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Calculate the pH of a solution containing 0.15 M acetic acid and 0.25 M sodium acetate. For acetic acid, Ka= 1.8 X 10-5. Either as a buffer system or use ICE table. NaOAc is strong electrolyte
A 0.358 g sample of KAu(CN)2, has 7.48 x 1020 atoms of Au. How many atoms are in this entire sample?
An oxygen cylinder has a volume of 50.0 liters and a pressure of 200.0 atmospheres. If this cylinder is used to supply oxygen to a patient at a flow rate of two liters/minute ( at 1.00 atm pressure) how long will the take last
Standard Temperature and Pressure of Chlorine, Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of Cl2 gas is 8.70 L at 895 torr and 240C.
What are the net ionic equations for the redox reactions
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 5,284kJ of heat is needed from the combustion, how much carbon (g) must be consumed
The tube is filled with water and inverted into a pail of water. If the atmospheric pressure is 755 mm Hg, how high in mm h2o is the column of water in the tube
What is the concentration of an NaOH solution that requires 50.0 ml of a 1.25 M H2SO4 solution to neutralize 78.0 ml of NaOH?
no2nbspreacts with f2nbspto give no2nbspaccording to the following overall reaction2no2g f2g rarr 2no2fgwhat is the
When 79.272 cg of nitrogen gas is reacted with 79.272 cg of hydrogen gas, how many grams of ammonia are formed?
An aqueous solution of a compound with a very high molar mass was prepared in a concentration of 29.7 g·L-1 at 25 °C. Its osmotic pressure was 0.184 ·102 Pa. Calculate the molar mass of the compound
A disk has a moment of inertia 3.0 x 10-4 kg. m2 and rotates with an angular speedof 3.5 rad/sec. What net torque must be applied to bring it to rest within 3 s.
What would account for the exothermicity that might occur when ammonium hydroxide is first added to the crude 4-acetamidobenzenesulfonyl chloride
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