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babymother [125]
3 years ago
6

Using the correct number of significant figures 52.733 multiplied by 48.21

Chemistry
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

Answer:

2542

Rule for multiplying Significant Figures:

  • The product is limited to the number of sig figs equal to the least number of sig figs in the problem

Explanation:

52.733 has 5 significant figures and 48.21 has 4 significant figures. Therefore, the answer given must have 4 significant figures.

52.733(48.21) = 2542.25793

This answer round to have 4 significant figures is 2542.

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Uranium – 235 has a half-life of 713 million years. Would uranium – 235 or carbon – 14 be more useful for dating Cambrian time e
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6 0
2 years ago
Suppose you have a sample of table salt (NaCl) that has a mass of 100.0 grams. If
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Taking into account the definition of molarity, the concentration of the solution is 0.855 \frac{moles}{liter}.

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

Molarity=\frac{number of moles}{volume}

Molarity is expressed in units \frac{moles}{liter}.

<h3>Molarity of NaCl</h3>

In this case, you have:

  • number of moles of NaCl= 100 grams\frac{1 mole}{58.45 grams} =1.71 moles (being 58.45 g/mole the molar mass of NaCl)
  • volume 2 L

Replacing in the definition of molarity:

Molarity=\frac{1.71 moles}{2 L}

Solving:

Molarity= 0.855 \frac{moles}{liter}

Finally, the concentration of the solution is 0.855 \frac{moles}{liter}.

Learn more about molarity:

<u>brainly.com/question/9324116</u>

<u>brainly.com/question/10608366</u>

<u>brainly.com/question/7429224</u>

5 0
2 years ago
What is the mass of 1.84 mol NaCl? Give your
Sphinxa [80]

Answer:

108 g

Explanation:

3 0
3 years ago
The activiation energy required for a chemical reaction can be decreased by?
ollegr [7]

Answer:

C)

Explanation:

C) adding a catalyst to the reaction.

5 0
3 years ago
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