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EleoNora [17]
2 years ago
9

How many moles are in 4.5 g of Sodium Chloride, NaCl?

Chemistry
1 answer:
Sergeu [11.5K]2 years ago
6 0

Answer:

The answer to the question is 0.07 moles

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If 185 mg of acetaminophen were obtained from a tablet containing 350 mg of acetamino- phen, what would be the weight percentage
Alex73 [517]

Percentage recovery gives us an idea of the amount of pure substance recovered after the chemical reaction. Percentage recovery can be more than 100 % or less than 100 %. Usually, in any experiment performed the weight percentage recovery will be less than 100. Percent recovery values greater than 100 show that the recovered compound is contaminated.

Amount of acetaminophen initially taken = 350 mg

Amount of acetaminophen obtained after recovery =185 mg

Weight percentage recovery =\frac{mass recovered}{mass originally taken}*100

                                                = \frac{185 mg}{350 mg}*100

                                               = 52.9%

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3 years ago
What happened to the sound as vibration of an object increase in strength​
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A.The sound becomes louder.

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C.The sound waves get further.

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Louder the sound it will travel long.

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The volume occupied by a gas at STP is 250 L. At what pressure (in atm) will the gas occupy 1500 L, if the temperature is consta
Dennis_Churaev [7]

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6 atm

Explanation:

Using the formula P1V1=P2V2

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250L(P2) = 1500

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Referring to the experiment in which the scientists studies how long it
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different sizes of the parachute

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