What would be the pH of a 1 M solution of Na2HPO4 ? Assume H3PO4 has a pKa1 of 2 and a pKof 7 and a pKof 13.4.

HOW CAN I PURIFY CARBONIC ACID

Which solution would have the highest boiling point? A) 0.020 M Na3PO4 B) 0.025 M NH4NO3 C) 0.075 M CaCl2 D) 0.050 M KNO3 E) 0.10 M glucose

When sodium bicarbonate is heated, sodium carbonate is produced, with the evolution of water vapor and carbon dioxide gas. 2NaHCO3(s) -> Na2CO3(s) + H2O(g) + CO2(g) What total volume of gas measured at 29 deg C and 767 torr, is produced when 1.27 g of NaHCO3(s) is completely converted...

We observe that 3 grams of a gaseous com- pound occupies 1894 mL at 46 C and 673 torr. What is the molecular weight of the com- pound? Answer in units of g/mol.

How does the reaction between the volume of NaOH and Hcl/CH3CO2H affect the enthalpy change?

If all other rules governing electron configurations remained the same, how many unpaired electrons would a magnesium atom (Z = 12) have if the magnetic quantum number ml could only take on values 0, 1, 2, ..., +l? (a) 0 (b) 1 (c) 2 (d) 4 (e) None of these

H4Sb2O7

A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon by mass. At 139 degrees Celsius and 1.00 atm, the density of this compound is 2.55 g/L. What is the molar mass?

according to the law of the conservation of mass, if the products of a reaction have a mass of 64.0 g, then the total mass of the reactants