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kifflom [539]
2 years ago
10

6. What is the molarity of 175 mL of solution containing 2.18 grams of NazS04-10H2O?​

Chemistry
1 answer:
Ymorist [56]2 years ago
8 0

Answer:

Molarity\,\,of\,\,the\,\,solution\,\,is\,\,S=0.039M

Explanation:

W=2.18 g\\M=322g\\V=175mL=0.175L\\\\S=\frac{W}{MV} \\=>S=\frac{2.18}{322*0.175} \\So,S=0.039M

Hope you have understood this.....            

ask me if you have any confusion.....          

if you liked it pls mark it as the brainliest

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What is the volume of an 2.3 solution with 212 grams of calcium chloride dissolved in it
Travka [436]

830 mL. A 2.3 mol/L solution of CaCl2 has a volume of 830 mL

I am guessing that the concentration of your solution is 2.3 mol/L.

a) Moles of CaCl2

MM of CaCl2 = 110.98 g/mol

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= 1.910 mol CaCl2

b) Volume of solution

V = 1.910 mol CaCl2 x (1 L solution/2.3 mol CaCl2) = 0.83 L solution

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5 0
3 years ago
Density measurements were conducted on a 22.5oC sample of water which had a theoretical density of 0.997655 g/ml. A volume of 10
Sophie [7]

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p_{A} =9.98g/10.00mL=0.998g/mL\\p_{B} =15.61g/15.00mL=1.041g/mL\\p_{C} =25.65g/25.00mL=1.026g/mL

  • (2)To calculate the average density, we add each density and divide the result by the number of experiments (in this case 3):

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%error=\frac{|1.022g/mL-0.997655g/mL|}{0.997655g/mL}*100

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7 0
3 years ago
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olga2289 [7]
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hope this helps!
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3 years ago
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alexgriva [62]

Answer:

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Explanation:

The graduated cylinder is shown in the image attached.

Now we have to take a good look at the cylinder, the lines between 45 and 50 are 46, 47, 48 and 49. Even though the points in between two lines weren't graduated but we can intelligently guess the correct volume by observing the upper meniscus of the liquid. Hence the answer.

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