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Strike441 [17]
3 years ago
12

The conversion of ammonium cyanide to urea is a second-order reaction. This means that the concentration C of ammonium cyanide a

t time t is given by 1/C = kt + 1/C0, where C0 is the initial concentration and k is the rate constant. Assume the initial concentration is known to be 0.1 mol/L exactly. Assume that time can be measured with negligible uncertainty.
a. After 45 minutes, the concentration of ammonium cyanide is measured to be 0.0811 ? 0.0005 mol/L. Estimate the rat? constant k, and find the uncertainty in the estimate.

b. Use the result in part (a) to estimate the time when the concentration of ammonium cyanide will be 0.0750 mol/L, and find the uncertainty in this estimate.
Mathematics
1 answer:
sergejj [24]3 years ago
6 0

Answer:

your answer could be A

Step-by-step explanation:

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Answer:

5 1/3 x+8 1/2 =3 1/3 ?

the correct answer is -1.774

Step-by-step explanation:

51/3x + 81/2=31/3 In order to find x, we follow BODMAS rule

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51x/3= 2[31} - 3{81}/6

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51x/3= -181\6

by using cross multiplication

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NemiM [27]

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Step-by-step explanation:

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mrs_skeptik [129]

Answer:

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