g. Since the concentration of the H₂O2 solution is 3% by mass, calculate the mass of H₂O2 in the mass determined from the previous part of the 5.00 mL of the solution.

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Please help with question g
5 Online
f.
g.
h.
i.
Using the density of H₂O2, calculate the mass of 5.00 mL of the H₂O2 solution.
mass of ₂02Vxd
j.
me of d
Since the concentration of the H₂O2 solution is 3% by mass, calculate the mass
of H₂O2 in the mass determined from the previous part of the 5.00 mL of the
solution.
k.
=SML x 1.101 g/m2
= 5.505g
Using the molar mass of H₂O2, calculate the number of moles of H₂O2
reacting.
#of moles
noves
CLIC
SPICY
mass
of H₂02 molar mass
=0.1659
34.0g/mol
= 0.00485mol
Using stoichiometry and the balanced chemical equation for the
decomposition of H2O2, calculate the number of moles of collected O2.
Determine how many grams this is equivalent to.
2 H₂022 H₂0 +0₂
H₂02:0₂ 2:1
0.00485 mole of H₂02 = 7 mole of 02
0.00485 mol 102 x 1 mol 02 -0.002425 moloz
2 mol H₂02
molar mass 0₂ 32.0 g/mol
Determine the gas constant, R.
Calculate the % error in R for this determination.
mass of 02:0.002425 mol x32.0 g/mol
= 0.07769
mass of th02-0.1659=2.14 ~ 2
0.07769
equivalent to 2
mass of 02
Briefly explain why it is essential that none of the yeast comes into contact
with the H₂O2 solution before the stopper is firmly in place.
Transcribed Image Text:5 Online f. g. h. i. Using the density of H₂O2, calculate the mass of 5.00 mL of the H₂O2 solution. mass of ₂02Vxd j. me of d Since the concentration of the H₂O2 solution is 3% by mass, calculate the mass of H₂O2 in the mass determined from the previous part of the 5.00 mL of the solution. k. =SML x 1.101 g/m2 = 5.505g Using the molar mass of H₂O2, calculate the number of moles of H₂O2 reacting. #of moles noves CLIC SPICY mass of H₂02 molar mass =0.1659 34.0g/mol = 0.00485mol Using stoichiometry and the balanced chemical equation for the decomposition of H2O2, calculate the number of moles of collected O2. Determine how many grams this is equivalent to. 2 H₂022 H₂0 +0₂ H₂02:0₂ 2:1 0.00485 mole of H₂02 = 7 mole of 02 0.00485 mol 102 x 1 mol 02 -0.002425 moloz 2 mol H₂02 molar mass 0₂ 32.0 g/mol Determine the gas constant, R. Calculate the % error in R for this determination. mass of 02:0.002425 mol x32.0 g/mol = 0.07769 mass of th02-0.1659=2.14 ~ 2 0.07769 equivalent to 2 mass of 02 Briefly explain why it is essential that none of the yeast comes into contact with the H₂O2 solution before the stopper is firmly in place.
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