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Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq)
A patient needs 0.004g of a sulfa drug. There are 5.00mg tablets in stock. How many tablets should be given.
In a butane lighter, 9.8 of butane combines with 35.1 of oxygen to form 29.6 carbon dioxide and how many grams of water.
The mixture is ignited with a spark and it reacts to form H2O (l)liquid water. determine the temperature of water?
What is the specific heat for the metal if It takes 48.0J to raise the temperature of an 8.60g piece of unknown metal from 13. Degree Celsius to 24.3 degree celsius?
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
A 50.0-L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the mixture, producing water.
A 2.50 g sample of white solid was vaporized in a 345 mL vessel. If the vapor has a pressure of 985 mmHg at 180°C, what is the molecular weight of the solid.
You are given trhat 0.01 m aqueous solutions of each of the given solution as, C6H12O6, K3PO4, CaCl2 , NaI you jutst need to place the given solutions in order of increasing change in the freezing point of the solution.
A flask contains 0.330 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.
If ΔH = -60.0kJ and ΔS = -0.200kJ/K , the reaction is spontaneous below a certain temperature. Calculate that temperature. Express your answer numerically in kelvins.
At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol).
a buffer is prepared by mixing .200 mole of formic acid with .300 mole of sodium formate in a volume of 200 ml what is the initial ph.
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