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avanturin [10]
3 years ago
15

How to turn form moles to grams​

Chemistry
2 answers:
professor190 [17]3 years ago
7 0

If you want to go from moles to grams you will need to multiply the mole value of the substance by its molar mass to get it.

miss Akunina [59]3 years ago
5 0
Turning things to gram so need to convert to the metric system
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What is the total number of moles represented by 20 grams of CACO3
Nutka1998 [239]

Answer:

B. 0.2.

Explanation:

  • We can use the relation:

<em>n = mass/molar mass</em>

mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.

<em>∴ n = mass/molar mass = </em>(20 g)/(100.0869 g/mol) <em>= 0.1998 ≅ 0.2 mol.</em>

<em></em>

<em>So, the right choice is: B. 0.2.</em>

8 0
3 years ago
Is a pencil a compound or an element and is a pencil heterogeneous or homogeneous
masya89 [10]

Answer:

Pencil is an element and a heterogeneous mixture

Explanation:

6 0
3 years ago
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Opal is a hydrated form of silica. If a laboratory analysis of a sample of opal reveals it to contain29.2% Si, 33.3%O, and 37.5%
ZanzabumX [31]
Let us assume that there is a 100g sample of Opal. The masses of each element will be:
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33.3g O
37.5g H2O
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O: (33.3 / 16) = 2.08
H2O: (37.5 / 18) = 2.08
Now we divide by the smallest number and obtain:
Si: 1
O: 2
H2O: 2
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SiO2 . 2H2O
8 0
3 years ago
Yes thank you I love and appreciate this so much woooo
Natali5045456 [20]
Thank you for the points

Hope you have a great day/night
4 0
3 years ago
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What temperature in celsius is 563.18 K
OleMash [197]

Answer:

Explanation: So 1 Kelvin is equal to -272.15 Celsius. Now we need to do some math,

563,180 x -272.15 = -153,269,437 Celsius

I hope this helps :)

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