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Maurinko [17]
4 years ago
15

The volume of one cup of water is 0.000236 cubic meters. Use scientific notation to represent the volume of one cup of water.

Chemistry
1 answer:
zhannawk [14.2K]4 years ago
3 0
2.36x10^-4 is the answer
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Using this equation, m1v2=m2v2 , calculate the diluted molarity of 100 mL of a 0.5 M solution when 50 mL of
geniusboy [140]

The molarity of the diluted solution is 0.33 M

From the question given above, the following data were obtained:

Molarity of stock solution (M₁) = 0. 5 M

Volume of stock solution (V₁) = 100 mL

Volume of diluted solution (V₂) = 100 + 50 = 150 mL

<h3>Molarity of diluted solution (M₂) =? </h3>

The molarity of the diluted solution can be obtained by using the dilution formula as illustrated below:

<h3>M₁V₁ = M₂V₂</h3>

0.5 × 100 = M₂ × 150

50 = M₂ × 150

Divide both side by 150

M₂ = 50 / 150

<h3>M₂ = 0.33 M</h3>

Therefore, the molarity of the diluted solution is 0.33 M

Learn more: brainly.com/question/24625656

8 0
3 years ago
Number of moles in 7.8 x 10(at top of 10 like exponent 23) molecules
Anarel [89]
First you need to know Avogadro's number which is 6.02 times 10^23 molecules in 1 mole of a substance. So now just divide your number by Avagadro's number to get the number of moles.
6 0
3 years ago
How many molecules are in 228.7 grams of KBr?
Korvikt [17]

Answer:

the answer is 119.0023 grams

8 0
3 years ago
Enzymes are remarkably efficient catalysts that can increase reaction rates by as many as 20 orders of magnitude.(b) What charac
Makovka662 [10]

The characteristics of enzymes that give them this effectiveness as catalysts are they are made up of protein, they do not consume in the reaction ad lower the activation energy.

<h3>What is an enzyme?</h3>

The enzyme is a biological catalyst. The substrate is bound to them, and they supply the activation energy. It is the quantity of energy needed to initiate the reaction.

They are effective catalysts, as a small amount of them can affect a large amount of reaction.

Thus, enzymes are made of protein, do not consume in the reaction, and have reduced activation energy, which contributes to their efficiency as catalysts.

To learn more about enzymes, refer to the link:

brainly.com/question/1996362

#SPJ4

5 0
2 years ago
Complete this sentence. The solubility of a sample will ____________ when the size of the sample increases.
slavikrds [6]
The solubility of a sample will DECREASE when the size of the sample increases.
The bigger a substance is, the more will be the particles that make up this substance and the greater the amount of solvent that will be needed to dissolve the substance. Surface area of the substance is also important, a small surface area will impede solubility. Thus, when the size of a sample increases, the solubility decreases.
5 0
3 years ago
Read 2 more answers
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