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Questions and Answers
In the reaction where aluminum reacts with oxygen, which species is oxidized?
In the reaction where aluminum reacts with oxygen, which species is oxidized?
If 3.95% of 521 g of PCl5 decomposes in a 10.0 L vessel at 300°C, what is the resulting pressure of PCl3?
If 3.95% of 521 g of PCl5 decomposes in a 10.0 L vessel at 300°C, what is the resulting pressure of PCl3?
In the provided bubble sheet, what is the row number immediately following the one labeled '39'?
In the provided bubble sheet, what is the row number immediately following the one labeled '39'?
If you were to select option 'B' on question number 26, which position on the bubble sheet would you fill in?
If you were to select option 'B' on question number 26, which position on the bubble sheet would you fill in?
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During the decomposition of KClO3, 100.0 mL of O2 gas is collected over water at 25°C and 755 mmHg. Given the vapor pressure of water is 23.8 mmHg, what mass of O2 is collected?
During the decomposition of KClO3, 100.0 mL of O2 gas is collected over water at 25°C and 755 mmHg. Given the vapor pressure of water is 23.8 mmHg, what mass of O2 is collected?
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Which of the curves on a molecular speed distribution graph corresponds to the lowest temperature?
Which of the curves on a molecular speed distribution graph corresponds to the lowest temperature?
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Which row on the provided bubble sheet immediately precedes the one labeled '75'?
Which row on the provided bubble sheet immediately precedes the one labeled '75'?
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A 2.00 L flask of N2O at 1.00 atm and a 3.00 L flask of N2 at 2.00 atm are connected. What is the final pressure when the gases mix?
A 2.00 L flask of N2O at 1.00 atm and a 3.00 L flask of N2 at 2.00 atm are connected. What is the final pressure when the gases mix?
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On the given bubble sheet, if you were answering question number 60 and the correct answer was the 4th choice, which position would you need to fill in?
On the given bubble sheet, if you were answering question number 60 and the correct answer was the 4th choice, which position would you need to fill in?
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Which of the following rows is in the 5th column from the left of the provided bubble sheet?
Which of the following rows is in the 5th column from the left of the provided bubble sheet?
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A gas sample at 2.90 atm and 35.0 mL is heated from 20.0°C to 50.0°C at constant pressure. What is the final volume of the gas?
A gas sample at 2.90 atm and 35.0 mL is heated from 20.0°C to 50.0°C at constant pressure. What is the final volume of the gas?
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Which of the following options best explains the van der Waals constant 'a' for a gas?
Which of the following options best explains the van der Waals constant 'a' for a gas?
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If you were completing the bubble sheet and marked option 'E' for question 47, which position on column 2 would have been filled in?
If you were completing the bubble sheet and marked option 'E' for question 47, which position on column 2 would have been filled in?
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Which row number directly precedes and follows row 80 on the provided sheet?
Which row number directly precedes and follows row 80 on the provided sheet?
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If you were on question 55 and selected the second option which position would you fill?
If you were on question 55 and selected the second option which position would you fill?
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How many rows are there in the first column of the bubble sheet?
How many rows are there in the first column of the bubble sheet?
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When balancing the given redox reaction in an acidic solution, what is the stoichiometric coefficient of $HSO_3^−$ after using the smallest possible whole numbers? $MnO_4^−(aq) + HSO_3^−(aq) \rightarrow Mn^{2+}(aq) + SO_4^{3−}(aq)$
When balancing the given redox reaction in an acidic solution, what is the stoichiometric coefficient of $HSO_3^−$ after using the smallest possible whole numbers? $MnO_4^−(aq) + HSO_3^−(aq) \rightarrow Mn^{2+}(aq) + SO_4^{3−}(aq)$
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Which question number is located in the 4th row of the second column of the bubble sheet?
Which question number is located in the 4th row of the second column of the bubble sheet?
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A 500 mg antacid tablet containing $CaCO_3$ is used to neutralize stomach acid (0.10 M HCl). Given that $CaCO_3$ has a molar mass of 100.09 g/mol and $CO_3^{2-}$ reacts with two equivalents of acid, what volume of stomach acid can be neutralized?
A 500 mg antacid tablet containing $CaCO_3$ is used to neutralize stomach acid (0.10 M HCl). Given that $CaCO_3$ has a molar mass of 100.09 g/mol and $CO_3^{2-}$ reacts with two equivalents of acid, what volume of stomach acid can be neutralized?
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What is the net ionic equation for the reaction between rubidium hydroxide ($RbOH$) and nitric acid ($HNO_3$)?
What is the net ionic equation for the reaction between rubidium hydroxide ($RbOH$) and nitric acid ($HNO_3$)?
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In which of the following compounds does manganese have the highest oxidation number?
In which of the following compounds does manganese have the highest oxidation number?
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Which of the following represents the closest concentration, in molarity, to the maximum mercury level in drinking water (2 ppb)? Assume the density of drinking water is 1 g/mL and molar mass of Hg is approximately 200 g/mol.
Which of the following represents the closest concentration, in molarity, to the maximum mercury level in drinking water (2 ppb)? Assume the density of drinking water is 1 g/mL and molar mass of Hg is approximately 200 g/mol.
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Which of the following statements is NOT correct regarding the thermite reaction: $8 Al(s) + 3 Fe_3O_4 (s) \rightarrow 9 Fe(s) + 4 Al_2O_3(s)$
Which of the following statements is NOT correct regarding the thermite reaction: $8 Al(s) + 3 Fe_3O_4 (s) \rightarrow 9 Fe(s) + 4 Al_2O_3(s)$
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What is the pressure in atmospheres exerted by 2 moles of an ideal gas in a 10 liter container at 27 degrees Celsius?
What is the pressure in atmospheres exerted by 2 moles of an ideal gas in a 10 liter container at 27 degrees Celsius?
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If 1.5 moles of gas A and 3.5 moles of gas B are in a container with a total pressure of 10 atm, what is the partial pressure of gas A?
If 1.5 moles of gas A and 3.5 moles of gas B are in a container with a total pressure of 10 atm, what is the partial pressure of gas A?
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A gas occupies 5 liters at 25˚C and 1 atm pressure. If the temperature is increased to 50˚C and the volume is halved, what is the new pressure?
A gas occupies 5 liters at 25˚C and 1 atm pressure. If the temperature is increased to 50˚C and the volume is halved, what is the new pressure?
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What is the root-mean-square velocity of oxygen gas ($O_2$) at 300 K?
What is the root-mean-square velocity of oxygen gas ($O_2$) at 300 K?
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If the rate of effusion of gas A is twice the rate of effusion of gas B, and both are at the same temperature, what is the ratio of the molar mass of B to the molar mass of A?
If the rate of effusion of gas A is twice the rate of effusion of gas B, and both are at the same temperature, what is the ratio of the molar mass of B to the molar mass of A?
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A cylinder contains $N_2$ gas at 25°C. The density of the $N_2$ is 1.2 g/L. What is the pressure of the gas?
A cylinder contains $N_2$ gas at 25°C. The density of the $N_2$ is 1.2 g/L. What is the pressure of the gas?
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A 2.0 L balloon at 25°C and 1 atm expands to 4.0 L at 50°C. Assuming the amount of gas remains constant, what is the final pressure of the gas?
A 2.0 L balloon at 25°C and 1 atm expands to 4.0 L at 50°C. Assuming the amount of gas remains constant, what is the final pressure of the gas?
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What is the equivalent of 101.3 J in L atm?
What is the equivalent of 101.3 J in L atm?
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If 2.00 moles of $NO_2$ gas are present in a 3.00 L container at 173.15 K, what is the pressure of the gas when considered as a real gas?
If 2.00 moles of $NO_2$ gas are present in a 3.00 L container at 173.15 K, what is the pressure of the gas when considered as a real gas?
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In an experiment, hydrogen sulfide gas is collected in a 1.25 L flask at 21.0°C and 758 torr. How many grams of $H_2S$ (34.08 g/mol) are obtained?
In an experiment, hydrogen sulfide gas is collected in a 1.25 L flask at 21.0°C and 758 torr. How many grams of $H_2S$ (34.08 g/mol) are obtained?
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What is the density of sulfur hexafluoride ($SF_6$, 146.1 g/mol) in a cylinder at 1.5 atm and 22°C?
What is the density of sulfur hexafluoride ($SF_6$, 146.1 g/mol) in a cylinder at 1.5 atm and 22°C?
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What is the root-mean-square speed of HF at 37.5°C?
What is the root-mean-square speed of HF at 37.5°C?
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A 4.5 L bottle of a developing solution was treated with an excess of sodium chloride, and 2.86 g of dry silver chloride was collected. What was the molar concentration of the silver ions in the developing solution?
A 4.5 L bottle of a developing solution was treated with an excess of sodium chloride, and 2.86 g of dry silver chloride was collected. What was the molar concentration of the silver ions in the developing solution?
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In the balanced redox reaction, $MnO_4^-$(aq) + $I^-$(aq) → $I_2$(aq) + $Mn^{2+}$(aq) under acidic conditions, on which side does $H_2O$(l) appear, and what is its coefficient?
In the balanced redox reaction, $MnO_4^-$(aq) + $I^-$(aq) → $I_2$(aq) + $Mn^{2+}$(aq) under acidic conditions, on which side does $H_2O$(l) appear, and what is its coefficient?
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Which expression best represents the ionization of formic acid, $HCO_2H$, in water?
Which expression best represents the ionization of formic acid, $HCO_2H$, in water?
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During the collection of a gas by water displacement, what value is NOT expected to be equal to the total pressure within the collection vessel?
During the collection of a gas by water displacement, what value is NOT expected to be equal to the total pressure within the collection vessel?
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Study Notes
Exam Instructions
- Write name, NetID, TA name, and section number on the bubble sheet.
- Indicate exam version (A, B, or C) on the bubble sheet.
- Answer questions directly on the bubble sheet.
- No cell phones, tablets, laptops, or other devices (except calculators) allowed during exam.
- If needing to leave, hand in phone and exam materials to a TA.
- Stop writing immediately when time is called and return exam to TA at front of room.
- Show UCR ID to the TA after handing in the exam.
Equations
- C1V1 = C2V2
- P = F/A
- Ptotal = PA + PB + PC
- PA = XiPtotal
- Xi = ni/ntotal
- P1V1/T1 = P2V2/T2
- PV = nRT
- P + a(n/V)² = nRT
- d = µP/RT
- RateA/RateB = √(µB/µA)
- KEavg = 1/2µvrms²
- vrms = √(3RT/µ)
Constants and Units
- 101.3 J = 1 L·atm
- M = mol solute / L solution
- R = 0.0821 L·atm/mol·K = 8.31 J/mol·K = 8.314 kg·m²/s²·mol·K
- 1 atm = 760 mmHg = 760 Torr
- 1 atm = 14.7 psi
- 1 L = 1000 cm³
- 0°C = 273.15 K
Periodic Table (Page 2)
- Contains information on elements (symbols, names, atomic weights)
- Organized by atomic number and properties.
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Description
Prepare for your upcoming chemistry exam with this quiz that covers essential equations and concepts. Test your understanding of formulas related to gas laws, pressure, and concentration. This quiz is designed to help reinforce your knowledge and boost your confidence before the exam.
