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Aluminum will react with bromine to form aluminum bromide (Al2Br6). What mass of bromine (g) is needed to form 1.03 mol of Al2Br6? Do not enter units with your answer.
When 56.6 g calcium and 30.5 g nitrogen gas undergo a reaction that has a 90.0% yield, what mass of calcium nitride forms?
Ca +N2 => Ca3N2 (unbalanced)
Calcium reacts with sulfur forming calcium sulfide. What is the theoretical yield (g) of CaS(s) that could be prepared from 1.58 g of Ca(s) and 4.74 g of sulfur(s)? Do not type units with your answer.
Calculate the following quantity:
Volume in milliliters of 0.09 M adenosine triphosphate (ATP) that contains 174 mmol ATP.
A 500 ml volume of helium gas is at a pressure of 750 mm Hg and has a temperature of 30 degrees celcius. What is the volume of the same gas at STP?
THF followed by basic peroxide and then acid. Give thpse three products; use arrows demonstrating electron movement to show details of the reactions, including the peroxide cleavage of the B-C bond.
What is the de Broglie wavelength (in nm) associated with a 2.50-g Ping Pong ball traveling 35mph?
For a given reaction, which of the following statements can be made about the value of the equilibrium constant? It always remains the same.
If 42.1 mL of 1.02 M sodium hydroxide, measured using a graduated cylinder, is placed in a beaker filled with 300 mL of DI water, what is the concentration of the diluted NaOH solution
what is the value for deltaS if 20g of a substance (MW=78.0g/mol) is boiled at 50 degrees C
Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction:
a nitrogen molecule is confined in a cubic box of volume 1.00m3. assuming that the molecule has an energy equal to
We would like to make a buffer solution with a target pH of 8.44 (ignore activity). Suggest 3 conjugate acid/base pairs that could be used to make such a buffer.
Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. Which do you think will be the major product? Explain your reasoning
Barium chromate dissolved upon treatment with nitric acid forming an orange solution. Write a net ionic equation to represent the overall reaction that occurs.
Using oxidation and reduction half-reactions, balance the skeletal equation: N_2H_4(g) + ClO_3 -(aq) --> NO(g) + Cl-(aq) of hydrazine with chlorate ions.
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