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Lunna [17]
3 years ago
11

If you are given a.4 m solution of hydrochloric acid what is the ph

Chemistry
1 answer:
Arisa [49]3 years ago
7 0
HCl completely dissociates into H+ and Cl- so a 0.4 M solution of HCl will have a 0.4 M concentration of H+. The pH will then be
-  log(0.4)  = 0.398
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The Great Pacific Garbage Patch is created by _____ currents. A. local B. surface C. deep ocean
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In your own words, explain how multiple approaches to a scientific investigation can be used to obtain the same result. Provide
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Convert 16.8 L of nitrogen monoxide gas at STP to grams .
german

Answer:

See explanation

Explanation:

1 mole of a gas occupies 22.4 L

x moles occupies 16.8 L

x = 1 mole *  16.8 L/22.4 L

x = 0.75 moles

number of moles = mass/molar mass

mass =  number of moles  * molar mass

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the coefficient of the scientific notation answer = 2.25

the exponent of the scientific notation answer = 1

significant figures are there in the answer = 6

the right most significant figure in the answer = 3

2.

number of moles = 12.5g/38g/mol = 0.3289 moles

1 mole occupies 22.4 L

0.3289 moles occupies 0.3289 moles * 22.4 L/1 mole

= 7.36736 L = 7.36736 * 10^0 L= 7.37 * 10^0 L

the coefficient of the scientific notation answer =7.37

the exponent of the scientific notation answer = 0

significant figures are there in the answer = 6

the right most significant figure in the answer= 3

8 0
3 years ago
What is the primary requirement for a molecule to be analyzed by Gas Chromatography?
BabaBlast [244]

Answer:

b) The molecule has a molecular weight under 200 g/mole

Explanation:

The molecule has a molecular weight under 200 g/mole is the primary requirement for a molecule to be analyzed by Gas Chromatography.

3 0
3 years ago
Read 2 more answers
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