Answer:
A) The rate constant is 0.0078 s^-1
B) The order of the reaction is 1
Explanation:
A) Rate constant (k) = Rate ÷ final concentration
Rate = change in concentration/half-life
Initial concentration of reactant = 0.38 M
Half-life is the time taken for the reactant to decompose to half of its initial concentration = 129 s
Final concentration = 1/2 × 0.38 = 0.19 M
Change in concentration = 0.38 - 0.19 = 0.19 M
Rate = 0.19/129 = 0.0015 M/s
Rate constant (k) = 0.0015 M/s ÷ 0.19 M = 0.0078 s^-1
B) Rate = kC^n
n is the order of the reaction
0.0015 = 0.0078×0.19^n
0.19^n = 0.0015/0.0078
0.19^n = 0.19
Log 0.19^n = Log 0.19
nLog 0.19 = Log 0.19
n = Log 0.19/Log 0.19 = 1
Answer:
by principal quantum number (n) and azimuthal quantum number (l)
Explanation:
I used the web to answer so I'm not sure if this is right
Atoms of the same elements differing in the number of neutrons in their nuclei are known as isotopes. Thus, isotopes of an element have the same atomic number but different atomic mass number. Isotopes of an element have similar chemical properties but different physical properties.
Lol yeah that’s what I’m doing I just want you know I got a lot of you guys to go and you don’t get
0.1 mL of the stock solution of the enzyme is taken and made up to 5.0 mL with 0.001M HCl in order to prepare a 50-fold diluted enzyme.
<h3>What is dilution?</h3>
Dilution is a process of making a solution of lower concentration from a solution of higher concentration by the addition of solvent to a given volume of the solution of higher concentration.
Dilution of solutions is done using the dilution formula in order to determine the given volume of diluent or stock solution required. The dilution formula is given below:
where:
- C1 = Initial concentration of enzyme
- C2 = Final concentration of enzyme
- V1 = Initial volume
- V2 = Final volume
For the enzyme dilution;
C1 = 1 mg/mL
C2 = 1/50 mg/ml = 0.02 mg/ml
V= ?
V2 = 5 ml
V1 = C2V2/C1
V1 = 0.02 * 5/1 = 0.1 mL
Therefore, 0.1 mL of the stock solution of the enzyme is taken and made up to 5.0 mL with 0.001M HCl in order to prepare a 50-fold diluted enzyme.
Learn more about dilution at: brainly.com/question/24881505
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