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A sample of ammonia gas is completely decomposed to nitrogen andhydrogen gases over heated iron wool. If the total pressure is 603mmHg, calculate the partial pressure of N2 and H2. Enter your answers in scientific notations
Would the following procedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case.
What is the effect on the boiling point of a solution (e.g., water) produced by a soluble nonvolatile substance (e.g., sodium chloride)? What is the effect of an insoluble substance such as sand or charcoal?
Determine the pH of a solution of a .150 M NaF solution. (ka for HF=3..5*10^-4) 3)Determine the pH of .050 M H2CO solution and the % dissociation of each step
Acetylene, C2H2, will burn in the presence of oxygen. 2C2H2(g)+ 5O2(g) -> 4CO2(g)+ 2H2O(g) how many grams of water can be produced by the reaction of 2.40 mol of C2H2 with 7.4 mol of O2?
A 2.00-L flask is filled with propane gas (C3H8) at 1.00 atm and -15.0 degree C. What is the mass of the propane in the flask?
The normal freezing point of water H2O is 0.00 oC and its Kf value is 1.86 oC/m. Assuming complete dissociation of the electrolyte,
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 12.0 torr at 35C. The vapor pressure of pure ethanol at 35C is 1.00x10^2 torr.
When runners or other athletes practice at high altitudes pressure is reduced. What then will be the effect on the [O2] in their blood? Why does this produce a lightheaded feeling?
Rank them in order of size from largest to smallest. In this diagram, A and B are different palindrome sequences on a DNA strand. Only the restriction enzyme that recognizes site B is present. Explain why only two fragments would be produced. How ..
When 2.0 x 10^2 mole of nicotinic acid (a monoprotic acid is dissolved in 350 mL of water, the pH is 3.05. What is the Ka of nicotinic acid
Given that Delta H (fusion) of water is 6025 J/mol, Cp(ice) = 37.7 J/K mol, and Cp(water,liquid) = 75.3 J/K mol, calculate Delta G (in J) for the freezing of 54 moles of water at 1 atm pressure and the constant temperature T =13.1 C.
Consider the compression of the gas in the right part to be a reversible process. a) calculate the work done on the right part in this process and the final temperature in the right part
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