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Vera_Pavlovna [14]
2 years ago
12

Remember that c is always about 300,000 km/s. Use the formula you identified to explain how the two factors in the formula are r

elated on the electromagnetic spectrum.
Chemistry
1 answer:
Korvikt [17]2 years ago
8 0

Answer:

Explanation:Remember that c is always about 300,000 km/s. Use the formula you identified to explain how the two factors in the formula are related on the electromagnetic spectrum.

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An interesting enzyme, whose molecular weight is 56,000 g/mol, is used in catalytic amounts to cleave a membrane protein, whose
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65,000 g/mol,  43,000g/mol and 22,000 g/mol.

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If you were asked to run Spartan calculations on the C2H3O2-/H3O ion pair, the trend in the resulting data points would appear s
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a. True

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3 years ago
(Help!) What is the mass of hydrogen atoms that is measured at 72 u?​
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Answer:

=71.439911 u

Explanation:

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6 0
2 years ago
Read 2 more answers
Kc for the reaction of hydrogen and iodine to produce hydrogen iodide.
tatiyna

Answer:

[H_2]_{eq}=0.183M

[I_2]_{eq}=0.183M

[HI]_{eq}=0.025M

Explanation:

Hello.

In this case, for this equilibrium problem, we first realize that at the beginning there is just HI, it means that the reaction should be rewritten as follows:

2HI\rightleftharpoons H_2+I_2

Whereas the law of mass action (equilibrium expression) is:

Kc=\frac{[H_2][I_2]}{[HI]^2}

That in terms of initial concentrations and reaction extent or change x turns out:

Kc=\frac{x*x}{([HI]_0-2x)^2}\\\\54.3=\frac{x^2}{(0.391M-2x)^2}

And the solution via solver or quadratic equation is:

x_1=0.183M\\\\x_2=0.210M

Whereas the correct answer is 0.183 M since the other value yield a negative concentration of HI at equilibrium (0.391-2*0.210=-0.029M).This, the equilibrium concentrations are:

[H_2]_{eq}=0.183M

[I_2]_{eq}=0.183M

[HI]_{eq}=0.391M-2*0.183M=0.025M

Regards.

6 0
3 years ago
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