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When an aqueous solution of K2CrO4 is mixed with an aqueous solution of AgNO3, a brown precipitate forms. a) Write the balanced molecular equation (including all products and phases) for this reaction. b) write the complete ionic equation for this reaction (including phases). c) write the net ionic equation for this reaction (including phases).
500 ml of 0.150m sodium hydroxide is mixed to 595 ml of 0.200m weak acid determine nbspthe ph of the resulting buffer
Light travels extremely rapidly (c = 3.00×10^8 m/s ). Suppose you had to travel 20 miles to work every day. If you traveled at the speed of light for the entire trip, how long would it take you to get to work (in seconds)? [1 mile = 1.61km]
Another beverage that uses FD&C Yellow #5 (M = 534.36 g/mol) for its distinctive color is Gatorade Lemon-Lime. The literature value of the molar absorptivity of FD&C Yellow #5 at 430 nm is E = 2.43 x 10^4 M^-1 cm^-1.
Determining Copper in Brass, 1st I titrated Na2S2O3 and determined the molarity to be 0.164. I am having trouble with the calculations for the dissolution of brass.
butane reacts with oxygen in the air to form carbon dioxide and water. how many moles of carbon dioxide can be formed
a sample of gas occupies a volume of 445 ml at a temperature of 274 k. at what temperature will this sample of gas
A 354 gram sample of C6H12O6 has a pressure of 648 torr at 31°C. What is the volume (L) of the container?
an empty flask has a mass of 123.4 g. when the flask is filled with water the mass is 211.6 g. if 10.0 g of zinc d
If the pH of the weak acid solution in is 2.34 after 7.20 mL of the NaOH was added, what is the Ka of the acid?
Determine the vapor P lowering, freezing point depression, boiling point elevation, and osmotic pressure when the sample is dissolved in 10.0 g water
Dissolving 4.69g of an impure sample of calcium carbonate in hydrochloric acid produced 1.07 L of carbon dioxide (measured at 20.0 degrees Celcius and 737mmHg). Calculate the percent by mass of calcium carbonate in the sample.
Calculate the average atomic made of boron which has 2 isotopes. Boron-10 has an abundance of 19.9% and boron-11 has an abundance of 80.1%.
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