What is the molarity of a solution that contains 18.7 g of KCl (MW=74.5) in 500...

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Chemistry

  1. What is the molarity of a solution that contains 18.7 g of KCl(MW=74.5) in 500 mL of water?
  2. 25 g of NaOH (MW = 40) is added to 0.5 L of water. What is themolarity of this solution if an additional 0.25 L of water is addedto this solution?
  3. How many grams of H2SO4 (MW = 98) are in750 mL of 3 N H2SO4?
  4. What is the normality of a solution that contains 280 g of NaOH(MW=40) in 2000 mL of solution?
  5. A serum potassium is 19.5 mg/100 mL. This value is equal to howmany mEq/L (MW = 39)?

You are given a series of 5 tubes, each of which contains 5 mLof saline. To the first tube is added 1 mL of serum, and a serialdilution using 1 mL is carried out in the remaining tubes.

  1. What is the dilution in the first tube?
  2. What is the final dilution in the third tube
  3. The third tube was run, and the triglyceride concentration was3 mg/dL. Give the triglyceride concentration in the 1sttube:
  4. What is the concentration of the original specimen?
  5. What result do you report out?

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What is the molarity of a solution that contains 187 g of KCl MW745 in 500 mL of water Mass of KCl 187 g Moles of KCl 187 g 745 gmol 02510 Mole s Molarity Moles of solute liters of solvent    See Answer
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