The photograph shows the most abundant substance on Earth's su Which fact about this substance tells you that it is a compound?
2 answers:
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Answer:
Explanation:
[H+] = 4.7 x 10⁻⁵ M
[H+][OH⁻] = 10⁻¹⁴
[OH⁻] =
= .2127 x 10⁻⁹ M
pH = - log[H+]
= - log [ 4.7 x 10⁻⁵]
= - log4.7 + 5
= 4.328
pH + pOH = 14
pOH = 14 - pH
= 14 - 4.328
= 9.672
Answer:
Explanation:
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In this case, since the by-mass percent is defined by:
Thus, since the given 1.77 M solution is given in terms of mol/L, we need to compute the mass of acetone via its molar mass and the volume of solution in L to g via the density:
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