A 12.0 mL sample of NaCl solution has a mass of 12.65g after the solution is...
10. Volume of sample in liters 11. Molarity of NaCl solution (Show calculations.) Questions and Problems 05 A 15.0-ml sample of NaCl solution has a mass of 15.78 g. After the NaCl solu- tion is evaporated to dryness, the dry salt residue has a mass of 3.26 g. Calculate the following concentrations for the NaCl solution. a. % (m/m) b. % (m/v) c. molarity (M) Q6 How many grams of KI are in 25.0 mL of a 3.0% (m/v) KI...
7.28 Initial Volume of NaCl solution in cylinder, (mL) Volume of NaCl solution remaining in cylinder, (mL) Volume of NaCl solution transferred to dish, (mL) Mass of dish, (g) Mass of dish and NaCl solution, (g) Mass of NaCl solution, (g) Mass of dish and dried Naci, (g) Mass of dried NaCl, (g) Density of solution, (g/mL) Percent NaCl (m/m),() Percent NaCl (m/v), (%) Molarity of NaCl, (moles/L) 1.78 5.50 79.25 85.75 6.50 80.95 1.70 1.18 262 309 5.26 Problems...
erksheet 7-Rey 10 A 10.0 mL sample of sodium chioride solution that has a mass of 16.78 g is placed in an Solutions evaporating dish and evaporated to dryness. The residue has a mass of 6.55 g. Calculate the following concentrations for the NaCl solution mass/mass (m/m) percent mass/volume (m/v) percent malarity A 4.00 % (g/mL) KI solution has a volume of 65.0 mL. How many grams of KI are in the sample? How many grams of a 35% (...
Part A 200. mL of a 12.0% (m/v) NaCl solution is diluted to 600. ml. The new concentration is Express your answer using three significant figures. 10 AED – O o ? % (m/v) Submit Request Answer they Provide Feedback
If 276 mL of a 2.30 M aqueous solution of Ca(NO3) is evaporated to dryness, what is the mass of the residue?
If 242 mL of a 2.50 M aqueous solution of Ca(NO3)2 is evaporated to dryness, what is the mass of the residue?
d.NH c. NaCl 8-61 Calculate the molarity of a 10.0% (m/v) NaOH solution. Caleulate the mase volhume nercent concentration for 8-63 After all of the water is evaporated from 10.0 mL of a CsCl solution, 3.75 g of solid CsCl remains. Calculate the original concentration of the CsCl solution in the following units. a. mass-volume percent b. molarity 66 After allof the water is evanorated from 25.0 mL of a What is the molarity of the solution prepared by diluting...
A 12.34 mL solution with an unknown salt concentration had a mass of 10.25 g. When the water was evaporated from the solution. 4.78 g of NaCl remained. a Calculate the mass-mass percent NaCl concentration in the solution. Show your work. b Calculate the mass-volume percent NaCl concentration in the solution. Show your work. Calculate the molarity of NaCl in the solution. Show your work.
Section Laboratory Caleulations 1.A.0 ml sample of NaCl solution was 5057 grams. When the water was evaporated, the residual salt weighed 1.285 grams (10 pts) Fill in the data table below using the information given Mass of salt solution Mass of NaCl Mass of water Volume of solution Using the information from the data table, calculate: a. The % weight-weight of NaCl in the solution. b. The grams of NaCl per 100 grams of water. C. The molarity of the...
Section Laboratory Caleulations LA 30 ml sample of NaCl solution was 957 orams. When the water was evaporated, the residual salt weighed 1.285 grams. (10 pts) Fill in the data table below using the information given Mass of salt solution Mass of NaCl Mass of water Volume of solution Using the information from the data table, calculate: a. The % weight-weight of NaCl in the solution. b. The grams of NaCl per 100 grams of water. C. The molarity of...