explain...

Chemistry
1 answer:
tester [92]3 years ago
4 0

stirring, temperature, and particle size

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If a buffer solution is 0.130 M in a weak acid (K_a = 1.7 x 10^-5) and 0.590 M in its conjugate base, what is the pH?
Serggg [28]
Use the Henderson-Hasselbach equation:
pH = pKa + log[base]/[acid]
pH = -log(1.7 x 10^-5) + log(0.590/0.130) = 5.43
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2 years ago
How many moles of aluminum are equivalent to 4.816x10^24 atoms? 12.5 8 1.25 0.8
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Answer:

8

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1 mole = 6.02 × 10²³ atoms

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? Moles = 8 moles

8 moles of aluminum = 4.816 × 10²⁴

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mariarad [96]
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