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- How many ml of a sodium hydroxide solution with a concentration of 40g/100cm3 should be measured out to prepare 200cm3 of 0.5M solution?What molarity of HCI stock solution is needed so that 2.5mL of this stock solutiondiluted to 0.025L will yield 25mM?fine the mass (g) of the solute 135ml of 2.01M HNO3
- What is the pH at 25 °C of water saturated with CO2 at apartial pressure of 1.10 atm? The Henry’s law constant forCO2 at 25 °C is 3.1 x 10-2 mol/L-atm.Prepare 750ml of 1.5M KNO3. Show complete solutionWould a 0.85 M soln of HPO4-2 be considered strong/weak and concentrated/dilute? A. concentrated, strong B. dilute, strong C. dilute, weak D. concentrated, weak
- 3.) In the assay of NaHCO3, 3.0g of the solid is dissolved in 25mL water. What is the normality? How many mL of 1N H2SO4 will be required to neutralize this solution? From this volume of acid, compute the percent purity of NaHCO3.In which situation(s) is it necessary to use a volumetric flask for maximum accuracy? to prepare a 0.150M solution of sodium chloride to measure ~25mL of water to prepare 0.1M HCI from 36-38% HCI a and c all of the above (Please type answer no write by hend)An aqueous solution of a weak acid HA (MW=100.0 g/mole) has a mole fraction of HA of 0.23, and a density of 1.24 g/ml. Determine: Molarity _______________% mass HA _______________