1 points Save Answer What is the percent concentration by mass/volume of 224.2 ml. of a...
1 points Save Answer What is the percent concentration by mass volume of 102.3 ml. of a solution that contains 53.9 g of barium fluoride? Enter only the numeric value for your answer (no units or symbols).
1 points Save Answer What is the percent concentration by mass if 7 89 g of barium fluoride are mixed with 51.29 g of distilled water to form a solution? Enter only the numeric value for your answer (no units or symbols).
VOIon 6 of 14 1 points Save Answer If 207 ml, of a solution of HCI are diluted to 698 ml. of 0.100 M HCI, what is the molarity of the original HCI solution? Enter only the numeric value for your answer (no units)
Question 1 5 points Save Answer What volume (in mL) of a 369% (w/w) HCI solution must be diluted to prepare 1.000 L of a 0.1000 M HCI solution? The density of 36% (ww) HCI solution is 1.18 g/mL. Molar mass of HCl is 36.46 g/mol. Note: Report only the numerical value (with correct sig fig) in your final answer without the unit and subscript. Round the final answer only, not in the middle of the calculation steps.
What is the percent concentration by mass if 7.89 g of barium fluoride are mixed with 51.29 g of distilled water to form a solution?
1 points When 385 g of NaOH dissolved in water to form 772 9 mL of solution, what is the molanty of the solution? Enter only the numeric value for your answer (no units)
1) In the laboratory, a student combines 32.6 mL of a 0.374 M zinc fluoride solution with 21.3mL of a 0.458 M silver fluoride solution. What is the final concentration of fluoride anion? 2) A 9.43 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If 29.7 mL of 0.450 M sodium hydroxide is required to neutralize the hydroiodic acid, what is the percent by mass of hydroiodic acid in the mixture? _____%...
The mass of a solute versus the volume of a solution is known as mass/volume percent. It is a unit for concentration (g/L x 100%) often used in medicine, particularly with intravenous (IV) bags. If the mass percent of the saline is 0.9%, how many grams of “salt” are in a 1 L saline IV solution? Show your calculations. Retain all units where appropriate in your calculations. [HINT: 1% is the same as 1 gram in 100ml.]
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough chlorine to raise the chlorine concentration of a 27000 gal swimming pool to 2.5 ppm (by mass). Assume a density of 1.00 g/mL for the pool water. (4 pts)
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.