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1. The hydrated salt is overheated and the anhydrous salt thermally decomposes, with one of the products being a gas. What will be the effect on the value reported for the percent water (too high, too low, no difference)? Briefly explain.The
2-The student handles the crucible with his bare fingers (oily) after the mass measurement butbefore the crucible is fired for the first time with ~3g hydrated salt. The oily residue burns away during firing as the water evaporates. What will be the effect on the value reported for the percent water (too high, too low, no difference)?
3.Initial and final mass measurements of the crucible, lid and contents are performed only at room temperature. Why is this important, and what will be the effect on the value reported for the percent water (too high, too low, no difference) if the crucible, lid and contents are measuredwhile hot? Briefly explain.
a robust first grader goes for swimming lessons three times a week and he enjoys it thoroughly. during the first week
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.00 L of solution
List the letter that corresponds to the reagent from the reagent table you need to carry out the following synthesis in 5 steps or less. Heat may not appear on the reagent table with the reagent
a) Using the value Ecell = 0.68V, calculate the [Ag+] in the test solution after equilibrium is reached. b). Setup a reaction table for equation above and calculate the formation constant for Ag(S2O3)23-.
How many mL of 0.50 M acetic acid must be added to 20 mL of 0.20 M sodium acetate to yield a buffer of pH = 4.00
"Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process".
What is the value of the equilibrium constant for transformation of carbon from graphite to diamond at 810.0 C?
what are the concentrations of rm a and rm b after seventy seconds if the initial concentration of rm ab is 0.230m and
how many grams of benzene are needed in 46.3 grams NaBr (103 g/ mol)? the freezing point of solution to 3.94 degree C?
A person weighing 85 kg running at 16 km/hr requires 4245 kJ of energy per hour. How far must this person run to consume the energy contained in 0.770 kg of sugar?
Discuss the relationship between the proper functioning of enzymes and the tertiary structure of proteins
What wavelength corresponds to the transition n=5 to n=3 in the hydrogen atom. What type of radiation is this
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