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An unknown solution of alkaline earth metal nitrates gave a white precipitate when an ammonium sulfate solution was added. After the precipitate was removed by centrifuging, a white precipitate formed when ammonium oxalate was added to the remaining supernatant liquid. Identify the cations that were present and write blanced chemical equations for the reactions.
If 60.00 mL of water is added to 40.0 mL of 4.00 Molarity NaC1, what will the concentration of the new solution be
The specific heat of the brick is 0.85 J/g-K. How many bricks must be incorporated into the interior of the house to provide the same total heat capacity as 1.1 103 gal of water
What impurity is most likely to be presented in the sample of aspirin you prepared? Wjat effect would this impuruty have if the product were intended forhuman consumption
When 25g of magnesium reacts with 75g of hydrochloric acid it produces 95g of magnesium chloride and hydrogen gas.
calculate the mass of nitrogen dissolved at room temperature in an 99.0 rm l home aquarium. assume a total pressure of
The water level in a graduated cylinder initially at 211 rises to 282 after a piece of lead is submerged. What is the mass in grams of the lead.
When the reaction is conducted in this way, however, a polymeric product is produced after step 1. What is the structure of the polymer? Why does p-acetamidobenzenesulfonyl chloride not produce a polymer
a sample of gas is collected over water at a temperature of 35.0c when the barometric pressure reading is 707 torr.
How many atomsof carbon are present in 34.5 grams of caffeine?
What are the concentrations of HOAC and OAC- in a 0.2M acetate buffer pH 5.0? The Ka for acetic acid is 1.70 X 10-5 (pKa = 4.77).
Consider the synthesis of benzocaine. If a factory starts with 407 kg of pure 4-aminobenzoic acid and ends up with 433 kg of benzocaine, what are their theoretical and percent yields?
Suppose a 4.00 L nickel reaction container filled with 0.0051 M H2 is connected to a 4.00 L container filled with 0.078 M F2. Calculate the molar concentration of H2 at equilibrium.
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