1. Calculate the moles of sodium oxide needed to have 40.1 g of sodium ions.
1. Calculate the moles of sodium oxide needed to have 40.1 g of sodium ions.
A) How many moles of O2- ions are there in 0.950 moles of aluminum oxide, Al2O3? B) What is the mass in grams of these O2- ions?
un 15 Complee! If 40.1 g of sulfurous acid reacts with 23.2 g of sodium hydroxide, how many grams of H₂O can be produced? what is the mass of each reactant left after the reaction is over?
un 15 Complee! If 40.1 g of sulfurous acid reacts with 23.2 g of sodium hydroxide, how many grams of H₂O can be produced? what is the mass of each reactant left after the reaction is over?
Calculate the number of moles and the mass of negative ions present in 15.67 g of magnesium nitrate, Mg(NO3)2.
1. How many Na^+ ions contain 5.43 g of Na3PO4? 2. Calculate the number of moles of the species indicated in 333 mg of Na2B4O2. 10H2O.
I have a 0.125 M sodium oxide solution a) 15.25 mL of this is diluted to 100.00 mL total volume. What is the concentration of the new solution? b) I now want to make 75.00 mL of a 20.00 mM solution. What volume of the 0.125 M solution must be diluted to 75.00 mL to make this? c) What is the concentration of sodium ions in the 0.125 M sodium oxide solution?
9. Determine the net charge of each of the following ions: (a) sodium (b) oxide (c) hydrogen (d) chloride (e) magnesium (f) sulfide
33) How many moles of sodium carbonate are in a sample of pure sodium carbonate that contains 14.33 grams of sodium ions?
How many moles of NaCl, if mixed with excess Pb2+ ions in solution, would be needed to form 11.7 g of PbCl2?
Chem 143 - Lab 46) CALCULATE THE THEORETICAL YIELD Grams of sodium carbonate used Moles of sodium carbonate used Grams of calcium chloride used Moles of calcium chloride used Moles of precipitate expected Theoretical yield of precipitate in grams Actual yield of precipitate in grams Percent yield 5.6 Show detailed work for percent yield. Page 4 of 4 Chem 143 - Lab Pre-lab Exercise Show the details of each calculation to get full credit 1. Magnesium oxide, a white powdery...