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seraphim [82]
3 years ago
14

In your lab you are studying the kinetics of the degradation of a pain killer in the human liver. You are monitoring the concent

ration of the pain killer over a period of time. The initial concentration of the pain killer in your experiment was 1.59 M. After 0.80881 hours the concentration was found to be 0.795 M. In another 0.80881 hours the concentration was found to be 0.3975 M (t=27.868 hours overall).
If another experiment were set up where the initial concentration of the pain killer was 0.479 M, how long would it take for the pain killer concentration to reach 0.0161 M?
Chemistry
1 answer:
MissTica3 years ago
4 0

Answer:

Explanation:

From the data it is clear that after each .80881 hours , the concentration becomes half . so its decomposition appears to be first order .

k = 1 / t ln A₀ / A

= (1/.80881) ln 2

= .857

for the given case

A = .0161 , A₀ = .479

t = ?

t = 1/k ln( .479 / .0161)

= (1 / .857 )ln (.479 / .0161 )

= (1 / .857 ) x ln 29.75

= 3.959 hours

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Combine magnesium metal and hydrochloric acid solution. Mg + HCl →
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Answer:

See below.

Explanation:

This will give magnesium chloride solution and hydrogen gas will evolve.

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3 0
3 years ago
This graph shows two curves pertaining to a hydrogen s orbital.
fgiga [73]

Answer 1) : According to the complete question attached in the answer,

The radial wave function  which is denoted by R_{nl}(r) shown with orange color crosses through zero point. Also, At the the radial nodes, which are spherical shells to some radial distance away from the nucleus there no electron are found.

Also, the radial probability distribution curve denoted as R^{2}_{nl}(r) shown in  blue  color is observed to touch zero, and shows the place of radial node.

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It is observed that for any atomic orbital, the total number of nodes will be n-1  .


Considering the s orbital of the hydrogen, which has zero angular momentum  (l); (l=0), as it has zero angular nodes.  

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Answer 2) The radial nodes are observed in I'm seeing radial nodes at  

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Explanation : It is quite easy to observe the given graph and find out the approximate values of the radial nodes, it does not requires any equation to be solved. Equation can be used to find the radial nodes if it was supplied along with the question. Although by mere speculation one can find out the answer.

3 0
3 years ago
Read 2 more answers
Using the equation MgCl2 -&gt; Mg + Cl2, if 5.00 grams of MgCl2 is given, how many grams of Mg is produced?
motikmotik

Answer:

MgCl2-> Mg+Cl

mass 5.00g Mass=1.263g

RFM Mg=24+35.5 ×2= 95 RFM= 24

moles= 5.00÷ 95= 0.0526 Moles=0.0526

Explanation:

mas of Mg= 1.263 grams

4 0
4 years ago
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