A 551 ml container of 70% (v/v) Isopropanol (rubbing alcohol) contains how many mL of isopropanol? Select one: O a. 551 mL o b. 386 mL O c. 787 mL CO d. 38,600 mL O e. 7.87 mL

Calculate the quantity (mL) of glycerin needed to prepare 250 mL of the following ophthalmic solution. Report your answer to 2 decimal places. DO NOT include units. Erythromycin lactobionate Dexamethasone sodium phosphate Glycerin Sterile water for injection, ad 500 mg 100 mg 2.5 mL 100 mL

MISSED THIS? Read Section 14.5 (Pages 594-601); Watch WE 14.3. Part A Apotassium bromide solution is 8.08 % potassium bromide by mass and its density is 1.03 g/mL. What mass of potassium bromide is contained in 35.9 mL of the solution? O 2.82 g O 2.99 g 4.58 g O 2.90 g

Data Table Mass of Zn HCI Volume Tinitial Tfinal 0.55 g 100.0 mL 20.0 °C 23.1°C The density of the 6M HCI is 1.07 g/mL. Which of the following shows how to convert the volume of the solution used into grams of solution? O a. 100.0 mL x 1mL 1.07 g Ob. 1.07 g 100.0 mL 1.07 g 1ml OC. 100.0 ml x The amount of heat absorbed by the solution can be found using the equation q = m x SH x AT. It can also be written as qsolution = msolution X SHsolution X ATsolution: We can assume that the specific heat of the solution is the same as the specific heat of water which is 1.00 cal/(g °C). Data Table Mass of Zn HCI Volume T;initial Tfinal 0.55 g 100.0 mL 20.0 °C 23.1°c Which of the following shows the correct calculation of gsolution? cal "x 3.1°C g°C O a. 100.0 mL x 1.00 Ob. cal 107 grams x 1.00 g °C х 3.1°C 0.55 grams x 1.00 cal х 3.1°C g °C

f. Make 750ml of a 250mM NaCl, 25mM Tris solution. C₁=251 CABO VA 230 g. Make 50ml of a 15g/L NaOH solution

A bottle of champagne is 11%% (vv/vv) alcohol. If there are 500 mLmL of champagne in the bottle, how many milliliters of alcohol are present?

calculate the composition - mass/mass%  of 46.8g Kcl per (6.00x10^2 ml solution (d=1.14g/ml) ___ %kcl

I want to make a cleaning solution for concentrate. The concentration is 20 % solution.I need 1L (1000ml) of 4% cleaning solution. a. How much cleaning solution concentrate should I add to my container? b. How much water should I add to make the final volume 1000ml?

What following are ways to express percent concentration? 1. m/v 2. m/m  3. v/v 4. Two of the above are used to express percent concentration 5. All of the above are used to express percent concentration

10. A volumetric flask contains 25.0 mL of a 14% m/V sugar solution. If 2.5 mL of this solution is added to 22.5 mL of distilled water, what is the % m/V of the new solution. O 1.4 % m/V 14 % m/V O 7.1 % m/V O 71 % m/V