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A sample of propane, C3H8, contains 12.5 moles of carbon atoms. How many total moles of atoms does the sample contain?
Express the total number of moles of carbon and hydrogen numerically.
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 6.65g of C6H6 is added to 5.69 kg of water at 21C, what is the final temperature of the water.
a 2.00 l sample of air at -50 degreees c has a pressure of 700 torr. what will be the new pressure in torr if the temp
Question- A student is presented with a 0.110 M solution of an unknown weak acid. The student measures the pH of that solution and determines a value of 3.25 for the unknown solution. What then, is the Ka of this weak acid. What is the pKa
starting from alcohol that contains four or less carbon atoms and from benzene and toluene,
Use the Nernst Equation to calculate Ecell at 25 C for electrolysis of aqueous sodium chloride if the concentration of chlorine in the brine solution is 4.5 M and the partial pressure of Cl2 is 0.001 atmospheres.
Concentrated aqueous HClO4 has a concentration of 14.8 M. Calculate the concentrations of all ions present in a solution prepared by pipetting 3.12 mL of concentrated HClO4 into a 1000. mL volumetric flask and filling to the mark.
Find the magnitude and direction of the velocity of the second spacecraft as measured by the pilot of the first spacecraft
Problem- For the reaction shown below, which change in conditions made to the system at equilibrium will result in a net reaction to the right to form more product?
Calculate the value of Keq for the following equilibrium when [H2]=0.228M, [I2]=0.228M and [HI]=1.544 H2 + I2 -> 2HI
Calculate the standard enthalpy of formation of gaseous carbon dioxide (CO2) using the following thermochemical information: 2 C(s) + H2(g) C2H2(g) H = +226.8 kJ 2 C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(l) H = -2599.3 kJ 2 H2O(l) 2 H2(g) + O2(g) H = +..
the equilibrium constant, Kc for the reaction: Ni(s) + 4CO(g)>-- Ni(s) + 4CO(g)
Enter the magnitude. What is the magnitude of the force exerted on the ship by the artillery shell?
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