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Calculate final pH resulting from the addition of 5.0 mmol of strong acid to the buffer solution made from 0.150 L of 0.50 M NH4Cl and 0.100 L of 0.25 M NaOH. pKa(NH4+)=9.25.
calculate the minimum volume of distilled water in liters necessary to completely dissolve a 7.5 g sample of agbr s at
Problem- A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.27 M KOH solution. The H3O+ concentration after the addition of 80.0 mL of KOH is
when the following reaction is balanced in acid solution using the lowest possible whole number coefficients the
Calculate the maximum non-expansion work that can be done on the surroundings from the combustion per kilogram of H2(g) at constant pressure and 298.15K.
A microwave oven operates at 2.50GHz. What is the wavelength of the radiation
How could you bring about the subsequent conversions. You must give the needed reagents and conditions and write and equation.
if the naturally occurring level of hydrogen-3 half life12.6 years in fresh wines is 535 d minl decay eventsminute per
the haloform reaction using i2 and naoh is referred to as the iodofom test for methyl ketones. the test also gives
use a sketch to show the change that occurs as a sulfur atom becomes a sulfide ion. describe how the distance from the
how many grams of iron will react with water to form iron (III)oxide and 85 liters of hydrogen gas at 19 degrees celsius & 525 torr?
How much heat (in ) is evolved in converting 1.00 of steam at 130.0 to ice at -50.0? The heat capacity of steam is 2.01 and of ice is 2.09
in the formula sodium phosphate na3po4 how many moles of sodium are represented? how many moles of phosphorus? how many
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