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max2010maxim [7]
3 years ago
11

What is the molar mass, in grams, of a mole of an element equal to?

Chemistry
1 answer:
prohojiy [21]3 years ago
6 0
Technically molar mass cannot be in grams, it is in grams per mole. and it refers to a specific number of molecules of a substance, therefore substances have different molar masses because the elements have different weights. for example having 10 water molecules would be a lot heavier than having 10 air molecules
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An action with a stimulus and reflex response is an involuntary action
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WHICH STATE OF MATTER IS THIS: PARTICLES VIBRATE AND CHANGE POSITION
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Answer: Gas. Gas vibrates and move freely at high speeds.

Explanation:

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100 POINTS! Final Honor Activity Question
castortr0y [4]

The change in temperature had the greatest effect at changing the volume of the balloon.

<h3>What are the gas laws?</h3>

The gas laws are used to describe the parameters that has to do with gases.

Given that;

P1 = 98.5 kPa

T1 = 18oC or 291 K

V1 =  74.0 dm3

P2 =  7.0 kPa

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When;

V1 = 1041.3 dm3

T1 = 291 K

V2 = ?

T2 = 80oC or 353 K

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V2 = V1T2/T1

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The change in temperature had the greatest effect at changing the volume of the balloon.

Given that

V1 =  100 cm^3

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P2 =  3.00 x 10^-4 Pa

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7 0
2 years ago
A mass of 100.0 g of NaCl is added to 100.0 mL of water, but not all of it dissolves. A mass of 59.5 grams of NaCl solid remains
Taya2010 [7]

Answer:

The molarity of the dissolved NaCl is 6.93 M

Explanation:

Step 1: Data given

Mass of NaCl = 100.0 grams

Volume of water = 100.0 mL = 0.1 L

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Molar mass NaCl= 58.44 g/mol

Step 2: Calculate the dissolved mass of NaCl

100 - 59. 5 = 40.5 grams

Step 3: Calculate moles

Moles NaCl = 40.5 grams / 58.44 g/mol

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Step 4: Calculate molarity

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The molarity of the dissolved NaCl is 6.93 M

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