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Tires in a bike have been filled to a pressure of 53.0 psi at 19.0 deg C. after riding around for a while, the volume of the tire increased by 2% & the temp was now 32 deg C. whats the new pressure in psi?a. 67.5b. 56.5c. 54.3d. 54.0e. 55.4
Calculate the molar mass of the unknown gas. Remember that the faster the rate of effusion, the shorter the time required for effusion; that is, rate and time are inversely proportional.
a 4.50-g sample of CaO is reacted with 4.34 g of H2O. how many grams of water remains after completion of reaction?
Phosphorus trichloride and phosphorus pentachloride equilibrate in the presence of chlorine: PCl3 (g) + Cl2 (g) ? PCl5 (g). At equilibrium, the pressures of the individual species are as follows: 0.202 atm for PCl3 (g), 3.45 atm for PCl5 (g) and 0..
What is the approximate pH of a solution of the salt NH4(O2CCH3) (ammonium acetate)? No calculations -- only reasoning needed. pKa/pKb values in your notes
When the equation below is properly balanced, the correct sequence of coefficients is? NaCl(s) + SO2(g) + H2O(l) + O2(g) NaSO4(s) + HCl(g)
Say, for example, that you had prepared a Buffer, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100 ml of 1.O M acetic acid. What would be the initial pH of Buffer C.
Draw a Lewis structure for each of the following compounds. Specify the hybrid orbitals that overlap to form each bond. Then label each bond as a pi or sigma bond
The delta G inital for the dissociation of an aqueous solution of a weak acid at 25 degrees celcius is 14.8 kJ. What is the calue of Ka for the acid?
What proportion of benzoic of benzoic should be used with an equimolar mixture of adipic acid and hexamethylene diamine to produce a polymer of 10,000 molecular weigh at 99.5% conversion?
In a voltaic cell, the anode is negative relative to the cathode. Oxidation occurs at the anode of either type of cell (voltaic and electrolytic).
What is the power output of the turbine? H1= 1322.6 Btu/lbm v1=3.058 (ft)^3/lbm H2= 1148.6 Btu/lbm v2=78.14 (ft)^3/lbm
What is the change in the internal energy of the system as the system travels down the isotherm from state A to state C? Change in internal energy down the isotherm = 0.000
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