Ask Question
1 July, 11:14

Calculate the initial molarity of MCHM in the river, assuming that the first part of the river is 7.60 feet deep, 100.0 yards wide, and 100.0 yards long. 1 gallon = 3.785 L.

+2
Answers (1)
  1. 1 July, 12:43
    0
    [MCHM] = 7.52 M

    Explanation:

    This all about unit conversion

    1 feet = 0.3048 meters

    1 yard = 0.9144 meters

    7.60 feet. 0.3048 = 2.31 meters deep

    100 yd. 0.9144 meters = 91.44 meters long and 91.44 meters wide

    In the river we have a volume of:

    2.31 m. 91.44m. 91.44m = 19314.5 m³

    1 dm³ = 1 L

    1 dm³ = 0.001 m³

    19314.5 m³ / 0.001 m³ = 19314542 L (The final volume of the river)

    3.785 L = 1 gallon

    In 19314542 L, we have (19314542 / 3.785) = 5102917 gallons

    1 gallon = 128 oz

    5102917 gallons. 128 = 653173376 oz

    1 oz = 28.3495 g

    653173376 oz. 28.495 = 1.86x10¹⁰ grams

    Molar mass MCHM = 128 g/m

    Moles of MCHM = 1.86x10¹⁰ grams / 128 g/m = 145312500 moles

    Molarity = mol / L → 145312500 moles / 19314542 L = 7.52 M
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Calculate the initial molarity of MCHM in the river, assuming that the first part of the river is 7.60 feet deep, 100.0 yards wide, and ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers