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When 4.6 mol O2 is heated at a constant pressure of 3.25 atm, its temperature increases from 252 K to 300. K. Given that the molar heat capacity of O2 at a constant pressure is 29.4 JK-1 mol-1, calculate q, ?H, and ?U.
If a Galvanic cell (Cu and Zn) is ran to deliver current for several hours, what chemistry would occur. That is, what specific chemistry would be observed
what would be the formula for the compound sample if a sample of a compound contains 1.36 mol of nitrogen atoms and
Calculate the work (in kJ) done on the system when 1.10 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g)
vitamin tablet contains 125 mg of vitamin C (C6H8O6). How many vitamin C molecules are contained in the tablet?
Require to apply to neutralize the acidity that concluded from nitrification and determine how much CaCO 3
0.65 of sodium hydroxide (NaOH) pellets are dissolved in water to make 2.5L of solution. What is the pH of this solution
what is the vsepr formula for the nitrogen atom as the central atom in
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following
suppose you have 10 ml of 0.10m sucrose solution. you add 90 ml of water to the solution.Do the number of sucrose change? Does the molarity change?
When a sample of 5.00-g rams of Potassium thiocyanate is dissolved in H2O in a calorimeter that has a total heat capacity =6.225 kJ•K-1, the temperature decreases by 0.200 Kelvin. compute the molar heat of solution of Potassium thiocyanate.
Predict the products of the following reactions: W(CO)5[C(C5H52)(OC2H5)] +BF3 ? (C5Me5)Rh(CO)2? Will I know that the final answer has to be: W(CO)5[C(C5H5)(OC2H5)] +BF3 ? [(CO)5W?CC6H5]+ +F-+F2BOC2H5 (C5Me5)Rh(CO)2? [(C5Me5)Rh(CO)]2 +2CO
Some people think that driving a car, cooking on an outdoor grill, and using electricity produced by coal-fired generators contribute to global warming. What is the reasoning behind their thinking?
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