need help answering/ showing work
Option A is the correct answer.
need help answering/ showing work 16) What is the concentration (M) of CH3OH in a solution...
Question 18 2.85 pts What is the concentration (M) of a NaCl solution prepared by dissolving 18.6 g of NaClin sufficient water to give 350 mL of solution? 0 27 18 o 0.36 0 0.91 • Previous Next M 30 F1 :: F2 80 f3
15.) What is the concentration (M) of a NaCl solution prepared by dissolving 9.3 8 of NaCl in sufficient water to give 350 mL of solution? A) 18 B) 0.16 C) 0.45 D) 27 E) 2.7 * 102
what is the concentration (m) of a NaCI solution prepared by dissolving 15.8g of NaCI in sufficient water to give 750ml of solution?
#16 Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass of NaOH= 40.00 g/mol) #17 A solution is prepared by dissolving 15.0g of NaCl in 85.0 g of H2O. Find mass % (m/m) 16. Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass of NaOH = 40.00 g/mol: Show your work below in order to receive credit) 17. A solution is prepared by dissolving 15.0 g of NaCl...
Solutions & Electrolytes Name Date Lab Meeting 1. What is the concentration of ethanol (C2H60) solution that was prepared by dissolving 50-500 g of ethanol into water to a final volume of 750,0 mL? Assume the solution has a density of 1.20 g/mL a. % (m/m) b. M cal equations Predict if the following solutions would conduct
What is the concentration (m) of ions in a solution that is prepared by dissolving 5.66 g of K2SO4 (174 g/mol) in 1.02 liter of water? Assume the density to be 1 g/mL. to the thousandth
I need help in find the solution and understanding the work process behind solve the problems step by step. I would appreciate the help with these problems 1. What is the treezing point of a solution prepared by dissolving 20 g of NaCI (MW 58.4 g mol) in 150 ml. of water? The freezing point depression constant, K, for water 53.4 2. What is the osmotic pressure formed by dissolving 44 2 mg of aspirin (C,l1,0) in 0.358 L of...
Hi, I need help with answering these questions. Thank you. 1) What is the molar absorptivity of riboflavin (with units)? Assume that the cuvette has a pathlength of 1.00 cm and that the blank had an absorbance of 0.00. 2. If a sample of riboflavin with an unknown concentration had an absorbance of 0.597, what is the concentration of the sample? 3. A sample of riboflavin is prepared by crushing 5 tablets and dissolving them in enough water to create...
A solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water at 25 ∘C. The final volume of the solution is 118 mL. The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate mole percent M=4.18 m=4.93 percent by mass= 13.6% mole fraction= 8.15*10^-2
Concentration is the amount of solute dissolved in a certain amount of solution: concentration of a solution=amount of soluteamount of solution Solution concentrations are usually given as one of the following: Mass percent (m/m)—the mass of the solute in grams for exactly 100 g of solution Volume percent (v/v)—the volume of solute in exactly 100 mL of solution Mass/volume percent (m/v)—the mass of solute in grams for exactly 100 mL of solution Molarity (M)—the number of moles of solute in...