What is the molar mass of sodium hydroxide? - Socratic
WEBTruong-Son N. May 13, 2016. The molecular molar mass consists of the atomic masses of each atom. Sodium hydroxide is NaOH. Thus, its molar mass involves: MNa = 22.989 g/mol. MO = 15.999 g/mol. MH = 1.0079 g/mol. So, its molar mass is 22.989 + 15.999 + 1.0079 = 39.996 g/mol to 5 sig figs.
How many grams of NaOH are required to prepare 200 mL of a 0 …
WEBAug 4, 2016 · 0.450 mol 1 L ×0.200 L = 0.09 mol. To obtain the mass of solute, we will need to the molar mass of NaOH, which is 40.00 g/mol: Finally, multiply the number of moles by 40.00 g/mol. 0.09mol × 40.00g 1mol = 3.60g. 3.60g of NaOH is required to prepare that solution Let's begin with the equation for molarity: We are given the molarity and the ...
Solved Experiment 8: Determination of the molar mass and - Chegg
WEBThen to determine the molar mass, the calculation is as follows: 7.72 g HA 1L soln L soln 0.12 mol = 64.33 mol 64-8 HA A technique known as half-titration can now be used to determine the pk of the weak acid. In this experiment, the half-titration point will exist when you have added half the volume of NaOH needed to fully titrate the acid.
What is molarity of a solution containing 10 g of NaOH in
WEBMar 13, 2018 · 1 Answer. Molarity is a concentration term in which the no. of moles and the volume are related. Molarity (c) = no. of moles (n) volume in L (V) Here. n = 10 g 40 g/mol. V = 500 mL = 0.5 L. So. c = n V. "0.5 molar" Molarity is a concentration term in which the no. of moles and the volume are related.
Molarity - Chemistry - Socratic
WEBTo get the molarity, you divide the moles of solute by the litres of solution. "Molarity" = "moles of solute"/"litres of solution". For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of solution. To calculate the molarity of a solution, you need to know the number of moles of solute and the total volume ...
Solved Sodium hydroxide, NaOH, is a strong base that is used
WEBWhat is the mass of 2.80 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)? Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper. There are 2 steps to solve this one.
How many grams of NaOH are needed to prepare 800 mL Of 0.8 …
WEBAug 18, 2016 · The molecular weight of NaOH is given as 40.00 g / mole. Hence, 1 mole would weigh 40.00 g. A 0.8 M solution contains 0.8 moles per liter (molarity is moles per liter). Hence, in 1 liter there would be 0.8 x 40.0 g of NaOH, which is 32 g. However, we have 800 ml, not 1 liter, and 800 ml is 0.8 liters. So, we would have 32 x 0.8 g, which is: …
Solved PQ-9. A solution is made by dissolving 60g of NaOH - Chegg
WEBQuestion: PQ-9. A solution is made by dissolving 60g of NaOH (molar mass - 40 g mot enough diled water to make 300 ml of a stock solution. What volumes of this solution and distilled water, when mixed. will result in a solution that is approximately 1 M NaOH2 mL stock solution ml. distilled water 20 80 100 1 20 (B) 60 (C) 30 60 AD) 90.
Calculate the number of grams of NaOH needed to prepare 2.00
WEBApr 18, 2018 · Explanation: Molarity is given by. Molarity = Moles of solute Volume of solution (in litres) 2.00 M = n 2.00 L. n = 4.00 mol. Molar mass of NaOH is 40 g/mol. So, mass of NaOH needed is. 4.00mol × 40 g mol = 160 g.
Solved Calculate the expected concentration of the NaOH - Chegg
WEBThe molar mass of NaOH is 39.997 g/mol. concentration of NaOH : Calculate the expected mass of benzoic acid required to react with 20.00 mL of the NaOH solution. The molar mass of benzoic acid is 122.12 g/mol. mass of benzoic acid: Experiment 1: Standardize an NaOH Solution Using Benzoic Acid as the Primary Standard Part 1: Prepare the NaOH ...