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1) Consider the following chemical reaction.
N2(g) + 3 H2(g) → 2 NH3(g) [balanced]
If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Show all your work to explain your answer.
Molar mass of N2 = 28.02 g/mo
lMolar mass of H2 = 2.02 g/mol
Molar mass of NH3 = 17.04 g/mol
2) Solid potassium fluoride decomposes into fluorine gas and solid potassium. Write a balanced chemical equationfor this chemical reaction. Include the physical state of each substance.
0.0500 M of AgN03 is utilized to titrate 25.00mL containing 0.1000 M NaCl and 0.05000 M KI. Explain what the pAg of the solution is after 15.00mL of AgNO3 is added. ksp of AgCl = 1.82 x 10^-10 and ksp AgI = 8.3*10^17
Which of the following solutions would have the highest pH value. Assume that they are all initially 0.10 M concentrations of weak acid at 25 degree C.
Question- Part 1) Water can be made by combining gaseous O2 and H2. If you begin with 1.5 L of H2(g) at 360 Torr and 23°C, what volume in liters of O2(g) will you need for complete reaction if the O2(g) is also at 360 Torr and 23°C
certain metals can be extracted from their salts usually halides those containing group 17 elements such as chlorine
Assume that the heat of combustion of benzene is -4.18 x 103 kJ/mol. Enter your answer with three significant figures in exponential format (1.23 x 104 = 1.23E4).
A disinfectant states that it will kill 99.9% of bacteria if left on for 45 minutes. What percentage of bacteria are killed if the disinfectant is left on only for 5 minutes
argon copper sodium chloride and carbon dioxide all crystallize in the face centered cubic fcc structure. how can this
A sample of an unknown peptide undergoes a single round of Edman degradation, which liberates ATZ-Gly. Another sample of the peptide is treated with trypsin, and a third sample is treated with chymotrypsin. The table below shows the fragments.
A solution of 20.0 ml 0.4 M NaCh3COO and 30.0ml 0.4 M CH3COOH is prepared. Calculate the pH of acetic acid if the Ka = 1.76 x 10^-5 for acetic acid
Calculate the pH at 25 degree C of .25 aqueous solution of phosphoric acid (H3PO4). (Ka1,Ka2, and Ka3 for H3PO4 are 7.5x10^-3, 6.25x10^-8 and 4.8X10^-13
Consider the molecule phosphorus pentachloride. Explain why the central atom can hold more than eight electrons. Drawing a Lewis structure will help
determine the freezing point depression, delta Tf, for the ionic solution. b. determine m effective for ionic solution. c. determine the van't Hoff factor, i, for the ionic compound.
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