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An unknown compound contains only carbon, hydrogen, and oxygen (). Combustion of 4.00 of this compound produced 5.87 of carbon dioxide and 2.40 of water.
1. How many moles of carbon, C , were in the original sample?
2.How many moles of hydrogen, H , were in the original sample?
Nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation N2(g) + 3H2(g) = 2NH3(g). Delta H(rxn)=-56 kJ.
What is the heat capacity of a bomb calorimeter if the combustion of 2.757 mmol of salicylic acid (C7H6O3(s), Hcomb = -3022 kJ/mol) increases the temperature of the calorimeter by 2.612°C
Classify each of the pure substances D through G as elements or compounds, or indicate that no such classification is possible because of insufficient information
For an ideal gas the pressure P, the volume V and the temperature T are related by the ideal gas equation of state, PV = nRT, where R is the general gas constant and n is the number of moles. Consider V as a function of T and P and show that dV is..
Limestone (CaCO3) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts with sulfur dioxide to form calcium sulfite
balance the following equationcus agno3aq ags cuno32aqs and aq in parantheses refers to the phase of the reactants
What will happen to the number of moles of SO3 in equilibrium with SO2 and O2 in the reaction 2SO3(g) 2SO2(g) + O2(g)
Sketch a diagram of a pH sensitive glass electrode, label all parts and indicate the function of each part.
A sample of a gas in a piston/cyclinder apparatus occupies 30.2 mL at 1.08 atm and 22.2°C. If the volume of the sample is increased to 67.3 mL and the temperature changes to 30.9°C, what is the new pressure, in atm, of the sample
A student traces of brown deposite during the KMnO4 (NH4)2Fe(SO4)2 titration and quickly add more H2SO4 and continued his titration?Suggest what wil happen and why.
Calculate the amount of energy released per gram of hydrogen nuclei reacted for the following reaction. The atomic masses are H (with 1 neutron) = 1.00782 amu; H (with 2 neutrons) = 2.01410 amu; an electron = 5.4858 x 10^-4 amu.
An aliquot (28.7 mL) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample
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