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Calculate the volume of glacial acetic acid (17.6M) and eight of sodium acetate (mm=82.03) that is required to make 102 mL of 0.2M buffer at ph 4.85. The Ka of acetic acid is 1.4*10^-5.
Calculate the energy in joules and calories required to heat 40.0 silver (Ag) from 112 C to 270 C
modern seawater is 0% while the average value of the polar ice cap is -45%. The ice cap holds 2wt% of the oceanic water. Calculate the delta 18 O value of an ice-free ocean.
Determine that how many moles of molecular hydrogen are used per mole of the precatalyst in order to convert it entirely to platinum metal?
How many theoretical plates does the column have? What is the plate height (in mm) of the column if the column is 11.7 cm long?
Calculate the amount of vitamin C in mg that are titrated by one milliliter of the 0.05N iodine solution.
Draw the structure of the geometric isomer of 2-pentene that has the lower melting point.
Indicate the solubility of the following solutes in 100 g of water
Dry the hydrate as instructed in the lab procedure, noting down it's mass until it appears to no longer decrease (no more water bound in the sample).
Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C
here why is the -NHCOCH3 group less activating in electrophilic substitution compared to the -NH2 group
converted completely to another molybdenum oxide by adding oxygen. The new oxide has a mass of 17.63 g. Add subscripts below to correctly identify the empirical formula of the new oxide.
Using curved arrows to show electron movement and bond formation write a reaction mechanism for the acid catalyzed reaction
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