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If the heat of combustion for a specific compound is -1160.0 kJ/mol and its molar mass is 26.45 g/mol, how many grams of this compound must you burn to release 927.00 kJ of heat?
A 10.0 g piece of Al that is heated to 300.0 °C, is dropped into 250 mL of H2O at 25.0 °C (density of H2O = 1.00 g/mL). Compute the final temperature of the water. Specific heat of Al = 0.902 J/g°C as well as specific heat of H2O = 4.184 J/g°C.
Some AgCl(s) has been placed in a beaker of water. After some time, the solubility of Ag+ and Cl- was measured to be 2.5 x 10-5 M. Determine whether the system has reached equilibrium.
The density of titanium metal is 4.51 g/cm^3 at 25 degrees C. What mass of titanium displaces 64.0 mL of water at 25 degrees C?
dinitrogen pentaoxide has 8.24 x10^20 molcules, how many gram of dinitrogen pentaoxide prsent
Calculate the molarity if 14.5 g of NaOH was dissolved in enough water to give 360 mL of solution.
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of Hydrogen gas are formed when 48.7g of sodium are added to water?
A sample of helium gas occupies a volume of 24.9 mL when meassured at 20.9 degree C and 527 torr. What is the volume of the gas in mL if the temperature is increased to 99.8 degree C and the pressure remains constant
Find the number of faradays passed through the circuit. What mass of Ag is deposited at the cathode in the second cell. What mass of Fe(NO3)3 might be recovered from the third cell solution
When ethane (C2H6) reacts with chlorine (Cl2) the main product is C2H5Cl; but other products containing Cl (chlorine), such as C2H4Cl2, are also obtained in small quantities. The formation of these other products reduces the yield of C2H5Cl. In a ..
A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of = 0.500 (where a femtogram,fg , is 10^-15 g) and is swimming at a velocity of v = 9.00 um/s, with an uncertainty in the velocity of 8.00 %
Which of the available reagent(s), if any, will oxidize Fe(s) while leaving Cu(s) unreacted? If none of the available reagents can be used for this purpose, then identify another reagent from the table that could be used. For each reagent you've i..
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