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3 years ago

What is the mass, in grams, of one mole of any substance known as?

2 answers:

5 0

<h2><em>Hii..</em></h2><h2 /><h2 /><h2><em><u>Correct option : </u> </em><em>(</em><em>B.</em><em>)</em><em> Molar mass</em></h2><h2 /><h2 /><h2 /><h2><em> Have a nice time.</em>☆<em>.!!</em></h2>

Mashutka [201]3 years ago

4 0

The answer is B. the molar mass.

The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles.

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A student measures the absorbance of a sample of red dye #3 using a spectrophotometer. If the absorbance is measured as 0.468, w

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Answer:

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Explanation:

Absorbance is defined s capacity of a substance to absorb a light of a specified wavelength.It is calculated by using Beer-Lambert Law:

$A=\epsilon lc$

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$0.468=7.96\times 10^4 M^{-1} cm^{-1}\times 1.00 cm\times c$

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5.88 μM is the concentration of red dye in the sample.

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3 years ago

During this chemical reaction energy is absorbed. In the chemistry lab, this would be indicated by a decrease in temperature or

Semmy [17]

Reactions like this one absorb energy because the reactants have less potential energy than the products.

<h3>What is an Endothermic reaction?</h3>

This is the type of reaction in which the reactants absorb heat energy from the surroundings to form products.

This brings about a decrease in the temperature as a result of the reactants having less potential energy than the products thereby making option B the most appropriate choice.

Read more about Endothermic reaction here brainly.com/question/6506846

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2 years ago