Which of the following deviations from the experiment would most considerably cause an increase in the final calculated %yield of the Mg(s)? O Consciously inserting 15.0 mg of folded Mg ribbon instead of the prescribed 20 to 30 mg into the eudiometer. O Placing 13.0 mL instead of 10.0 mL of 6.0 M HCI into the eudiometer. O Immediately reading the volume of gas right after the reaction ceased. O Not adding enough water to fill the eudiometer to the brim, leaving a headspace after inverting the eudiometer. A student not well-familiarized with the order of the procedures in the experiment, unwarily measured and recorded the temperature of the water in the beaker at 23°C before, instead of after, doing the reaction. However, during the course of the experiment, the lab air conditioning failed, considerably heating the water. The measuredh will O indeterminate O decrease O still be the same O increase If the experiment was repeated with the same mass of Fe(s) instead of Mg(s), and all others parameters constant, the calculated ngas will O decrease O increase O still be the same O indeterminate Which of the following correctly explains why the vapor pressure of water has to be included in the calculations? O As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above. O The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor. O Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas. O The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor has to be added to Pdry ças- Which of the following deviations from the experiment could cause a decrease in the calculated mass of Mg(s)? O Incorrectly recording the barometric pressure. O Not accounting for the vapor pressure of water. O Using a eudiometer of different length. O Using a beaker with a wider diameter.
Which of the following deviations from the experiment would most considerably cause an increase in the final calculated %yield of the Mg(s)? O Consciously inserting 15.0 mg of folded Mg ribbon instead of the prescribed 20 to 30 mg into the eudiometer. O Placing 13.0 mL instead of 10.0 mL of 6.0 M HCI into the eudiometer. O Immediately reading the volume of gas right after the reaction ceased. O Not adding enough water to fill the eudiometer to the brim, leaving a headspace after inverting the eudiometer. A student not well-familiarized with the order of the procedures in the experiment, unwarily measured and recorded the temperature of the water in the beaker at 23°C before, instead of after, doing the reaction. However, during the course of the experiment, the lab air conditioning failed, considerably heating the water. The measuredh will O indeterminate O decrease O still be the same O increase If the experiment was repeated with the same mass of Fe(s) instead of Mg(s), and all others parameters constant, the calculated ngas will O decrease O increase O still be the same O indeterminate Which of the following correctly explains why the vapor pressure of water has to be included in the calculations? O As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above. O The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor. O Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas. O The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor has to be added to Pdry ças- Which of the following deviations from the experiment could cause a decrease in the calculated mass of Mg(s)? O Incorrectly recording the barometric pressure. O Not accounting for the vapor pressure of water. O Using a eudiometer of different length. O Using a beaker with a wider diameter.
Which of the following deviations from the experiment would most considerably cause an increase in the final calculated %yield of the Mg(s)? O Consciously inserting 15.0 mg of folded Mg ribbon instead of the prescribed 20 to 30 mg into the eudiometer. O Placing 13.0 mL instead of 10.0 mL of 6.0 M HCI into the eudiometer. O Immediately reading the volume of gas right after the reaction ceased. O Not adding enough water to fill the eudiometer to the brim, leaving a headspace after inverting the eudiometer. A student not well-familiarized with the order of the procedures in the experiment, unwarily measured and recorded the temperature of the water in the beaker at 23°C before, instead of after, doing the reaction. However, during the course of the experiment, the lab air conditioning failed, considerably heating the water. The measuredh will O indeterminate O decrease O still be the same O increase If the experiment was repeated with the same mass of Fe(s) instead of Mg(s), and all others parameters constant, the calculated ngas will O decrease O increase O still be the same O indeterminate Which of the following correctly explains why the vapor pressure of water has to be included in the calculations? O As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above. O The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor. O Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas. O The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor has to be added to Pdry ças- Which of the following deviations from the experiment could cause a decrease in the calculated mass of Mg(s)? O Incorrectly recording the barometric pressure. O Not accounting for the vapor pressure of water. O Using a eudiometer of different length. O Using a beaker with a wider diameter.
Hi! I need answers on the last two multiple-choices question. The overview of the experiment can be seen in the picture. This is experiment is about testing the Ideal Gas Law.
Transcribed Image Text:Which of the following deviations from the experiment would most considerably cause an increase in the final calculated %yield of the Mg(s)?
Consciously inserting 15.0 mg of folded Mg ribbon instead of the prescribed 20 to 30 mg into the eudiometer.
O Placing 13.0 mL instead of 10.0 mL of 6.0 M HCIl into the eudiometer.
O Immediately reading the volume of gas right after the reaction ceased.
O Not adding enough water to fill the eudiometer to the brim, leaving a headspace after inverting the eudiometer.
A student not well-familiarized with the order of the procedures in the experiment, unwarily measured and recorded the temperature of the water
in the beaker at 23°C before, instead of after, doing the reaction. However, during the course of the experiment, the lab air conditioning failed,
considerably heating the water. The measured h will.
O indeterminate
O decrease
O still be the same
increase
If the experiment was repeated with the same mass of Fe(s) instead of Mg(s), and all others parameters constant, the calculated
ngas
will
O decrease
increase
O sill be the same
O indeterminate
Which of the following correctly explains why the vapor pressure of water has to be included in the calculations?
O As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively
decreasing the measured pressure above.
O The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water
vapor.
O Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas.
O The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor
has to be added to Pdry
gas.
Which of the following deviations from the experiment could cause a decrease in the calculated mass of Mg(s)?
O Incorrectly recording the barometric pressure.
O Not accounting for the vapor pressure of water.
O Using a eudiometer of different length.
O Using a beaker with a wider diameter.
Transcribed Image Text:Recap of the Experiment
Record Volume of the
Cover the
mouth of the
Place 10.0
enclosed gas, the
height difference
between the water
Insert folded
mL of 6.0 M
Mg ribbon
(аpprox.
0.02-0.03 g)
Add water
HCI into a
eudiometer
eudiometer with
to fill
finger and invert
into a glass that
is 2/3 filled wl
eudiometer
levels inside and
partially filled
w/ distilled
to the brim.
into the
outside the eudiometer,
and the temperature of
eudiometer.
water.
water.
the water outside.
Definition Definition Any of various laws that describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. At a constant temperature, the pressure of a particular amount of gas is inversely proportional with its volume (Boyle's Law) In a closed system with constant pressure, the volume of an ideal gas is in direct relation with its temperature (Charles's Law) At a constant volume, the pressure of a gas is in direct relation to its temperature (Gay-Lussac's Law) If the volume of all gases are equal and under the a similar temperature and pressure, then they contain an equal number of molecules (Avogadro's Law) The state of a particular amount of gas can be determined by its pressure, volume and temperature (Ideal Gas law)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
