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NikAS [45]
3 years ago
15

Help me with my Science assignment please its graded.​

Chemistry
2 answers:
julsineya [31]3 years ago
5 0
The Test looks great but the water replacement is C.
Ainat [17]3 years ago
4 0

Answer:

i think use water displacement with just one 10c

Explanation:

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A student dissolves 0.0688 mol of sodium hydroxide in water to make a 0.250 L solution. What is the molarity of the solution?
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Number of moles = 0.0688 moles of NaoH

volume = 0.250 L

Molarity = moles of solute / volume ( L )

M = 0.0688 / 0.250

M = 0.28 M

Answer B
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What is the name of a solution whose concentration of solute is equal to the maximum concentration that
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Hi! help me please. CALCULATE THE NUMBER OF MOLECULES FOUND IN 8 MOL OF WATER?
kvasek [131]

Answer:

so the number of molecules in 8 moles of water is 4.8176×10^24

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number of moles=8moles

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as we know that

number of moles=\frac{number of molecules}{avogadro's number}

substituting the equation

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number of molecules=4.8176×10^24

i hope this will help you :)

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Where is earths mantle located
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P1: 741 mmHg

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