What volume of glacial acetic acid 18 m and what weight of
What volume of glacial acetic acid (18 M) and what weight of sodium acetate trihydrate (CH3COONa•3H2O) are required to make 100 mL of 0.2 M buffer at pH 4.50 (pKa of acetic acid is 4.74)?
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the density of gold is 193 gcm3 a 34 mg piece of gold is hammered into a square trhat is 86 x 10-6 cm thick what is the
an energy efficiency project has a first cost of 300000 a life of 10 years and no salvage value assume that the
a new machine will cost 25000 the machine is expected to last 4 years and has no salvage value if the interest rate is
a fire hydrant is supplied through a 6 inch cast iron pipe of 16000 feet length the total drop in pressure is limited
what volume of glacial acetic acid 18 m and what weight of sodium acetate trihydrate ch3coonabull3h2o are required to
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a vessel contains 090 g liq h2o in equilibrium with water vapor at 30c at this temperature the vapor pressure of h2o is
describe the preparation of 250 ml of 06 m triethanolamine buffer ph 72 from the free amine and 10 m hcl pk for the
a core sample of basalt 4 inches long and 2 inches in diameter was tested in unconfined compression the basalt is known
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