Magnesium sulfate has a formula weight of 24.48. To make a mole solution (1 ML)

Question

Magnesium sulfate has a formula weight of 24.48. To make a mole solution (1 ML) you would add 246.48 grams of magnesium sulfate to 1 liter of water.

We need a 0.1 M concentration solution, so you would divide 246.48 by 10 for 24.65 grams per liter of water. We don't have a scale, but by carefully measuring 1 mL of magnesium sulfate using the 1 mL measuring spoon, you should have 1.16 grams of magnesium sulfate. How much water will you need to add to have a 0.1 M concentration solution? To work out this problem, use the following equation:

24.65 grams/1000 milliliters = 1.16 grams/x

How many mL did you use to form your 0.1 M magnesium sulfate solution? Show your math calculations, and round to the nearest tenth.

_____________________________

Sodium bicarbonate has a formula weight of 84.01. To make a 1 M solution, you would add 84.01 grams of sodium bicarbonate to 1 L of water. If you measure out 1 mL of sodium bicarbonate with a 1 mL spoon, you should have 1.21 grams. Follow the same steps you used in the problem above to make a 0.1 M concentration solution.

______________________________________________________________

Sodium chloride has a formula weight of 58.44. To make a 1 M solution, you would add 58.44 grams of sodium chloride to 1 L of water. If you measure out 1 mL of codium chloride using a 1 mL spoon, you should have 1.43 grams of sodium chloride. Follow the same steps you used in the problem above to to prepare a 0.1 M solution.

The questions are long, but they're all the same, just with a few different numbers. THANK YOU, and I will give points to those who answer all 3 questions :) PLEASE SHOW ALL WORK IN THE FORMAT OF THE FIRST PROBLEM! I will give best answer :)

Explanation / Answer

24.65 grams/1000 milliliters = 1.16 grams/x

x=47.0ml water should be added

84.01grams/1000 milliliters=1.21 grams/x

x=14.0ml water should be added

58.44/1000 milliliters=1.43 grams/x

x=24.5ml water should be added

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.