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?
Calculate the amount (in moles) of (a) Cu2+ ions in 3.00 g of CuBr2
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
How many moles of NaCl, if mixed with excess Pb2+ ions in solution, would be needed to form 11.7 g of PbCl2?
33) How many moles of sodium carbonate are in a sample of pure sodium carbonate that contains 14.33 grams of sodium ions?