Calculate % v/v when 35 mL ethanol is added to enough water to make 250 mL solution.
Calculate % v/v when 35 mL ethanol is added to enough water to make 250 mL...
5.0 g of solid Al(NO3)3 was added to enough water to make a 100.0 mL solution. Al(NO3)3 is very soluble in water. 1. Write out the dissolution reaction that occurs when the solid Al(NO3)3 was added to water. 2. What is the concentration, in Molarity, of Al(NO3)3 once it is dissolved in the water? 3. If 53 mL of water was added to the original Al(NO3)3 solution described above, what is the new concentration in Molarity? 4. What is the...
Calculate the molarity for each solution. 87.2 g of Na2SO4 in enough water to make 500. mL of solution 61.8 g of NH3 in enough water to make 7.00 L of solution 100. mL of ethanol (C2H5OH) in 500. mL of solution (The density of ethanol is 0.789 g/mL.)
a. What is the new % (m/v) concentration when water is added to 25.0 mL of 20.0% (m/v) NaOH to make 300.0 mL of a diluted NaOH solution? b. What is the new molarity of the solution when water is added to 125.0 mL of 2.50 M NaOH to make 300. mL of a diluted NaOH solution?
A 0.372-g sample of NaOH(s) is added to enough water to make 250.0 mL of solution. The pH of this solution is:
0.5 mL of 1% (w/v) coagulant is added into 250 ml of raw water. 0.1 mL of 0.1% (w/v) polymer is added into the water sample with coagulant. What is the mass concentration of flocculant in mg/L
A 4.50 g mass of solid Al2(SO4)3 is added in enough water to make 125 mL of solution. What is the molarity of Al3+ ions in the final solution?
If 2.50 g of calcium bromide, CaBr2, is dissolved in enough water to make 250 mL of solution, what is the concentration of bromide ions? (Molar mass of CaBr2: 199.9 g/mol) 0.100 M 0.150 M 0.0500 M 0.0125 M 0.0250 M
a. A student dissolved 20.00 g of Na2SO4 in enough water to make 250 mL of stock solution. How many mL of the stock solution would the student need to use in order to make a 150 mL of 0.100 M solution? b. In an acid-base titration, 82.56 mL of 0.175 M NaOH titrant reacts with 100.0 mL of an unknown concentration of HCl solution. What is the density of the HCl solution?
Question 15 1 pts A bottle of cold medicine contains 25% (v/v) ethyl alcohol (ethanol) in water. . In 125 mL of medicine, how much ethyl alcohol is there (in mL)? Ethyl alcohol is C2H60 and has a density of 0.789 g/mL. What is the molarity of the solution? . Question 16 1 pts If you make a solution by using 45 g glucose (C6H12O) and add enough water to make 250.mL of solution: . What is the % (m/v)...
Determine the molarity of a solution made by dissolving 0.228 moles of ethanol in enough water to make 250.0 mL of solution