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Calculate pCu at the equivalence point in the titration of 20.0 mL of 0.0161 M CuSO4 with 0.0100 M EDTA at pH 8.00.
When 50.0 g of iron(III) oxide reacts with carbon monoxide, 32.8 g of iron is produced. What is the percent yield of the reaction? Fe2O3(s)+3CO(g)-->2Fe(s)+3CO2(g)
What is a fractional distillation how is it different than a simple distillation in principle and in the apparatus used
The heat of formation of KCl(s) is -436.7 kJ/mol and the heat of formation of KCl(aq, 1 m) is -419.5 kJ/mol. Determine the heat of solution of KCl.
Which of the following is an experimental fact that valence bond theory cannot explain, but molecular orbital theory can? A) the paramagnetism observed for O2
how many grams of HNO3 must be dissolved to make 25L of a solution that has a pH of 1.5
What weight of glucose in grammes is required to make 675 ml of a 750 mM solution. Glucose Mr = 180.16
The critical constants of ethane are Pc= 48.20 atm, Vc= 148 cm3mol-1, and Tc= 305.4 K. Calculate the van der Waals parameters of the gas and estimate the radius of the molecules.
For example if your compound is water and you have the information the boiling point, Tb=(99.98 C), the enthalpy of vaporization= (40.65 kJ/mol) and the molar mass= 18.02g/mol.
discribe how to prepare this solutions show all work and calcualtion? a) 50mL of asolution containing 0.15M malonic acid [CH2(COOH)2 plus 0.02 manganese sulfate [ MnSO4] b) 100 mL of 0.08M sulfuric acid
why is it not necessary to precisely measure the amount of water added to the sodium chloride in the procedure
calculate the seperation in Energy between the ground state and the first excited state in which one electron occupies the state with n=7.
Balnace the following half reactions in an acidic solution a) MnO4 -(aq)---- MnO2(s) b) IO2- (aq)----Io4-(aq) based on (a) and (b) above, write balanced redox eqautions of (A) in an acidic solution MnO4-(aq) + IO3_(aq)----MnO2(s) + IO4- (aq) (A)
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