mol of NaOH = mass/MW = 19.2/40 = 0.48 molV = 1.05LM = mol/V = 0.48/1.05M =0.45714 MpOH = -log(0.45714) = 0.33995pH = 14-0.33995pH = 13.66005
1 Answers 1 views2/58.45= 0.0342molMolarity = 0.0342/0.038= 0.9mol/L
1 Answers 1 viewsMoles =mass ÷molar massMass =2.51gMolar mass =106Moles = 0.0156875
1 Answers 1 viewspercent v/v is (mL ethanol/mL solution)×100.So you have 25.0 mL ethanol/250 mL(25/250)×100 = 10% v/v.
1 Answers 1 viewsMolecular weight of isotonic saline = 58.50.92×58.5 = 53.8253.92/100×100= 53.92%
1 Answers 1 viewsLet V ml of a 10.0% saline solution is consider .So , v* 10 / 100 is the mass of solute .------------------- 1 .To Make Solution of 500 mL of...
1 Answers 1 viewsThe solution is 74.7% pure.
1 Answers 1 viewsSolution:Molarity or molar concentration is the number of moles of solute per liter of solution, which can be calculated using the following equation:Molarity = mol solute / L of solution.Molar mass of sodium...
1 Answers 1 viewsC = n/V n(saline) = m(saline) / M(saline) = 90 g / 58.44 g/mol = 1.54 mol V(solution) = m(solution) / (solution) = 100 g / 1.01 g/mL = 99...
1 Answers 1 views250 ml=0,25 LC=n/V;n=m/M;n(Na2CO3)=2/106=0,02 molC(Na2CO3)=0,02/0,25=0,08 mol/L
1 Answers 1 views