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In the unbalanced reaction, Sn + HNO3 ---> Sn(NO3)2 + H2), 2.100 grams of Sn(NO3)2 was formed. How many grams of NO were formed and how many moles of HNO3 were reacted? (HINT: the coefficient of Sn is 3).
what is the longest wavelength of radiation that possesses the necessary energy to break a nitrogen bond.
To determine the molar mass of an unknown protein, 1.00 mg was dissolved in 1.00 mL of water. At 25.0°C the osmotic pressure of this solution was found to be 1.47 × 10-3 atm.
What is the probability of populating the first excited vibrational state (n = 1) at 298 K? Does isotopic substitution affect the probability? Would the intensity of absorption peaks be affected by isotopic substitution?
A sample of nitrogen gas is contained in a pistol with a freely moving cylinder. At 0.0 C , the volume of the gas is 375 ml. To what temperature must the gas be heated to occupy a volume of 500.0ml
A 530. g piece of copper tubing is heated to 92.0°C and placed in an insulated vessel containing 49.5 g of water at 39.5°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K,
At 27.7mL sample CO2(g) was collected over water at 25.0 degrees celsius and 1.00 atm. What is the pressure in torr due to CO2(g)?
what is the pressure of H2 gas collected over water when the total pressure is .980 atm at 25 degrees celsius.
A form of the polypetide hormone angiotensin II has the amino acid composition ( ASP, ARG, ILE, MET, PHE, PRO, TYR, VAL). The following observations are made
What is the buffer component ratio, ([CH3COO-]/[CH3COOH]) of an acetate buffer
Nitric oxide reacts with chlorine to form nitrosyl chloride, NOCl. Use the following data to determine the rate equation for the reaction.
Consider the following reaction: SO2Cl2 (g) SO2 (g) + Cl2 (g). K = 2.99*10^-7 at 227 degrees celsius. If a reaction mixture initially contains 0.159 , what is the equilibrium concentration.
If the sample contains a combined total of 1.90 mol and has a total mass of 60.3g, what are the percentages of CO2 and Ne in the sample by mole?
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