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Describe the preparation of 12 mL of a 0.050 M solution of the following halogen, using the reaction below. Available to you are solid Ca(OCl)2; 0.20 M solutions of NaCl, NaBr, NaBrO3, and CuSO4,; a 0.40 M solution of NaI; a 0.50 M solution of H2SO4; distilled water; and a 10-mL graduated cylinder (where volumes can be read to the nearest 0.1 mL). Calculate the required quantity of the reagent and the volume of water that must be added for dilution.
chlorine water
2H+(aq) + OCl-(aq) + Cl-(aq) -- Cl2(g) + H2O(l)
You are given 10 g of a mixture FeO and Fe2O3. Complete reduction of this mixture yields 7.46 calculate mass of pure Fe. Calculate the mass of FeO and Fe2O3 in the original sample
Is there an analytical technique we could employ to verify that the camphor is also racemic? What type of instrument would you use? What kind of results would you expect from a racemic product?
how many liters of o2 can be made from 342 g of h2o2?the density of h2o2 is 1.463gml and the density of o2 is 1.428 gl.
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations
Write a chemical equation for HF(aq) showing how it is an acid or a base according to the Arrhenius definition. Write a chemical equation for Ba(OH)2(aq) showing how it is an acid or a base according to the Arrhenius definition
what is the concentration of chromium ion present in a 0.07092 M solution of potassium hydroxide in contact with a large excess of a precipitate
What pressure is needed to confine an ideal gas to 102.0 L after it has expanded from 8.0 L and 1.0 atm at constant temperature
The equilibrium constant, K, for the reaction shown below has a value 1.8 x 105. In this reaction which is the strongest acid and which is the strongest base
What is the pressure inside the system when the stopcocks are opened. Assume that the lines connecting the bulbs have zero volume and that the temperature remains constant.
Draw Lewis structures for the following molecules and label each with the appropriate geometry. CO, NH3, HNO3, H2O2, O3, C2H2, and C2H4
A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL of water and 3 drops of phenolphthalein indicat..
Suppose that 1.06 g of rubbing alcohol (C3H8O) evaporates from a 64.0-g aluminum block. If the aluminum block is initially at 38°C, what is the final temperature of the block
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