A 50.0g sample of Ba(OH)2 xH₂O(s) contains 27.2g of Ba(OH)2. Calculate the value of x for this hydrate to the nearest whole number.

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Chapter1: Chemical Foundations
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Please help me with theses 4 chemistry questions. And please show your work for each question
A 50.0g sample of Ba(OH)2 xH₂O(s) contains 27.2g of Ba(OH)2. Calculate the value of x for
this hydrate to the nearest whole number.
500 mL of a 1.52 mol/L solution of vinegar (acetic acid) is used to react with a 2.53 g
sample of sodium carbonate. What is the maximum volume of carbon dioxide gas that can
be collected by displacement, at 101.2 kPa and a temperature of 19°C, assuming we lose
15% of the gas during collection? The partial pressure of acetic acid at this temperature is
2.21 kPa.
BCE: 2CH₂COOH(aq) + Na₂CO3(s)→ CO2(g) + 2NaC₂H₂O2(aq) + H₂0 (1)
Transcribed Image Text:A 50.0g sample of Ba(OH)2 xH₂O(s) contains 27.2g of Ba(OH)2. Calculate the value of x for this hydrate to the nearest whole number. 500 mL of a 1.52 mol/L solution of vinegar (acetic acid) is used to react with a 2.53 g sample of sodium carbonate. What is the maximum volume of carbon dioxide gas that can be collected by displacement, at 101.2 kPa and a temperature of 19°C, assuming we lose 15% of the gas during collection? The partial pressure of acetic acid at this temperature is 2.21 kPa. BCE: 2CH₂COOH(aq) + Na₂CO3(s)→ CO2(g) + 2NaC₂H₂O2(aq) + H₂0 (1)
Carbon dioxide in high levels can cause death. One method of removing carbon dioxide
from the air of enclosed compartments involves this reaction:
Balance mell
NaOH(s) + CO2(g) → Na₂CO3(s) +
H₂O(1)
What mass of sodium hydroxide is required to remove all the carbon dioxide in the air over
a 24h period, if the volume of CO₂ produced is 1.25 L/min at a temperature of 22 °C and a
pressure of 101.8 kPa? Please give final answer in kg.
In an experiment, 110.0 g of iron is combined with 95.0 g of oxygen gas to
create iron (III) oxide. If you have 30.0 g of iron (III) oxide at the end, calculate
its percentage yield. Organize all your work, starting with the BCE.
Transcribed Image Text:Carbon dioxide in high levels can cause death. One method of removing carbon dioxide from the air of enclosed compartments involves this reaction: Balance mell NaOH(s) + CO2(g) → Na₂CO3(s) + H₂O(1) What mass of sodium hydroxide is required to remove all the carbon dioxide in the air over a 24h period, if the volume of CO₂ produced is 1.25 L/min at a temperature of 22 °C and a pressure of 101.8 kPa? Please give final answer in kg. In an experiment, 110.0 g of iron is combined with 95.0 g of oxygen gas to create iron (III) oxide. If you have 30.0 g of iron (III) oxide at the end, calculate its percentage yield. Organize all your work, starting with the BCE.
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