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Butoxors [25]
3 years ago
9

How do you raise the boiling point of a liquid?

Chemistry
1 answer:
Naddika [18.5K]3 years ago
6 0
Raise the boiling temperature
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How many atoms are in 2.10 g of K? molar mass of K=39.10g/mole.
Alborosie

Answer:

<h3>The answer is option B</h3>

Explanation:

To calculate the number of atoms we must first calculate the number of moles

Molar mass = mass / number of moles

number of moles = mass / Molar mass

Molar mass (K) = 39.10mole

mass = 2.10g

number of moles = 2.10/ 39.10

= 0.0537mol

After that we use the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10^23 entities

Number of K atoms is

N = 0.0537 × 6.02 × 10^13

<h3>N = 3.23×10^22 atoms of K</h3>

Hope this helps you.

5 0
3 years ago
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<span>Answer: 1/4 is the average bond order for a pâ’o bond (such as the one shown in blue) in a phosphate ion.</span>
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3 years ago
Thermal energy can be transformed to do work .<br> true<br> false
anyanavicka [17]

Answer:

FALSE!!! Thermal energy can be transformed to heat.

Explanation:

4 0
2 years ago
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A 0.08024 M solution of NaOH was used to titrate a solution of unknown concentration of HCl. A 32.08 mL sample of the HCl soluti
iris [78.8K]

Answer:

0.08024

Explanation:

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What's an example of using evaporation to separate a mixture in everyday life?
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An example can be perspiration or even rain.

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