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A mixture of Na2CO3 and MgCO3 of mass 8.58 g is reacted with an excess of hydrochloric acid. The CO2 gas generated occupies a volume of 1.67 L at 1.24 atm and 26°C. From these data, calculate the percent composition by mass of Na2CO3 in the mixture.
A pure fluid is described by the following expression for Gibbs free energy: G = gamma(T) + RTlnP, where gamma(T) is a substance specific function of temperature.
alculate the volume of .7000 M NaOH required to convert all of the phosphoric acid to sodium dihydrogen phosphate. What is the concentration of the sodium dihydrogen phosphate in the final solution
What is the pH when enough 0.100 base is added to neutralize 8.00 mL of 0.100 M acid? Note: Make simplifying assumptions
what is the molar mass of the solute? The boiling point elevation constant for water is .512 C/m.
the approximate equivalence point of a ph meter titration before before carrying out the ph titration
Important information about Organic Chemistry, The most reasonable formula for a compound demonstrating M+ =101 with a minor M+1 peak is
An 8mL sample of an unknown concentration of NH3 is titrated with HCl. It is found that 12mL of 0.10M HCl is required to reach the equivalence point. What was the concentration of the NH3 in the initial 8mL sample?
What is the pressure in a 10.0L cylinder filled with .448 mol of nitrogen gas at a temperature of 315k
consider the following mixtures. in each case either calculate the pH if the resulting solution is a buffer solution or state why the solution does
Why is the resonance energy of pyrrole (21 Kcal/mol) greater that the resonance energy of furan (16 kcal/mol)
Data: 2Ba(s) + O2(g) => 2BaO(s) ?H = -1107.0 kJ Ba(s) + CO2(g) + 1/2O2(g) => BaCO3(s) ?H = -822.5 kJ Given the data above, calculate ?H for the reaction below
The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressure of oxygen: 0.20atm of oxygen at one point and 0.0010atm of ..
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