What mass of NaClO must be dissolved in 450 g of deionized water to make a 100 ppm solution? Assume the density of the resulting solution is 1.00 g·mL-1.
What mass of NaClO must be dissolved in 450 g of deionized water to make a...
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution? 2. A 200-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.) 3. How many grams of NaBr are needed to make 50 g of a 5.0% solution? 4. How many grams of LiOH are needed to make 25 g of a 4.0% solution? 5. What...
What mass of KBr must be dissolved in 902 g of methanol to make a 0.300 m solution? 32.2 g 2.27 g 39.6 g 22.5 g
0.60 g of hydrogen chloride (HCl) is dissolved in water to make 8.0 L of solution. What is the pH of the resulting hydrochloric acid solution? 0.50 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 4.0 L of solution. What is the pH of this solution?
Given 15.0 g of NaCl (MM of NaCl = 58.44 g/mol) is dissolved in 100.0 g of water: a. Determine the mass percent of this solution. b. Assume the density of the solution is 1.00 g/ml, calculate the molarity of the solution.
10) 0.0085 g of N3⁻ is dissolved in 1.3 L of water. Determine the concentration of N3⁻ ions in ppm if the density of the solution is 1.00 g/mL. Show work A) 3.6 ppm B) 9.6 ppm C) 6.5 ppm D) 2.4 ppm E) 7.2 ppm
A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound dissolved in enough water to make 175 ml of solution at 25 degrees C what is the osmotic pressure of the resulting solution ?
a mass of 5.96 g of hydrated disodium hydrogenphosphate, na2hPO4.7h2O, was dissolved in 250 cm3 water at 298 K. Calculate the molality of the solute in the resulting solution, given that the mass density of water at this temperature is 0.997g cm-3
0.10 g of hydrogen chloride (HCl) is dissolved in water to make 2.5 L of solution. What is the pH of the resulting hydrochloric acid solution? Express the pH numerically to two decimal places. 0.20 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 6.5 L of solution. What is the pH of this solution? Express the pH numerically to two decimal places.
5.3307 g of Na2CrO4 (MW 161.97 g/mol) is dissolved in 1000.0 mL of water. Assuming the solution has a density of 1.00 g/mL, what is the concentration of Na (MW 22.9898 g/mol) in the solution in units of a) molarity (M)? Number b) parts per thousand (ppt)? Number ppt c) 25.0 mL of the solution is then diluted to a final volume of 500.0 mL. What is the concentration of Na* in the diluted solution in units of parts per...
A 5.0067 g sample of Na2CrO4 (MW = 161.97 g/mol) is dissolved in 250.0 mL of water. Assume the solution has a density of 1.00 g/mL. A 50.0 mL aliquot of the solution is then diluted to a final volume of 250.0 mL. What is the concentration of Na+ in the diluted solution in units of parts per million (ppm)?