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Explain a sample of solid ammonium chloride was placed in an evacuated container and heated thus that it decomposed to ammonia gas as well as hydrogen chloride gas. After heating the total pressure in the container was 4.4atm. Compute the Kp at this temperature for the decomposition reaction NH4CL(s) <--> NH3(g) + HCl(g)
Utilizing the ICE table I have it as I 0 0
C x x
E x x
Find molarity, molality, percentage composition, boiling and freezing point of a solution - What are the boiling and freezing points of the solution?
Protein Quantification why should a new standard curve be prepared each time a protein sample must be analyzed for its concentration?
The drying oven, although thought to be set at 125°C, had an inside temperature of 84°C. How will this error affect the reported percent by mass of the limiting reactant in the salt mixture. too high, too low, or unaffected
The vapor pressure of water at 45.0 degrees celcius is 71.93 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature (assume 100% dissociation)
The reaction (CH3)3 CBR+ OH------)(CH3)3 COH+Br in a certain solvent is first order with respect to (CH3)3 CBr and zero order with respect to OH. In several experiments, the rate constant k was determined at different temperatures. Determine the a..
7.04 g of CuNO3 is dissolved in water to make a 0.300 M solution. What is the volume of the solution.
Table salt, NaCl, and sugar, C12H22O11, are accidentally mixed.A 5.50-g sample is burned , and 3.10 g of CO2 is produced. What is the mass percentage of the table salt in the mixture
the mass spectrum of a hypothetical element shows that 86.19 of the atoms have a mass of 27.977 u 0.825 have a mass of
Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for the following.
Calculate the volume of O2 at STP, required for the complete combustion of 175 g octane (C8H18) to CO2 and H2O?
Cyclopropane (C3H6) reacts to form propene (C3H6) in the gas phase. The reaction is first order in cylclopropane and has a rate constant of 5.87*10^-4/s at 485 C.
Sodium chloride has a solubility of 35.7g/100mL water. If you have 350mL of water and you add 115g of sodium chloride to it and mix well.
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