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bekas [8.4K]
2 years ago
13

I'm having with chemistry assignments I need a help

Chemistry
1 answer:
chubhunter [2.5K]2 years ago
5 0

Answer:

the question please? illl help

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STatiana [176]
The answer is B. The complete equation is C6H12O6 + 6O2 -->6H2O + 6CO2 + energy. So we can know that A and C and D is right. For B, the reaction release energy so it is exothermic reaction.
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Write the complete chemical equations for production of pentanol from pentene​
ollegr [7]

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In the equation N2 + 3H2 --> 2NH3, the coefficient of the hydrogen reactant is
Anastasy [175]

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daser333 [38]

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c

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b and d are out, the variables are changed. a would be a repetition, not a replication. c uses the same method and variables with a different control group

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3 years ago
A smaple of 1cm cuvette gives an absorbance reading of 0.558. if they absorptivity for this sample is 15000l/(mol.cm), what is t
Mazyrski [523]
To solve this problem, we use Beer's Law: A= ε.l.c
A is the absorbance- 0,558
<span>ε is</span> the molar absorptivity- is <span>15000 </span><span><span>L⋅mol-1</span><span>cm-1</span></span>
<span>l is </span>the length of the cuvette- 1 cm
<span>c is</span> the molar concentration

Applying the formula,
0,558= 15000 x 1 x c
0,558/15000= c
c= <span>3.72×<span>10⁻⁵ </span> <span>mol⋅L<span>⁻¹</span></span></span>
<span />
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3 years ago
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