Answer:
2457.58×10²³ atoms of oxygen
Explanation:
Given data:
Number of moles of Na₂Cr₂O₇ = 58.3 mol
Number of atoms of oxygen = ?
Solution:
First of all we will calculate the number of moles of oxygen in 58.3 moles of Na₂Cr₂O₇.
1 mole of Na₂Cr₂O₇ contain 7 moles of oxygen.
58.3 mol × 7 = 408.1 mol
Number of atoms of oxygen:
1 mole contain 6.022×10²³ atoms
408.1 mol × 6.022×10²³ atoms / 1 mol
2457.58×10²³ atoms
Answer:
Mass = 547.2 g
Explanation:
Given data;
Mass of F₂ = ?
Moles of F₂ = 14.4 mol
Solution:
Formula
Number of moles = mass/ molar mass
Mass = number of moles × molar mass
Molar mass of F₂ = 38 g/mol
Mass = 14.4 mol × 38 g/mol
Mass = 547.2 g
Functional groups<span> are set of commonly found </span>groups<span> of atoms covalently bonded to carbon in </span>organic molecules<span>.The unique </span>functional groups<span> present on a bio molecule determine </span>reactivity <span>solubility and other physical </span>properties<span> that lead to its biological role in living organisms.</span>