ionic compound Na Cl Cr(OH)4 VI₂ NH Br Cr₂03 cation + Na 0 0 0 anion CI П 0

If 2.00 grams of Epsom salts are allowed to dehydrate in a warm oven overnight, the mass of the remaining powder is 0.98 grams. If you assume that the powder is MgSO4 only, what is the formula for this batch of Epsom salts? atomic weights: O – 16.00 amu; Mg – 24.31 amu; S – 32.07 amu

Only typed solution

Calculate the number of formula units present in 1.34 g of Sr(NO2)2.

Explaining to me in great detail how to name Sr(OH)2 and Fe(OH)3 compounds. What type of compounds are they? What are the charges on the metals? How are the nomenclature rules different for these two compounds?

The recommended daily allowance of the niacin (vitamin B3) is 16 mg per day for man. The molecular formula for niacin is C6H5NO2. Calculate the number of molecules of niacin in 16 mg.

What is the mass of 5.34 x 10^23 molecules of sodium hydrogen carbonate. So far I have Na:22.99 + H1.00 + C12.01 + O3 15.99(3) =47.97 NaHCO3 83.97g/mol

||| O ATOMS, IONS AND MOLECULES Naming ionic compounds with common polyatomic ions Fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table: cation 2+ Mg 3+ Cr 4+ Pb anion 3- PO OH so Some ionic compounds empirical formula 0 name of compound 0 0 X Do 3

Fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table:

Determine mass percent of sodium in Na2PO4 Na: 22.990 amu P: 30.974 amu O: 15.999 amu 0.36 36.5% 0.45 32.6%