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siniylev [52]
3 years ago
15

Which of the following terms is defined by the measure of mass per unit of volume?

Chemistry
2 answers:
MrRa [10]3 years ago
5 0

Answer:

I'm glad you asked!

Explanation:

Gravity is a force which keeps people from floating around.

Density is usually used for mass or volume.

Weight is how heavy something is.

Acceleration is when something increases in height,speed etc.

The answer is Density.

cestrela7 [59]3 years ago
4 0
Density is defined by the above term
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Answer:

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Explanation:

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7 0
3 years ago
HURRY PLEASE HELP
Dahasolnce [82]

Answer:

A

Explanation:

its A

facts o.o

7 0
3 years ago
How many grams of silver chromate will precipitate when 150. mL of 0.500 M silver nitrate are added to 100. mL of 0.400 M potass
sergiy2304 [10]

The amount of silver chromate that precipitates after addition of solutions is 12.44 g.

Number of moles:

The number of moles is the product of molarity of the solution and its volume. The formula is expressed as:

Moles = Molarity x Volume

Calculations:

Step 1:

The molecular formula of silver nitrate is AgNO3. The number of moles of silver nitrate is calculated as:

Moles of AgNO3 = 0.500 M x (150/1000) L

= 0.075 mol

Step 2:

The molecular formula potassium chromate is K2CrO4. The number of moles of potassium chromate is calculated as:

Moles of K2CrO4 = 0.400 M x (100/1000) L

= 0.04 mol

Step 3:

The balanced chemical reaction between AgNO3 and K2CrO4 is:

2AgNO3 + K2CrO4 -----> Ag2CrO4 + 2KNO3

The required number of moles of K2CrO4 = 0.075 mol/2 = 0.0375 mol

The given number of moles of K2CrO4 (0.04 mol) is more than the required number of moles (0.0375 mol). Therefore, AgNO3 is the limiting reagent.

Step 4:

According to the reaction, the molar ratio between AgNO3 and Ag2CrO4 is 2:1. Hence, the number of moles of Ag2CrO4 formed is 0.0375 mol.

The molar mass of Ag2CrO4 is 331.74 g/mol.

The mass of Ag2CrO4 is calculated as:

Mass = 0.0375 mol x 331.74 g/mol

= 12.44 g

Learn more about precipitation here:

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6 0
1 year ago
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Aleksandr [31]

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The variable that is changed by the experimenter is 5. the independent variable.

A count or measurement recorded during an experiment is 4. quantitative data.

Descriptions or observations during an experiment are 3. qualitative data.

5 0
3 years ago
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pentagon [3]

Pretty sure it’s gypsum.

8 0
2 years ago
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