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Calculate DE, and determine whether the process is endothermic or exothermic for the following cases: q = -142 kJ and w = -530 kJ.
At 1 atm, how much energy is required to heat 63.0 g of H2O(s) at -24.0 °C to H2O(g) at 143.0 °C
Draw the structures of [Co(NH3)6]Cl3 and [Co(NH3)5Cl]Cl2. Explain the difference between the chlorides in [Co(NH3)6]Cl3 and [Co(NH3)5Cl]Cl2.
how many square meters of floor space are there in a room which has 225.0 square yard of floor space 1 m=39.37 in, 1 yard =36 in.
An unknown compound with a molecular formula of C8H18 reacts with chlorine in the presence of light and heat. From the reaction, only one compound with the formula C8H17Cl can be isolated. What is the structure of the original unknown compound?
How many moles of nitrate ions are present in a sample that contains 4.82 moles of chromium(III) nitrate, Cr(NO3)3
List all compounds that are present when reaction is complete. C) Determine the theoretical yield of H3PO4 based on the starting materials and D) Determine the mass, in grams, of each compound present when the reaction is complete
What is the pH of the solution when the titration is half way to the end point?
Calculate the systematic treatment of equilibrium. Remember C2O4^2- is a weak base so you must consider other equilibria. (Ksp(ZnC2O4)=7.5X10^-9, Kb1=1.8X10^-10, Kb2=1.8X10^-13). Solve using systematic treatment of equilibrium.
At its boiling point of 100C, 724 kJ of heat is required to vaporize 321 g of water. What is the molar enthalpy of vaporization of water
Construct a reaction table for the process, and use it to calculate Kc at this temperature.
A 300.0cm^3 sample of the solution is then treated with excess HNO3 and boiled to remove all the dissolved gas. A total of 0.955 L of dry CO2 is collected at 298 K and 0.972 atm.
What IR stretches (and ranges) will occur in? What IR stretches (and ranges) will occur in an aldehyde, but not an alcohol or ketone and IR stretches (and ranges)
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