What is the molar concentration of NaCl in the resulting solution? Look for details?

Question

We have dissolved 0.909 lbs of NaCl in 1.56 gallons of water. What is the molar concentration of NaCl in the resulting solution?

Answer 1

1.2 molar


good luck

Answer 2

Molarity = moles / liters

Convert pounds to grams:

0.909 lbs x 453.59 g/ 1 lbs = 412 grams NaCl

Convert grams NaCl to moles, 58 grams is the molar mass of NaCL:

412 grams x 1 mole/58 grams = 7.1 moles

Convert 1.56 gal of water to L water:

1 US gallons = 3.7854118 liters

1.56 gal x 3.7854118 L / 1 gal = 5.9 L

punch into molarity equation:

7.1 moles / 5.9 L = 1.2 M <-- your answer

Answer 3

I wont tell you the answer....

...I will tell you how to find the answer.

1 Look on the periodic table for the atomic weight of Na and Cl add togeter. that is the weight in grams of one mole of NaCL.

molar concentration is moles/L so to find the number of moles of NaCL in .909 lbs, convert lbs to kg (1kg=2.2lbs) then convert kg to grams (1kg=1000g). Divide that number by the weight in grams of one mole of Nacl

2 Now you have to convert 1.56 gallons into L. I dont know the conversion of gal to L but it should be in the front or back of your science book.

divide the first number by the second number. and badabing

molar concentration

Answer 4

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