2 calculate the molar mass of barium sulfite 217g mol 3 in the balance
2. Calculate the molar mass of barium sulfite. 217g/mol
3. In the balanced equation for the reaction:
XP406(s) + yH₂O(1)→ ZH3PO3(aq)
equals 2, the coefficient z equals:
4. Consider the following reaction:
CH₂(g) +4Cl₂(g) →ca, (g) + 4HCl(g)
What mass of CC14 is formed by the reaction of 40g of methane with an excess of chlorine? 384.5
5. Suppose the reaction Ca3(PO4)2 + 3H₂SO4 → 3CaSO4 + 2H³PO4 is carried out starting with 153g of
Ca3(PO4)2 and 77 g of H₂SO4.
a. Identify the limiting and excess reactants.
b. How much excess reactant is left over? 71.69 g
c. How much phosphoric acid will be produced? 51.2 g
6. How many moles of Li³N can be formed from
6 Li(s) + N₂(g) → 2 Li³N(s)
80 moles of Li? Assume an excess of nitrogen.
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