Answer: You need approximately 70 g of potassium carbonate.
Explanation:
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Two atoms of nitrogen and four atoms of oxygen because the compound has two molucules of it which is multiplied by its sub to bring the result
Moles of the sucrose in the reaction is given by mass of sucrose divided by relative formula mass of sucrose,(mass/R.F.M)
R.F.M of sucrose is therefore (12 x12)+(1 x22) +(16 x11) =343
number of moles=10g/342=0.029moles (answer A)
There are several ways to visually represent compounds. For this particular organic compound, we can use the skeletal formula and the expanded formula. The skeletal makes use of lines to show which atoms are bonded to each other. The expanded formula shows the species of the atoms and their bonding with other atoms. I have attached the two representations.