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The compound para-dichlorobenzene often used in mothballs, is composed of 49.02 % carbon, 2.743 % hydrogen, and 48.24 % chlorine by weight.
A) Deduce the empirical formula of para-dichlorobenzene.
B) If the molecular weight of para-dichlorobenzene is 147.0 g mol -1, what is its molecular formula?
The enthalpies of formation of oxalic acid in the solid and aqueous phases are -826.8 and -818.8 kJ/mol, respectively. The heat capacity of water is 4.184 J/g*K. Ignore the heat capacity of oxalic acid.
Why An adequate answer will address what the reported melting point and percent yeild suggest about the purity of the isolated trimyristin.
Given the following equation: 2 C4H10 + 13 O2 ---> 8 CO2 + 10 H2O, show what the following molar ratios should be.
A solution is prepared by mixing 75.0 mL of 5.00 M HCl and 20.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.
If 5.95 mole of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 = CO2 + H2O how many oxygen is required?
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
Consider the reaction, 2 Al(OH)3 + 3 H2SO4 ->Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts?
A student found that a maximum of 0.800g silver acetate is able to dissolve in 100.0ml of water. What is the molar solubility and Ksp for the salt?
You are given 5.00 mL of an H2SO4 solution of unknown concentration. You divide the 5.00-mL sample into five 1.00-mL samples and titrate each separately with 0.1000 M NaOH.
A compound is composed of elements C, H, and N. A 7.875-mg sample of the unknown compound was combusted, producing 21.363 mg of CO2 and 6.125 mg of H2O. What is the empirical formula for this compound? (Type your answer using the format CxHyNz for..
What is the ratio of the rate constants for this reaction when the temperature is decreased from °C to °C?
calculate the molecular weight of Isoamyl acetate with a density of 0.876. Then calculate the theoretical yield of isoamyl acetate in ml, grams and moles. Show all work and calculations.
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