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Olenka [21]
3 years ago
9

URGENT HELP! I dont understand anything of this and this is for tomorrow

Chemistry
1 answer:
Tatiana [17]3 years ago
3 0

Basically, the graph shows a linear (line) relationship with mass and volume. The slope will equal the density of the substance because mass/volume is the equation for density. Your paper is a bit unclear, but I can understand this much, Hope this helped a little bit :)

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If 65.5 ml of HCl stock solution is used to make 450 ml of a 0.675 M HCl dilution, what is the molarity of the stock solution ?
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<u>Answer:</u> The molarity of the stock solution is 4.64 M

<u>Explanation:</u>

To calculate the molarity of the diluted solution, we use the equation:

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the molarity and volume of the stock solution

M_2\text{ and }V_2 are the molarity and volume of diluted solution

We are given:

M_1=?M\\V_1=65.5mL\\M_2=0.675M\\V_2=450mL

Putting values in above equation, we get:  

M_1\times 65.5=0.675\times 450\\\\M_1=4.64M

Hence, the molarity of the stock solution is 4.64 M

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