What is the % w/v when 80 mL of a 2.0% solution is mixed with 50 mL of a 6.0% solution?
When 50ml of 0.10M HCl is mixed with 50 ml of 0.30M NaOH, what
is the approximate pH of the resulting solution?
When 50 mL of 0.10 M HCI is mixed with 50 mL of 0.30 M NaOH, what is the approximate pH of the resulting solution? (B) 7 (C) 9 (A) 1 E) 13 ** (D) 11 . *
1. If you mixed 250.0 mL of 1.200% (w/v) fructoe (MW=180) solution with 600.0 mL of water. what would the concentration of fructose be in units of parts per million? 2. Suppose you had an alcoholic beverage with a concentration of 5.0%(w/v) ethyl acohol (MW=46.0). what is the molarity?
Mixed Percent Ldiculations B Progesterone, micronized 4g Glycerin 5 mL Methylcellulose (1%) solution 50 mL Cherry syrup ad 100 mL (a) What is the percent concentration (w/v) of progesterone in the prescription: (b) What is the percent concentration (w/v) of methylcellulose in the prescription?
What is the mass of NaOH necessary for preparing 250 mL 50% (w/v) solution?
A 50 ml sample of a 1.0 M solution of CuSO4 is mixed with 50 mL of 2.0 M KOH in a calorimeter. The temperature of both solutions was 23.9°C before mixing and 33.5°C ofter mixing. The heat capacity of the calorimeter is 12.1 J/K. From these data, calculate AH for the process: CuSO4 (1M) + 2KOH (2M) - Cu(OH)2 (8) + K2504 (0.5M) Assume that the specific heat and density of the solution after mixing are the same as...
A solution is made by mixing 50 mL of 2.0 M K2HPO4 and 25 mL of 2.0 M KH2PO4. The solution is diluted to a final volume of 200 mL. What is the pH of the final solution?
What is the Co2+ concentration after 50 mL of a 0.030 M Co2+ solution is mixed with 50 mL of a 0.050 M EDTA solution at pH 10?
2. How many ml of a 50% w/v acetic acid solution are required to prepare 1 L of 5% w/v acetic acid? 3. How many ml of concentrated HNOs are required to prepare 2L of 0.15N HNOs? 4. How many milliliters of a stock solution of 20% w/v NaOH are required to prepare 800 ml of a 2.5% w/v solution? 5. Suppose that you start with a 5X solution A and you want a final volume of 10 microliters of...
what is I1, I2, and I3?
14.0 V 4.0 + 10.0 v 6.0 w 2.0
ethyl alcohol stock solution: 6.0% (w/v) Needed final concentration: 0.30% (w/v) Needed final volume: 50.0 mL 1. Calculate the number of grams of ethyl alcohol in 2.5 mL of stock solution. 2. Calculate the number of grams of ethyl alcohol in 50.0 mL of prepared final solution.