What mass of cesium bromide must be added to 0.500 L of water d=1.00 to produce a 0.650 m solution? What are the mole fraction and the mass mL percent of CsBr? Be sure each of your answer entries has the correct number of significant figures. Part 1 of 3 Mass of cesium bromide = Part 2 of 3 Mole fraction= Part 3 of 3 Mass percent= % g X x10

Calculate the molarity of each of the following solutions. Part 1 of 3 (a) 18.0 g of ethanol (C₂H5OH) in 5.90 × 10² mL of solution. Round your answer to 3 significant digits. ₁ M Part 2 of 3 (b) 10.6 g of sucrose (C12H22011) in 76.0 mL of solution. Round your answer to 3 significant digits. Part 3 of 3 M 0 M x10 X (c) 7.45 g of sodium chloride (NaCl) in 87.4 mL of solution. Round your answer to 3 significant digits. 0 10 X G

The EPA limit for manganese in drinking water is 0.05 mg per L of solution. What is this concentration of manganese in mass %, ppb, and molarity? Assume the solution has the same density as water. Use "E" for scientific notation; e.g. 0.001 would be entered 1E-3 mass % ppm molarity = 2.jpg 3.jpg Open file 4.jpg Open file 5.jpg Open file Open file file 99+ op

Calculate the volume of stock glucose solutions (2.5 % and 15%) that need to be used to prepare 800 mL of glucose solution with a concentration of 13%. In this case % refers to the grams of glucose per 100 mL of water. V1= volume of stock solution with concentration C (2.5%) V2= volume of stock solution with concentration C2 (15 %) You need to determine V, and V2 in mL

Ms. Dunne added 2233.8 milliliters of water to 16.2 milliliters of NaOH solution to make a 3.60 × 10-5 M NaOH solution. What was the molarity, in M to the nearest thousandth, of the original NaOH solution before Ms. Dunne diluted it? Give your answer in scientific notation.

Give the mass of the solute and mass of the solvent for 1.30 LL of a solution that is 17.0 %% of Pb(NO3)2Pb(NO3)2 by mass (the density of the solution is 1.16 g/mLg/mL), starting with solid solute. Express your answers using three significant figures. Enter your answers numerically separated by a comma.

If a chemist wishes to dilute a 1.000 x 103 mg/L stock solution to prepare 5.000 × 10² mL of a working standard that has a concentration of 4.500 mg/L, what volume of the 1.000 x 10³ mg/L standard solution is needed? mL