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Ivahew [28]
3 years ago
11

Please help me with 6 7 8 and don’t send me a link tell me here please

Chemistry
1 answer:
lukranit [14]3 years ago
5 0

Answer:

6 b physical properties

7b melting point

8 boiling

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A 254.5 g sample of a white solid is known to be a mixture of KNO3, BaCl2, and NaCl. When 116.5 g of this mixture is dissolved i
Margaret [11]

Answer:

Mass of KNO3 in the original mix is 146.954 g

Explanation:

mass of KNO_3 in original  254.5 mixture.

moles of BaSO_4 = \frac{mass}{Molecular\ Weight}

moles ofBaSO_4  = \frac{68.3}{233.38}

                               = 0.2926 mol of BaSO4

Therefore,

0.2926 mol of BaCl2,

mass of BaCl_2 = mol\times molecular weight

                         = 0.2926\times 208.23

                         = 60.92 g

the AgCl moles = \frac{mass}{Molecular\ Weight}

                          = \frac{199.1}{143.32}

                          = 1.3891 mol of AgCl

note that, the Cl- derive from both, BACl_2 and NaCl

so

mole of Cl- f NaCl = (1.3891) - (0.2926\times 2) = 0.8039 mol of Cl-

mol of NaCl = 0.8039 moles

mass = mol\times Molecular\ Weight  = 0.8039 \times 58 = 46.626\ g \ of \ NaCl

then

KNO3 mass = 254.5 - 60.92-46.626 = 146.954 g of KNO_3

Mass of KNO3 in the original mix is 146.954 g

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2 years ago
What is the average atomic weight of silver?​
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107.8682 u would be the answer

Explanation:

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Is CH3NH2O ionic or covalent
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Answer:

i think ionic?

Explanation:

hope this helps

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Which of the following is an example of maintaining homeostasis? A. Learning B. Jumping C. Shivering D. Smiling
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Shivering.

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