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Blizzard [7]
3 years ago
5

When Wolverine’s 10-pound adamantium claws are dissolved in 100 mL of 10 M nitric acid, 10.7 grams of adamantium nitrate are rec

overed. If we expected 15.0 grams of adamantium nitrate to be recovered in a complete reaction, what was the percent yield?
Chemistry
1 answer:
Mazyrski [523]3 years ago
7 0

The percent yield is 71.3 %.

Explanation:

Percent yield is the measure to analyze the success percentage of any experiment .The percent yield of any experiment can be obtained by the ratio of actual or experimental value to expected or theoretical value multiplied with 100.

Percent Yield = \frac{Experimental Outcome}{Theoretical Outcome} *100

So, in the present problem, we have obtained 10.7 g of adamantium nitrate from Wolverine's 10 pound claws. So the actual value or the experimental value is the amount of adamantium nitrate obtained from Wolverine's claws.

Thus, the experimental outcome is 10.7 g. While we had expected to recover 15 g of adamantium nitrate. So the theoretical outcome is 15 g.

Percent yield = \frac{10.7}{15} * 100 = 71.3 %

Thus, the percent yield is 71.3 %.

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If a temperature increase from 12. 0 °C to 20. 0 °C doubles the rate constant for a reaction. What is the value of the activatio
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If a temperature increase from 12. 0 °C to 20. 0 °C doubles the rate constant for a reaction. What is the value of the activation barrier for the reaction is 60.155KJ/mol.

<h3>What is activation energy? </h3>

Activation energy is defined as the minimum amount of energy required by molecules to occur a chemical reaction. It is denoted by Ea.

Given,

T1 = 12+273 = 285K

T2 = 20 +273 = 293K

Rate constant = k2/k1 = 2:1

Using arrhenius equation which give relationship between constant of reaction and temperature is

In(k2/k1) = Ea/(R[1/T1 - 1/T2]

where, Ea is the activation energy

and R is the gas constant

T1 is the initial temperature

T2 is the final temperature

In2= Ea/R[(1/285) - (1/293)]

Ea = In2 × 8.314 ×285×293/8

Ea = 0.301 ×8.314 ×285×293/8

Ea = 60155J/mol

Ea = 60.155KJ/mol.

Thus we calculated that the activation energy for a reaction at 12°C to 20°C is 60.155KJ/mol.

learn more about activation energy:

brainly.com/question/2410158

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6 0
2 years ago
An element X exists in three forms A, B and C in the ratio 1:2:3. If C has 10 protonsand the number of neutrons in A, B and C ar
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x21 +ANSWER

(i) Ne-22

(ii)1s2s22p6

(iii)21.3

An element X exists in three forms A, B and C in the ratio 1:2:3. If C has 10 protons and the number of neutrons in A, B and C are 10, 11 and 12 respectively,Give the following:(i) Representation of form C of the element X(ii) Electronic configuration of form B of the element(iii) Calculate the average atomic mass.

(i)C  has 10 protons and 12 neutrons so a mass of 10 +12 =22

element 10 is Neon (Ne) so this isotope is Ne-22

(ii) they all have the sane atomic number so the same number of electrons

with an electronic structure of 1s2s22p6

(iii) A weighs 20, B weighs 21, C weighs 22

the ratio is 1:2:3

weighted average weight is therefor

(1X20 +2X21 +3X22)/6 =21.3

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Answer:

the most basic way i can put it is..

Explanation:

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