04 6 × 10 to the power 20 molecules are removed from 880 milligram of

1.	04 6 × 10 to the power 20 molecules are removed from 880 milligram of carbon dioxide how many moles of carbon dioxide are left
Answer» Hi there, GIVEN ◇ MWT is molar mass of CO2 which equal 44 gm / mol ◇ Nu is number of molecules of CO2 which are 6×10^20 ◇ NA is avogadros number which equal 6×10^23 ◇ Number of moles = number of molecules ÷ avogadros 6×10^20 ÷ 6×10^23 = 0.001 mol ◇ Ms Sample mass REMOVED is equal molar mass × number of mols 44 × 0.001 = 0.044 gm = 44 mg ◇ Sample mass remains are equal 880 mg - 44 mg = 836 mg = 0.836 gm ◇n number of mols is equal sample mass ÷ molar mass 0.836 ÷ 44 = 0.019 mol ♡ Hope the answer is helpful ♡ Plz mark it as brailiest

04 6 × 10 to the power 20 molecules are removed from 880 milligram of carbon dioxide how many moles of carbon dioxide are left

Answer»

Hi there,

◇ MWT is molar mass of CO2 which equal 44 gm / mol

◇ Nu is number of molecules of CO2 which are 6×10^20

◇ NA is avogadros number which equal 6×10^23

◇ Number of moles =

number of molecules ÷ avogadros

6×10^20 ÷ 6×10^23 = 0.001 mol

◇ Ms Sample mass REMOVED is equal

molar mass × number of mols

44 × 0.001 = 0.044 gm = 44 mg

◇ Sample mass remains are equal

880 mg - 44 mg = 836 mg

= 0.836 gm

◇n number of mols is equal sample mass ÷ molar mass

0.836 ÷ 44 = 0.019 mol

♡ Hope the answer is helpful

♡ Plz mark it as brailiest