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m_a_m_a [10]
3 years ago
6

A chemist have to fill a 500 mL beaker with saturated solution of sodium nitrate and water at room temperature. How could the ch

emist increase the concentration of sodium nitrate in the solution
A) pour out some of the solution from the beaker, then add pure water
B) add more sodium nitrate to the beaker and raise the temperature
C) pour out some of the solution from the beaker
D) add more sodium nitrate to the beaker and decrease the temperature
Chemistry
2 answers:
geniusboy [140]3 years ago
7 0

Answer:

pour out some of the solution from the beaker

Oksi-84 [34.3K]3 years ago
3 0

Answer:

c

Explanation:

gradpoint

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<h3>A.</h3>

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3 0
3 years ago
The two naturally occurring isotopes of antimony, 121Sb (57.21 percent) and 123Sb (42.79 percent), have masses of 120.904 and 12
Alex

Answer:

The correct answer is option c.

Explanation:

Formula used to determine an average atomic mass :

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i

Mass of isotope Sb-121 = 120.904 amu

Fractional abundance of Sb-121 = 57.21% = 0.5721

Mass of isotope Sb-123 = 122.904 amu

Fractional abundance of Sb-123 = 42.79% = 0.4279

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120.904 amu\times 0.5721+ 122.904 amu\times 0.4279=121.7598 amu \approx 121.76 amu

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3 years ago
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Which will cause the value of the equilibrium constant to change? (2 points)
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answer

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