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A 25.0-mL sample of household bleach was diluted to 500mL in a volumetric flask. An unmeasured surplus of KI was added to a 20.00-mL aliquot of the diluted sample the iodine liberated in the reaction OCl- + 2I- + 2H = I2 + Cl- + H2O needed 34.50mL of 0.0409 M Na2S2O3. Compute the weight-volume percentage of NaOCl in the sample.
A cylinder with a moveable piston contains 0.84 mol of gas and has a volume of 328 mL. What will its volume be if an additional 0.27 mol of gas is added to the cylinder? (Assume constant temperature and pressure.)
How many moles of B2O3 can theoretically be obtained from 4 moles of B5H9 and excess O2. How much B5H9 must be reacted with O2 to produce exactly 100 g of B2O3
What is the pH of a solution made by adding 6.21 grams of sodium fluoride to 391 ml of 0.317 M hydrofluoric acid (assume no change in volume takes place)
Draw and construct the open-chain model of glucose, How many chiral carbons are in the open-chain version of glucose?
Write the equations that represent the first and second ionization steps for selenic acid (H2SEO4) in water.
the solubility of phthalic acid is 0.54 grams100 ml at 14oc and 18 grams100ml at 99oc.1 how many milliters of boiling
if i have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 liter what will the new pressure inside the piston be?
State the composition and the properties of the ketohexose derived from fruit jam. Describe the manner in which ketohexose acts as a reducing sugar in the test.
Given tyrpsin digest yields the following amino acid sequences: k, tyk, wag, and spwr and a chymotyrpsin digest yields ag, rw, ty, and kkspw. what is the primary amino acid sequence of the antibiotic peptide
which of the solutions included in this experiment could be used to distinguish between the pairs of solutions. In each case, describe the observations you would make and write a net ionic equation for any reaction that would occur.
Mixing 20.0mL of a 3.00 M sugar solution with 30.0mL of a 5.00 M sugar solution results in a solution with what molar concentration?
Which of the following is an appropriate conversion factor to convert from feet to inches? Choose one: 1 inch / 12 feet 1 foot / 12 inches 12 inches / 1 foot 12 feet / 1 inch 1 inch / 2.54 cm
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