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GrogVix [38]
3 years ago
10

How many square centimeters are in an area of 8.10inch2 ?

Chemistry
1 answer:
In-s [12.5K]3 years ago
5 0
8.10in^2=52.25796cm^2

1 in^2=6.4516cm^2

8.10in^2*6.4516cm^2/1 in^2

8.10in^2*6.4516cm^2= 52.25796 cm^2
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For acidic solutions, which element is added to balance half-reactions
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Question 3 0
Tanya [424]

Answer:

Option D. KBr < KCl < NaCl

Explanation:

We'll begin by calculating the number of mole of each sample.

This can be obtained as follow:

For NaCl:

Mass = 1 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mole of NaCl =?

Mole = mass /Molar mass

Mole of NaCl = 1/58.5

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For Kbr:

Mass = 1 g

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Mole of KBr =?

Mole = mass /Molar mass

Mole of KBr = 1/119

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For KCl:

Mass = 1 g

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Mole of KCl =?

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Summary

Sample >>>>>>>> Number of mole

NaCl >>>>>>>>>> 0.0171

KBr >>>>>>>>>>> 0.0084

KCl >>>>>>>>>>> 0.0134

Arranging the number of mole of the sampl in increasing order, we have:

KBr < KCl < NaCl

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This question is incomplete because you lack the options. But it can be answered based on my knowledge.

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There are also Colloids, a type of mixture formed by particles of one or more substances that are dispersed in another substance called a dispersing medium.

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They are the intermediate mixtures between homogeneous and heterogeneous.

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