id int64 2 200 | question stringlengths 160 520 | answer stringclasses 4
values |
|---|---|---|
117 | Create an initial solution of pure water at pH 7.0 Add in steps .001, 0.005, 0.01, 0.05 , and 0.1 moles of sulfuric acid.
What is the ionic strength of the final solution?
A. 1.397e-01
B. 1.394e-01
C. 1.399e-01
D. 1.391e-01 | D |
120 | Create an initial solution of pure water at pH 7.0 Add in steps .001, 0.005, 0.01, 0.05 , and 0.1 moles of sulfuric acid.
What is the activity of H+ in the final solution?
A. 9.706e-02
B. 9.704e-02
C. 9.700e-02
D. 9.703e-02 | A |
121 | Create an initial solution of pure water at pH 7.0 Add in steps .001, 0.005, 0.01, 0.05 , and 0.1 moles of sulfuric acid.
What is the pH in solution of reaction step 1?
A. 2.750
B. 2.751
C. 2.748
D. 2.745 | B |
122 | Create an initial solution of pure water at pH 7.0 Add in steps .001, 0.005, 0.01, 0.05 , and 0.1 moles of sulfuric acid.
What is the viscosity of the solution at reaction step 1?
A. 0.89067
B. 0.89064
C. 0.89058
D. 0.89059 | B |
123 | Create an initial solution of pure water at pH 7.0 Add in steps .001, 0.005, 0.01, 0.05 , and 0.1 moles of sulfuric acid.
What is the pH of the solution at reaction step 2?
A. 2.129
B. 2.122
C. 2.127
D. 2.124 | D |
124 | Create an initial solution of pure water at pH 7.0 Add in steps .001, 0.005, 0.01, 0.05 , and 0.1 moles of sulfuric acid.
What is the activity of H+ at reaction step 2?
A. 7.513e-03
B. 7.514e-03
C. 7.512e-03
D. 7.516e-03 | A |
126 | Create an initial solution of pure water at pH 7.0 and place it at equilibrium with 10 moles of gypsum.
What is the pH of the solution?
A. 7.066
B. 7.065
C. 7.062
D. 7.068 | A |
127 | Create an initial solution of pure water at pH 7.0 and place it at equilibrium with 10 moles of gypsum.
What is the ionic strength of the solution?
A. 4.1741e-02
B. 4.176e-02
C. 4.174e-02
D. 4.172e-02 | C |
129 | Create an initial solution of pure water at pH 7.0 and place it at equilibrium with 10 moles of gypsum.
What is the saturation index of anhydrite?
A. -0.30
B. -0.35
C. -0.28
D. -0.34 | A |
131 | Create an initial solution of pure water at pH 7.0 and place it at equilibrium with 10 moles of gypsum.
What is the activity of OH-?
A. 1.179e-07
B. 1.176e-07
C. 1.178e-07
D. 1.172e-07 | C |
132 | Create an initial solution of pure water at pH 7.0 and place it at equilibrium with 10 moles of gypsum.
What is the molality of CaHSO4+?
A. 3.162e-09
B. 3.161e-09
C. 3.168e-09
D. 3.160e-09 | A |
134 | Create an initial solution of pure water at pH 7.0 and place it at equilibrium with 10 moles of gypsum.
What is the final number of moles of gypsum in the assemblage?
A. 9.985e+00
B. 9.986e+00
C. 9.988e+00
D. 9.980e+00 | A |
135 | Create an initial solution of pure water at pH 7.0 and 25 degrees Celsius. Place it in equilibrium with 10 moles of CO2 at -3.4 log PCO2.
What is the pH?
A. 5.610
B. 5.619
C. 5.617
D. 5.613 | A |
137 | Create an initial solution of pure water at pH 7.0 and 25 degrees Celsius. Place it in equilibrium with 10 moles of CO2 at -3.4 log PCO2.
What is the ionic strength?
A. 2.462e-06
B. 2.466e-06
C. 2.461e-06
D. 2.457e-06 | C |
139 | Create an initial solution of pure water at pH 7.0 and 25 degrees Celsius. Place it in equilibrium with 10 moles of CO2 at -3.4 log PCO2.
What is the delta of CO2 (g)?
A. -1.600e-05
B. -1.594e-05
C. -1.500e-05
D. -1.606e-05 | A |
141 | Create an initial solution of pure water at pH 7.0 and 25 degrees Celsius. Place it in equilibrium with 10 moles of CO2 at -3.4 log PCO2.
What is the activity of H+?
A. 2.459e-06
B. 2.456e-06
C. 2.452e-06
D. 2.457e-06 | B |
142 | Create an initial solution of pure water at pH 7.0 and 25 degrees Celsius. Place it in equilibrium with 10 moles of CO2 at -3.4 log PCO2.
What is the molality of OH-?
A. 4.129e-09
B. 4.136e-09
C. 4.131e-09
D. 4.122e-09 | A |
143 | Create an initial solution of pure water at pH 7.0 and 25 degrees Celsius. Place it in equilibrium with 10 moles of CO2 at -3.4 log PCO2.
What is the log IAP of CO2 (g)?
A. -4.80
B. -4.84
C. -4.87
D. -4.86 | C |
144 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the pe of solution 10 at transport 10?
A. -1.452
B. -1.453
C. -1.451
... | A |
146 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
How many moles of CaX2 are on exchange site 1 at transport step 5?
A. 4.284e-04... | A |
147 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the specific conductance of solution 1 at transport step 5?
A. 124
B. ... | D |
148 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the concentration of Na of solution 1 at transport step 5?
A. 9.875e-04... | B |
149 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the molality of NaX at transport step 4, exchange 1?
A. 1.301e-04
B. 1... | B |
150 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the equivalent fraction of CaX2 at exchange 8 at transport step 4?
A. 1... | A |
152 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the equivalent fraction of CaX2 at exchange 1 at transport step 6?
A. 8... | B |
154 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the viscosity of solution 1 at transport step 6?
A. 0.89023
B. 0.89021... | C |
155 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the molality of Ca+2 in solution 1 at transport step 6?
A. 5.506e-06
B... | A |
156 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
How many moles of NaX are present at exchange 4 at transport step 10?
A. 9.498e... | A |
157 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the molality of HCl at solution 4 at transport step 10?
A. 3.323e-11
B... | C |
158 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the saturation index of H2O (g) at solution 4 and transport step 10?
A.... | D |
161 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the activity of Na+ in solution 3 at transport step 10?
A. 9.444e-04
B... | A |
162 | Set up a 1D transport problem with 10 cells and 10 shifts. The initial solution is at pH 7.0, Ca 1.0, and Cl 2.0 . The infilling solution is pH 7.0, Na 1.0, Cl 1.0. For all 10 cells, define 0.001 moles of exchange site, equilibrate 1.
What is the alkalinity of solution 3 at transport step 10?
A. 1.417e-09
B. 1.4... | A |
173 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the pH at reaction step 5?
A. 6.175
B. 6.178
C. 6.172
D. 6.171 | B |
174 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the specific conductance at reaction step 5?
A. 76
B. 79
C. 77
D. 73 | C |
175 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the ionic strength at reaction step 5?
A. 3.389e-04
B. 3.385e-04
C. 3.382e-04
D. 3.384e-04 | B |
176 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the molality of Ba at reaction step 5?
A. 1.460e-05
B. 1.458e-05
C. 1.452e-05
D. 1.456e-05 | D |
177 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the saturation index of Barite at reaction step 5?
A. 0.72
B. 0.77
C. 0.78
D. 0.73 | A |
178 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the saturation index of Barite at reaction step 4?
A. 0.76
B. 0.72
C. 0.73
D. 0.78 | A |
179 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the specific conductance of the solution at reaction step 4?
A. 61
B. 67
C. 63
D. 62 | C |
180 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the saturation index of Barite at reaction step 3?
A. 0.82
B. 0.83
C. 0.85
D. 0.88 | B |
181 | Create a solution at 25 degrees C, 2.0 mg/L Ba, 15.0 mg/L S(6). Raise the temperature from 25 to 95 in 5 steps.
What is the molality of S(6) at reaction step 3?
A. 1.563e-04
B. 1.561e-04
C. 1.562e-04
D. 1.566e-04 | B |
182 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the viscosity of the resulting solution?
A. 1.13759
B. 1.13757
C. 1.13758
D. 1.13753 | B |
183 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
How many moles of CH4(g) are there?
A. 2.991e-03
B. 2.993e-03
C. 2.992e-03
D. 2.990e-03 | C |
184 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the molality of C(-4) in solution?
A. 2.009e-03
B. 2.008e-03
C. 2.003e-03
D. 2.002e-03 | B |
185 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the saturation index of CO2(g)?
A. -7.81
B. -7.88
C. -7.83
D. -7.86 | D |
187 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the pe of the solution?
A. -4.587
B. -4.588
C. -4.584
D. -4.581 | C |
188 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the molality of CO2 in solution?
A. 6.279e-10
B. 6.278e-10
C. 6.277e-10
D. 6.273e-10 | C |
189 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the density of the solution?
A. 0.99906
B. 0.99904
C. 0.99901
D. 0.99902 | A |
190 | Create a solution at 15 degrees C with 5.0 mmol/kgw of C(-4). Set a gas phase at fixed pressure of 1.0, 15 degrees C, and 0 CH4(g).
What is the ionic strength of the solution?
A. 7.434e-08
B. 7.436e-08
C. 7.437e-08
D. 7.433e-08 | A |
191 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the pH of the resulting s... | D |
193 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the specific conductance ... | B |
194 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the viscosity of the resu... | D |
195 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
How many moles of calcite precipi... | D |
196 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the molality of Ca+2 in t... | B |
197 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the activity of Cl- in th... | C |
198 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the saturation index of A... | C |
199 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the saturation index of H... | A |
200 | Initialize a solution at 25 degrees C, pH 8.0, with 50 ppm Ca, 12 ppm Mg, 20 ppm Na, 2 ppm K, 150 ppm Alkalinity, 40 ppm S(6), 15 ppm Cl. Using this solution. remove 50.0 moles of water and set equilibrium phases of calcite, gypsum, and halite with 0 moles of each present initially.
What is the saturation index of T... | B |
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