. Sodium metal and white phosphorus react to form a compound that is so dangerous it is not allowed to be transported on passenger aircraft. 12 Na(s) + P4(s) --> 4 Na3P(s) How many moles of sodium metal are needed to form 2.8 mol of sodium phosphide?
(Record only your final answer rounded to the correct number of significant digits.)
1. Sodium metal and white phosphorus react to form a compound that is so dangerous it is not allowed to be transported on passenger aircraft.
12 Na(s) + P4(s) --> 4 Na3P(s)
How many moles of sodium metal are needed to form 2.8 mol of sodium phosphide?
2. A thermite reaction was used historically to weld. In the reaction, solid aluminium and solid iron(III) oxide are ignited by high temperatures to produce aluminium oxide and iron.
2 Al(s) + Fe2O3(s) → 2 Fe(s) + Al2O3(s)
If 58.3 g of aluminium is used in the reaction, how many moles of aluminium oxide are produced?
3. Sodium metal is a soft silvery metal. Sodium metal reacts vigorously with water to produce sodium hydroxide and hydrogen gas.
What mass of hydrogen can be produced from 9.72 g of sodium?
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