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...
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:
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?
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. 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
Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume density of water is 1.00 g/mL and no heat is lost to the calorimeter. IVO AQ o 2 ? Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 12 g of methanol from 26°C to 78°C ? IVO AO + O 2 ?...
From a 95% ethanol (ETOH) stock solution, you need to make 250 mL of 70% ETOH. How much stock and how much RO water do you need to make this solution- Show your work.