3 years ago

How do you classify a substance with a pH of 3?

Chemistry

1 answer:

otez555 [7]3 years ago

7 0

If a pH is lower than 7 it indicates the solution is an acid.

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How many moles of potassium nitrate, KNO3 are present in a sample with a mass of 85.2 g?

Bingel [31]

0.843 moles would be the answer

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3 years ago

What is the correct prefix for 6? O A. Oct- O B. Hepta- O C. Nano- O D. Hexa-

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Answer:

Hexa

Explanation:

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2 years ago

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What can group numbers on the periodic table help you determine?

Ilia_Sergeevich [38]

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3 years ago

Group 17 is called the halogen family, and the group to its right is called the noble gases. How are the elements in these group

Firlakuza [10]

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3 years ago

2.00 moles of an ideal gas was found to occupy a volume of 17.4L at a pressure of 3.00 atm and at a temperature of 45 C. Calulat

lidiya [134]

Answer:

$0.082 atm L mol^{-1} K^{-1}$

Explanation:

The pressure, the volume and the temperature of an ideal gas are related to each other by the equation of state:

$pV=nRT$

where

p is the pressure of the gas

V is the volume of the gas

n is the number of moles

R is the gas constant

T is the absolute temperature

For the gas in this problem:

n = 2.00 mol is the number of moles

V = 17.4 L is the gas volume

p = 3.00 atm is the gas pressure

$T=45C+273=318 K$ is the absolute temperature

Solving for R, we find the gas constant:

$R=\frac{pV}{nT}=\frac{(3.00)(17.4)}{(2.00)(318)}=0.082 atm L mol^{-1} K^{-1}$

5 0

3 years ago