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Nana76 [90]
3 years ago
15

In calculating the equilibrium constant for a reaction, the coefficients of the chemical equation are used as exponents for the

factors in the equilibrium expression. TRUE FALSE
Chemistry
1 answer:
BartSMP [9]3 years ago
7 0

Answer: The given statement is TRUE.

Explanation:

An equilibrium reaction is one in which rate of forward reaction is equal to the rate of backward reaction.

Equilibrium constant is defined as the ratio of the product of the concentration of products to the product of the concentration of reactants each raised to their stochiometric coefficient.

For example for the given equilibrium reaction;

2H_2O(g)\leftrightharpoons 2H_2(g)+O_2(g)

K_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}

Thus the given statement that in calculating the equilibrium constant for a reaction, the coefficients of the chemical equation are used as exponents for the factors in the equilibrium expression is True.

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Which of these is the strongest acid?
sergejj [24]

Answer: D

Explanation:

8 0
3 years ago
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The radioactivity due to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 co
bekas [8.4K]

Answer:

17202.6 years

Explanation:

Activity of the living sample (Ao) = 160 counts per minute

Activity of the wood sample (A) = 20 counts per minute

Half life of carbon-14 = 5730 years

t= age of the artifact

From;

0.693/t1/2= 2.303/t log Ao/A

Then;

0.693/ 5730= 2.303/t log Ao/A

Substituting values;

0.693/5730= 2.303/t log (160/20)

Then we obtain;

1.209×10^-4 = 2.0798/t

t= 2.0798/1.209×10^-4

Thus;

t= 17202.6 years

Therefore the artifact is 17202.6 years old.

3 0
3 years ago
A laboratory experiment requires 2.25 L of a 1.0 M solution of phosphoric acid (H3PO4), but the only available H3PO4 is a 9.0 M
Ksenya-84 [330]
The solution needed is prepared  as below

by use of the   M1V1 =M2 V2  formula  where
M1 = 2.25 L
v2 = 1.0M
M2 = 9.0 M
V2 =? l

make V2  the subject of the formula  V2 =M1V1/M2

= 2.25 L x  1.0M/9.0 M  = 0. 25 L

therefore  the solution  need  0.25 L  of   9.0M H3PO4   and  dilute it a final volume  of 2.25 l 
6 0
3 years ago
Read 2 more answers
How to do it???????????
amm1812

Tempratures

1. -60 C = 213.15 K

2. 250 C= 523.15 K

3. 365 K = 91.85 C

4. 205 K = -68.15 C

Pressures

1. 22.0 inches Hg = 558.8 mm Hg

2. 3.4 atm = 2584 mm Hg

3. 680 mm Hg = 0.894737 atm

4. 785 mm Hg = 104.658 kPa

Hope this helped! Please mark as brainliest! Thanks!

Although It showes I'm a begginer, I was An Ace, till my account got deleted.

My name was Sorry14.

4 0
3 years ago
No links plz!!<br>CaOCl2 parent acid and base???​
Vesnalui [34]

Answer:

this is not and reaction of acid and base.(CaOCL2)

Explanation:

Ca2, Cl, are base and O is a neutral.

so how can that be a acid and base reaction

4 0
3 years ago
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