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Law Incorporation [45]
3 years ago
9

If a person weighs 68.2 kg, how many pounds is that? Show detailed work

Chemistry
1 answer:
mariarad [96]3 years ago
3 0
One kilogram is equal to about 2.2046 pounds. I divided 68.2 by 2.2046 to get an answer of 30.9353. Hope this helps.
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The number of protons in an uncharged atom _____. the number of protons in an uncharged atom _____. determines its mass number e
Andrews [41]

The number of protons in an uncharged atom equals the number of electrons.

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3 years ago
217 mL of neon gas at 551 celsius is brought to standard temperature (0 celsius) while the pressure is held constant. What is th
pantera1 [17]

Answer: The new volume is 72 ml

Explanation:

To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=217ml\\T_1=551^oC=(551+273)K=824K\\V_2=?\\T_2=0^0C=(0+273)K=273K

Putting values in above equation, we get:

\frac{217ml}{824K}=\frac{V_2}{273K}\\\\V_2=72ml

Thus the new volume is 72 ml

7 0
3 years ago
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In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 5 mL 4.0M ac
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A gas is at a pressure of 3.70 atm. What is this pressure in kilopascals?
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Answer:
                =   374.90 kPa 

Calculation:
                  As we know atm and kiloPascal are related to each other as,

                                         1 atm  =  101.325 kPa
So,
                                    3.70 atm  =   X
Solving for X,
                                     X  = (3.70 atm × 101.325 kPa) ÷ 1 atm

                                     X  =  374.90 kPa 
7 0
3 years ago
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