3 years ago

The proportion of dissolved substances in seawater is usually expressed in

Chemistry

1 answer:

omeli [17]3 years ago

5 0

B. Parts per thousand.

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If a gaseous mixture is made by combining 2.74 g Ar 2.74 g Ar and 4.90 g Kr 4.90 g Kr in an evacuated 2.50 L container at 25.0 ∘

krok68 [10]

Answer:

Hfhfj

Explanation:

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2 years ago

Determine the value of the equilibrium constant, Kgoal, for the reactionN2(g)+H2O(g)⇌NO(g)+12N2H4(g), Kgoal=?by making use of th

Black_prince [1.1K]

Answer:

$K_{goal}=1.793*10^{-33}$

Explanation:

N2(g)+O2(g)⇌2NO(g), $K_1 = 4.10*10^{-31}$

N2(g)+2H2(g)⇌N2H4(g), $K_2 = 7.40*10^{-26}$

2H2O(g)⇌2H2(g)+O2(g), $K_3 = 1.06*10^{-10}$

If we add above reaction we will get:

2N2(g)+2H2O(g)⇌2NO(g)+N2H4(g) Eq (1)

Equilibrium constant for Eq (1) is $K_1*K_3*K_3$

Divide Eq (1) by 2, it will become:

N2(g)+H2O(g)⇌NO(g)+1/2N2H4(g) Eq (2)

Equilibrium constant for Eq (2) is $(K_1*K_3*K_3)^{1/2}$

$Equilibrium constant =K_{goal}= (K_1*K_2*K_3)^{1/2}\\K_{goal}= (4.10*10^{-31} *7.40*10^{-26}*1.06*10^{-10})^{1/2}\\K_{goal}=1.793*10^{-33}$

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3 years ago

You apply 100.0 of force to a machine. The machine applies 20.0 N of force to the load. What is the mechanical advantage of the

rjkz [21]

MA= output force/input force
MA= 100N/20N
MA= 50

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3 years ago

Why does 10g Nitrogen gas contain the same number of molecules as 10 g of carbon monoxide

icang [17]

Answer:

$\fbox\colorbox{cyan}{❥i \: hope \: it \: help \: you}$

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3 years ago

Read 2 more answers

Which of the following is NOT true about nuclear fusion?

inysia [295]

<u>Answer:</u>

I think it's (C)

The products are suitable for making nuclear weapons.

hope this helps!

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3 years ago