If 50.0 g of CH3OH (MM = 32.04 g/mol) are dissolved in 500.0 mL of solvent, what is the concentration of CH3OH in the resulting solution?
How many moles of CH3OH are there in 50.0 mL of 0.400 M CH3OH?
How many mL of 0.300 M NaCI solution are required to produce 0.150 moles of NaCI?
If 50.0 g of CH3OH (MM = 32.04 g/mol) are dissolved in 500.0 mL of solvent
How many moles of CH,OH are there in 73.0 mL of 0.400 M CH,OH? Attempts remaining: 7 How many moles of HCl are there in 75.0 mL of 0.280 M HCI? Attempts remaining: 7 What is the concentration of a solution made with 0.425 moles of KOH in 400.0 mL of solution? Attempts remaining: 7 What is the concentration of sodium ions in 0.380 M NO.CO,? Attempts remaining: 7 What is the concentration of sodium ions in 0.300 M Na,SO.?...
12. Molarity, M, is defined as A. moles of solute dissolved in 1 mol of solvent. B. moles of solute dissolved in 1 kg of solvent. C. moles of solute dissolved in 1 L of solvent. D. moles of solute dissolved in 1 L of solution. E. moles of solute dissolved in the solution. 13. What volume of 2.50 M NaOH (40.00 g/mol) contains 0.100 mole of NaOH? A. 0.250 L D. 0.250 mL B. 40.0 mL E. 0.0400 mL...
If 42.6 g of CH₃OH (MM = 32.04 g/mol) are dissolved in 500.0 mL of solvent, what is the concentration of CH₃OH in the resulting solution?
How many milliliters of pure liquid methanol (CH3OH, MW = 32.04 g/mol) are needed to prepare 250.0 mL of an aqueous solution of 19.0 g/L methanol? The density of pure liquid methanol is 0.791 g/mL. Then, express the methanol concentration as a volume percent (% v/v).
How many moles of CH3OH are there in 50.0 mL of 0.400 M CH3OH?
6: Suppose 50.0 g of pure potassium hydroxide is dissolved in 250.00 mL water ( Solvent: -0.9987 g/mL). Given the density of the solution is 1.020 g/mL, what will be the molarity of the solution. (Hint: You need to find the volume of the solution)
erksheet 7-Rey 10 A 10.0 mL sample of sodium chioride solution that has a mass of 16.78 g is placed in an Solutions evaporating dish and evaporated to dryness. The residue has a mass of 6.55 g. Calculate the following concentrations for the NaCl solution mass/mass (m/m) percent mass/volume (m/v) percent malarity A 4.00 % (g/mL) KI solution has a volume of 65.0 mL. How many grams of KI are in the sample? How many grams of a 35% (...
5.3307 g of Na2CrO4 (MW 161.97 g/mol) is dissolved in 1000.0 mL of water. Assuming the solution has a density of 1.00 g/mL, what is the concentration of Na (MW 22.9898 g/mol) in the solution in units of a) molarity (M)? Number b) parts per thousand (ppt)? Number ppt c) 25.0 mL of the solution is then diluted to a final volume of 500.0 mL. What is the concentration of Na* in the diluted solution in units of parts per...
Calculate the Kf of a solvent when 50.0 g of NaCl (58.44 g/mol) is dissolved in 250.g of solvent and lowers the freezing point by 6.36°C. (Assume that the solute completely dissociates.) O 0.68 °C/m O 1.36 °C/m O 1.86 °C/m O 0.93 °C/m
A 0.6739 g sample of a pure carbonate, X,CO,(s), was dissolved in 50.0 mL of 0.1850 M HCl(aq). The excess HCl(aq) was back titrated with 24.70 mL of 0.0980 M NaOH(aq). How many moles of HCl react with the carbonate? moles of HCI = mol What is the identity of the cation, X? cation: A standardized solution that is 0.0100 M in Na+ is necessary for a Hame photometric determination of the element. How many grams of primary-standard-grade sodium carbonate...