Explanation:
Given;
Number of moles of the elements = 3.8moles
Molar mass of Gold = 196.966g/mol
Molar mass of Magnesium = 24.3g/mol
Molar mass of Tin = 118.710g/mol
Molar mass of Bromine = 79.904g/mol
Mass = number of moles x molar mass
Mass of Gold = 3.8 x 196.966 = 748.5g
Mass of Magnesium = 3.8 x 24.3 = 92.3g
Mass of Tin = 3.8 x 118.710 = 451.1g
Mass of Bromine = 3.8 x 79.904 = 303.6g
Reaction is NaHCO3 + HCL = H2CO3 + NaCl
the ratios are 1:1
the 8 moles of HCl are in excess
so if you use 4 moles of NaHCO3 then you will obtain 4 moles of carbonic acid
hope that helps
Two subatomic particles that are located in the nucleus of an atom are Protons and Neutrons.
Answer:
2C4H10 + 13O2 ----> 4CO2 + 10H2O
The coefficient of oxygen in the balanced equation is 13
The basic unit of mass in the metric system is grams
