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2 attempts left Check my work Enter your answer in the provided box. A construction company...
3 attempts left Check my work Enter your answer in the provided box. A construction company...
3 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 43.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as the cathode. If the voltage...
i only gwt four trys please and thank you for helping Enter your answer in the...
i only gwt four trys please and thank you for helping
Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 35.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as...
3 attempts left Check my work Be sure to answer all parts. A volume of 66...
3 attempts left Check my work Be sure to answer all parts. A volume of 66 mL of 0.080 M NaF is mixed with 22 mL of 0.20 M Sr(NO3)2. Calculate the concentrations of the following ions in the final solution.(Ksp for SrF2 2.0 x 10-10) [NO3-] [sx*] [F1 alue: 0.00 points 3 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 34.0...
5 attempts left Check my work Enter your answer in the provided box. A constant current...
5 attempts left Check my work Enter your answer in the provided box. A constant current is passed through an electrolytic cell containing molten MgC2 for 17.0 h. If 4.30 x 105 g of Cl2 are obtained, what is the current in amperes?
3 attempts left Check my work Enter your answer in the provided box. A chemical engineer...
3 attempts left Check my work Enter your answer in the provided box. A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to Feat in acid and then titrating the Fe?* with MnO4 A 1.0986-g sample was dissolved in acid and then titrated with 31.36 mL of 0.04891 M KMnO4. The balanced equation is 8 H*(aq) + 5 Fe2+ (aq)+ Mno, (aq) → 5 Fe3+(aq) + Mn²+(aq) + 4 H20(1) Calculate the...
2 attempts left Check my work Enter your answer in the provided box. Insulin is a...
2 attempts left Check my work Enter your answer in the provided box. Insulin is a polypeptide hormone released from the pancreas that stimulates fat and muscle to take up glucose. In a certain patient, it has a first-order half-life in the blood of 3.9 min. To maintain an adequate blood concentration of insulin, it must be replenished in a time interval equal to 1/k. How long is the time interval in this patient? min
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for...
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for the reaction at 25°C. 2C6H61) + 1502(8) 12C028) + 6H20(1) agº = kJ AH° (kJ/mol Agº (kJ/mol) sº (J/K mol) 5.69 2.4 Substance C(graphite) C(diamond) CO(g) CO2(g) CO2(aq) C0,- (aq) O(g) O2(8) O3(aq) O3(8) H20(1) CH 1.90 -110.5 -393.5 -412.9 -676.3 249.4 2.87 --137.3 -394.4 -386.2 --528.1 230.1 0 16.3 163.4 -237.2 124.5 197.9 213.6 121.3 -53.1 160.95 205.0 110.88 237.6 -12.09 142.2 -285.8...
1 attempts left Check my work Enter your answer in the provided box. For the simple...
1 attempts left Check my work Enter your answer in the provided box. For the simple decomposition reaction AB(g) → A(g) + B(g) rate = k[AB] and k = 0.25 L/mol's. How long will it take for [AB] to reach 1/3 of its initial concentration of 1.50 M? + = 8.00 S es
5 attempts left Check my work Enter your answer in the provided box. Insulin is a...
5 attempts left Check my work Enter your answer in the provided box. Insulin is a polypeptide hormone released from the pancreas that stimulates fat and muscle to take up glucose. In a certain patient, it has a first-order half-life in the blood of 3.6 min. To maintain an adequate blood concentration of insulin, it must be replenished in a time interval equal to 1/k. How long is the time interval in this patient? min
2 attempts left Check my work Enter your answer in the provided box. Many drugs decompose...
2 attempts left Check my work Enter your answer in the provided box. Many drugs decompose in blood by a first-order process. Two tablets of aspirin supply 0.60 g of the active compound. After 30 min, this compound reaches a maximum concentration of 2 mg/100 mL of blood. If the half-life for its breakdown is 90 min, what is its concentration (in mg/100 mL) 2.5 h after it reaches its maximum concentration? mg/100 mL
3 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 43.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as the cathode. If the voltage...
i only gwt four trys please and thank you for helping
Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 35.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as...
3 attempts left Check my work Be sure to answer all parts. A volume of 66 mL of 0.080 M NaF is mixed with 22 mL of 0.20 M Sr(NO3)2. Calculate the concentrations of the following ions in the final solution.(Ksp for SrF2 2.0 x 10-10) [NO3-] [sx*] [F1 alue: 0.00 points 3 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 34.0...
5 attempts left Check my work Enter your answer in the provided box. A constant current is passed through an electrolytic cell containing molten MgC2 for 17.0 h. If 4.30 x 105 g of Cl2 are obtained, what is the current in amperes?
3 attempts left Check my work Enter your answer in the provided box. A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to Feat in acid and then titrating the Fe?* with MnO4 A 1.0986-g sample was dissolved in acid and then titrated with 31.36 mL of 0.04891 M KMnO4. The balanced equation is 8 H*(aq) + 5 Fe2+ (aq)+ Mno, (aq) → 5 Fe3+(aq) + Mn²+(aq) + 4 H20(1) Calculate the...
2 attempts left Check my work Enter your answer in the provided box. Insulin is a polypeptide hormone released from the pancreas that stimulates fat and muscle to take up glucose. In a certain patient, it has a first-order half-life in the blood of 3.9 min. To maintain an adequate blood concentration of insulin, it must be replenished in a time interval equal to 1/k. How long is the time interval in this patient? min
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for the reaction at 25°C. 2C6H61) + 1502(8) 12C028) + 6H20(1) agº = kJ AH° (kJ/mol Agº (kJ/mol) sº (J/K mol) 5.69 2.4 Substance C(graphite) C(diamond) CO(g) CO2(g) CO2(aq) C0,- (aq) O(g) O2(8) O3(aq) O3(8) H20(1) CH 1.90 -110.5 -393.5 -412.9 -676.3 249.4 2.87 --137.3 -394.4 -386.2 --528.1 230.1 0 16.3 163.4 -237.2 124.5 197.9 213.6 121.3 -53.1 160.95 205.0 110.88 237.6 -12.09 142.2 -285.8...
1 attempts left Check my work Enter your answer in the provided box. For the simple decomposition reaction AB(g) → A(g) + B(g) rate = k[AB] and k = 0.25 L/mol's. How long will it take for [AB] to reach 1/3 of its initial concentration of 1.50 M? + = 8.00 S es
5 attempts left Check my work Enter your answer in the provided box. Insulin is a polypeptide hormone released from the pancreas that stimulates fat and muscle to take up glucose. In a certain patient, it has a first-order half-life in the blood of 3.6 min. To maintain an adequate blood concentration of insulin, it must be replenished in a time interval equal to 1/k. How long is the time interval in this patient? min
2 attempts left Check my work Enter your answer in the provided box. Many drugs decompose in blood by a first-order process. Two tablets of aspirin supply 0.60 g of the active compound. After 30 min, this compound reaches a maximum concentration of 2 mg/100 mL of blood. If the half-life for its breakdown is 90 min, what is its concentration (in mg/100 mL) 2.5 h after it reaches its maximum concentration? mg/100 mL
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