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Problem- A 1.24-g sample of a hydrocarbon, when completely burned in an excess of O2(g), yields 4.04 g CO2 and 1.24 g H2O Draw a plausible structural formula for the hydrocarbon molecule. [There is more than one possible arrangement of the C and H atoms.]
Not confident which formulas I require to solve something like this
How much ammonium hydroxide is needed to react completely with 75.0g of copper (2) nitrate in a double replacement reaction.
Some wastewater has a BOD5 of 150 mg/L. The reaction rate is 0.23/d. What is the ultimate carbonaceous BOD
Qualitative analysis revealed that an unknown contained the anions. NO3-, Cl- and ClO3-. A student weighed a sample into a beaker and recorded the following data
A 250.0 gram metal bar requires 5.866kJ to change its temperature from 22.0C to 100.0C. What is the specific heat of the metal
What are the principal and angular quantum numbers for the HOMO and LUMO for each of the above atom. Please provide the number and letter designation for the atomic orbital
After doing some analysis, the probe determines that the gas pocket contains an element that has an ionization energy of I= 1350 kJ/mol and an electron affinity of EA=32.0 kJ/mol . What is the identity of this element.
Calculate the cell potential for the following reaction as written at 61 °C, given that [Cr2 ] = 0.826 M and [Ni2 ] = 0.0200 M. Cr(s) + Ni ^2+ (aq) --> Cr^2+ (aq) + Ni(s)
Consider the reaction CuSO4(s) ! CuO(s) + SO3(g) . If G? = -14.6 kJ at 950?C for this reaction, calculate G for an SO3(g) pressure of 50 bar at this temperature.
Demonstrate that L^2and Lzcommute withanyHamiltonian (for a single particle) for which the potential energy is spherically symmetric
What is the mass flow rate of methane into the heat exchanger? 162 kg/min, What rate of heat is supplied to the methane stream in order to heat it from 35.0°C to 75.0°C? 250 kW
A 16 ounce specialty coffee drink contains 216 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution. What is the percent ionization.
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6)
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