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11Alexandr11 [23.1K]
3 years ago
8

Which of the following are major influences on weather and climate?

Chemistry
1 answer:
Soloha48 [4]3 years ago
6 0

Answer:

temputure climate distance from the eqauter.

Explanation:

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To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple _______. Then, plot ln(K
Aloiza [94]

Answer:

To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures. Then, plot ln(Ksp) vs. 1/T. The slope of the plotted line relates to the enthalpy (ΔH) of dissolving and the intercept of the plotted line relates to the entropy (ΔS) of dissolving.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us use the thermodynamic definition of the Gibbs free energy and its relationship with Ksp as follows:

\Delta G=-RTln(Ksp)\\\\\Delta G=\Delta H-T\Delta S

Thus, by combining them, we obtain:

-RTln(Ksp)=\Delta H-T\Delta S\\\\ln(Ksp)=-\frac{\Delta H}{RT} +\frac{T\Delta S}{RT} \\\\ln(Ksp)=-\frac{\Delta H}{RT} +\frac{\Delta S}{R}

Which is related to the general line equation:

y=mx+b

Whereas:

y=ln(Ksp)\\\\m=-\frac{\Delta H}{R} \\\\x=\frac{1}{T} \\\\b=\frac{\Delta S}{R}

It means that we answer to the blanks as follows:

To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures. Then, plot ln(Ksp) vs. 1/T. The slope of the plotted line relates to the enthalpy (ΔH) of dissolving and the intercept of the plotted line relates to the entropy (ΔS) of dissolving.

Regards!

8 0
2 years ago
All nonzero digits are significant.<br><br> TRUE OR FALST?
Scrat [10]

True, All non- zero digits are considered Significant.

3 0
3 years ago
Read 2 more answers
Write the dissociation equation for, and give the proper concentrations for a 0.25M K2SO4 solution
weeeeeb [17]

Answer: K_2SO_4\rightarrow 2K^++SO_4^{2-}

concentration of K^+  = 0.50 M

concentration of  SO_4^{2-} = 0.25 M

Explanation:

The dissociation equation of K_2SO_4 is:

K_2SO_4\rightarrow 2K^++SO_4^{2-}

According to stoichiometry:

1 mole of K_2SO_4 gives 2 moles of K^+

Thus 0.25 moles of K_2SO_4 gives =\frac{2}{1}\times 0.25=0.50 moles of K^+

Similarly,

1 mole of K_2SO_4 gives = 1 mole of SO_4^{2-}

Thus 0.25 moles of K_2SO_4 gives =\frac{1}{1}\times 0.25=0.25 moles of SO_4^{2-}

Thus the concentration of K^+ and SO_4^{2-} are 0.50 M and 0.25 M respectively.

8 0
3 years ago
St2 Second Laws
jeyben [28]

Answer: b. 606

Explanation:

7 0
2 years ago
Where does electron density lie on a carbonyl group
Alex Ar [27]

Answer:

at the oxygen end electron density lies

Explanation:

Carbonyl group is a functional group which is formed when oxygen combined with carbon through a double bond

So the carbonyl group is C=O  in this the oxygen has more electronegativity than carbon so oxygen attracts the electron density towards itself

So the electron density lies on the oxygen in a carbonyl group

4 0
3 years ago
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