A sports drink contains 22 g of soluble complex carbohydrates
in 8.4 oz (1 oz = 29.6 mL). What weight/volume percent
concentration does this represent? _______% (w/v) complex carbohydrates |
A sports drink contains 22 g of soluble complex carbohydrates in 8.4 oz (1 oz =...
A cup of Starbucks brewed coffee contains 15.2% caffeine by mass. What volume of this drink solution in milliliters contains 53.8 g of caffeine? (density of water is 1.00 g / mL). 2. How much caffeine (C8H10N4O2) in grams is contained in a 16 oz cup?
In 1 L of Mannitol Salt Agar there is 1 g of beef extract. Convert this to a weight over volume percentage (%w/v) and report your answer rounded to two decimal places. Do not include units in the answer block. Percent weight over volume (%w/v) is the weight of the solute in grams divided by the volume of the solvent in mL times 100. It is essentially expressing the grams of solute per 100 mL of solvent. In 1 L...
1) In 1 L of Mannitol Salt Agar there are 75 g of sodium chloride. Convert this to a weight over volume percentage (%w/v) and report your answer rounded to two decimal places. Do not include units in the answer block. Percent weight over volume (%w/v) is the weight of the solute in grams divided by the volume of the solvent in mL times 100. It is essentially expressing the grams of solute per 100 mL of solvent. 2) In...
WORKSHEET 9 5. A 14 oz. can of hair spray contains 414.0 mL of a gas mixture containing polymers and propellant at ambient temperatures. A typical can contains 80% propellant by weight. Assume the gas is 100% propellant made of isobutane (CH). The density of isobutane is 2.51 g mL. If the amount of gas were doubled under constant pressure, what volume (in mL) would the gas occupy? Assume an ideal gas. A: 828
Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 567 g NaOH(s) per liter of solution. Calculate the molarity of this saturated NaOH(aq) solution. concentration: If 8.67 g of CuNO, is dissolved in water to make a 0.250 M solution, what is the volume of the solution in milliliters? volume: mL
The sodium content of a popular sports drink is listed as 235 mg in a 32-oz bottle. Analysis of 19 bottles indicates a sample mean of 241.4 mg with a sample standard deviation of 24.3 mg. (a) State the hypotheses for a two-tailed test of the claimed sodium content. a. H0: μ ≥ 235 vs. H1: μ < 235 b. H0: μ ≤ 235 vs. H1: μ > 235 c. H0: μ = 235 vs. H1: μ ≠...
Solution, dilution, concentration problems: Please answer 1-5 and show all work 1. How many grams of MgCl2 are required to prepare 200 ml of a 0.35 M solution (MW of MgCl2 = 95.2)? 2. Express the concentration of the solution in problem #1 in terms of g/liter. 3. Express the concentration of the solution in problem #1 in terms of %w/v. 4. A solution contains 160.0 g of ferrous ammonium sulfate (MW = 392.1) in 500 ml of solution. What...
Typical seawater contains 28 g of wdium chloride ( NCI, FW 5844) per 100 ml. (density 1.10) g/ml.). What is % (w/w, weight/weight) concentration of NaCl in the seawater? (20 points) a 2.45 % b. 2.55 % e. 2.65% d. 2.75% e. 2.85%
Hello please answer all you can! :D Pre-Laboratory Assignment 2 Name: Section: Date: Beverage Density Lab 1. If the following mass and volume data are used to calculate the density of solution, how many significant figures are allowed in the calculated density? Mass of solution = 12.53 g; volume of solution - 8.27 ml 2. Calculate the density of the solution described in Question 1. 3. According to its nutrition label, orange soda contains 49 g of sugar per 355-mL...
1.) An isotope has 9 protons and 10 neutrons. The isotope has a charge of -1. How many electrons does this isotope have? 2.) An atom called X is bonded to another atom by a triple bond. What is the maximum number of additional atoms that can be bonded to X and still conform to the octet rule? 3.) One tablet of Tums antacid contains 500.0 mg of calcium carbonate. When calcium carbonate reacts with hydrochloric acid (from gastric juices), carbon dioxide gas,...