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Describe the preparation of 12 mL of a 0.050 M solution of each of the halogens, using the reactions in the preceding question. 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 each reagent and the volume of water that must be added for dilution.
a. Chlorine water
b. Bromine water
c. Iodine water
Write down the second period elements (ie. lithium through neon), on order of increasing first ionization energy and Write the electron configuration for a gallium atom.
We assume the first step in this decay series is, by far, the slowest and that all the 206Pb found in the sample is derived from this decay process. How old (in billions of years, where 1 billion = 109) is the rock
Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
What substance ionizes nearly completely in aqueous solutions and produces hydronium ions? a weak base, strong base, weak acid, or strong acid.
Looking at the structures for blue indigo and white indigo, how can you tell that white indigo is the reduced form. What chemical process happens as the fabric dries
a solution of ammonia and water contains 3.30times1025 water molecules and 7.00times1024 ammonia molecules. how many
Two compounds have the same empirical formula. One substance is a gas, the other is a viscous liquid. How is it possible for two substances with the same empirical formula to have markedly different properties?
A 250.0 g sample of french fries is placed in a calorimeter with 500.0 g of water and an initial temperature of 21.0 C. After combustion of the french fries the water has a temperature of 48.0 C
Give the systematic names for the formulas, or the formulas for the names. (Type your answer using the format copper(II) chloride for CuCl2, and using the format CO2 for CO2. Omit the centered dot for hydrates.) (a) NaNO2 (b) tin(IV) chloride (c) ..
how many grams of sucrose c12h22o11 must be added to 500.0 g of water at 100 degc to change the vapor pressure to 752
a solution of malonic acid h2c3h2o4 was standardized by titration w.1000m naoh solution. if 20.76 ml of the naoh
calculate the PH of a buffer solution prepared by dissolving 21.5 g benzoic acid and 37.7g sodium benzoate in 200.0 mL of solution?
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