The charge on a proton is A: -1.602×10-19C B: 1.602×10-19C C: 0 D: None of the above Solution: Explanation: Protons are the positively charged particles that make up a hydrogen atom's nucleus. A proton has a mass of 1.6726219×10-27 kilograms. A proton's mass is the same as that of a hydrogen atom. One electron and one proton make up a hydrogen atom. Because the mass of an electron is deemed unimportant, the mass of a hydrogen atom can be said to be equal to the mass of a proton. A proton has a mass of 1840 times that of an electron. A proton's charge is the same as and opposite that of an electron. As a result, it has a single positive charge having the value 1.602×10-19C. Final answer: Option B is the correct answer, The charge on a proton is 1.602×10-19C.
The hybridisation of Ni inNi(CO)4 is A:sp2 B:dsp2 C:sp3 D:sp3p Solution: Explanation:-
3d104s04d0
Final Answer:- The hybridization of Ni in Ni(CO)4 complex is (C ) sp3
Express the following in the scientific notation (i) 0.0048 (ii) 234,000 (iii) 8008 (iv) 500.0 (v) 6.0012 Solution: Explanation:-
Final Answer:-
The cell in which the following reaction occurs 2Fe3+ (aq) + 2I- (aq) → 2Fe3+ (aq) + I2 (s) has Ecell = 0.236 V at 298 K. Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction. Solution: Explanation: Eº= 0.236 V T = 293 k We know that G =- nFEº F = 96500 n = 2 (no. of electron) ΔG = -2965000.236 = -45.548kJ From nernst equation Ecell = Eº- 0.591/n logk Ecell = 0 (at equilibrium) Logk = nEº/0.591= 2×0.236/0.591 Logk = 7.98 K = 107.98= 9.616 ×107 Final Answer: Hence standard Gibbs energy = -45.548kJ & equilibrium constant of the cell reaction K = 9.616 107.
The SI unit of weight is A: kilogram B: gram C: newton D: milligram Solution: Explanation: substance's mass can be defined as a measurement of its physical 3D structure and quantity. A substance's mass is usually expressed in kilograms or grams. The kilograme is a metric unit of mass used by the International System of Units. 'kg' is another way of writing it. Final Answer : Thus, option A is the correct answer. A(Kilogram) Page 2
The charge on a proton is A: -1.602×10-19C B: 1.602×10-19C C: 0 D: None of the above Solution: Explanation: Protons are the positively charged particles that make up a hydrogen atom's nucleus. A proton has a mass of 1.6726219×10-27 kilograms. A proton's mass is the same as that of a hydrogen atom. One electron and one proton make up a hydrogen atom. Because the mass of an electron is deemed unimportant, the mass of a hydrogen atom can be said to be equal to the mass of a proton. A proton has a mass of 1840 times that of an electron. A proton's charge is the same as and opposite that of an electron. As a result, it has a single positive charge having the value 1.602×10-19C. Final answer: Option B is the correct answer, The charge on a proton is 1.602×10-19C.
The hybridisation of Ni inNi(CO)4 is A:sp2 B:dsp2 C:sp3 D:sp3p Solution: Explanation:-
3d104s04d0
Final Answer:- The hybridization of Ni in Ni(CO)4 complex is (C ) sp3
Express the following in the scientific notation (i) 0.0048 (ii) 234,000 (iii) 8008 (iv) 500.0 (v) 6.0012 Solution: Explanation:-
Final Answer:-
The cell in which the following reaction occurs 2Fe3+ (aq) + 2I- (aq) → 2Fe3+ (aq) + I2 (s) has Ecell = 0.236 V at 298 K. Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction. Solution: Explanation: Eº= 0.236 V T = 293 k We know that G =- nFEº F = 96500 n = 2 (no. of electron) ΔG = -2965000.236 = -45.548kJ From nernst equation Ecell = Eº- 0.591/n logk Ecell = 0 (at equilibrium) Logk = nEº/0.591= 2×0.236/0.591 Logk = 7.98 K = 107.98= 9.616 ×107 Final Answer: Hence standard Gibbs energy = -45.548kJ & equilibrium constant of the cell reaction K = 9.616 107.
The SI unit of weight is A: kilogram B: gram C: newton D: milligram Solution: Explanation: substance's mass can be defined as a measurement of its physical 3D structure and quantity. A substance's mass is usually expressed in kilograms or grams. The kilograme is a metric unit of mass used by the International System of Units. 'kg' is another way of writing it. Final Answer : Thus, option A is the correct answer. A(Kilogram) Page 3
The charge on a proton is A: -1.602×10-19C B: 1.602×10-19C C: 0 D: None of the above Solution: Explanation: Protons are the positively charged particles that make up a hydrogen atom's nucleus. A proton has a mass of 1.6726219×10-27 kilograms. A proton's mass is the same as that of a hydrogen atom. One electron and one proton make up a hydrogen atom. Because the mass of an electron is deemed unimportant, the mass of a hydrogen atom can be said to be equal to the mass of a proton. A proton has a mass of 1840 times that of an electron. A proton's charge is the same as and opposite that of an electron. As a result, it has a single positive charge having the value 1.602×10-19C. Final answer: Option B is the correct answer, The charge on a proton is 1.602×10-19C.
The hybridisation of Ni inNi(CO)4 is A:sp2 B:dsp2 C:sp3 D:sp3p Solution: Explanation:-
3d104s04d0
Final Answer:- The hybridization of Ni in Ni(CO)4 complex is (C ) sp3
Express the following in the scientific notation (i) 0.0048 (ii) 234,000 (iii) 8008 (iv) 500.0 (v) 6.0012 Solution: Explanation:-
Final Answer:-
The cell in which the following reaction occurs 2Fe3+ (aq) + 2I- (aq) → 2Fe3+ (aq) + I2 (s) has Ecell = 0.236 V at 298 K. Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction. Solution: Explanation: Eº= 0.236 V T = 293 k We know that G =- nFEº F = 96500 n = 2 (no. of electron) ΔG = -2965000.236 = -45.548kJ From nernst equation Ecell = Eº- 0.591/n logk Ecell = 0 (at equilibrium) Logk = nEº/0.591= 2×0.236/0.591 Logk = 7.98 K = 107.98= 9.616 ×107 Final Answer: Hence standard Gibbs energy = -45.548kJ & equilibrium constant of the cell reaction K = 9.616 107.
The SI unit of weight is A: kilogram B: gram C: newton D: milligram Solution: Explanation: substance's mass can be defined as a measurement of its physical 3D structure and quantity. A substance's mass is usually expressed in kilograms or grams. The kilograme is a metric unit of mass used by the International System of Units. 'kg' is another way of writing it. Final Answer : Thus, option A is the correct answer. A(Kilogram) Page 4
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When an electron jumps from n 5 to n 1 in a hydrogen atom the number of spectral lines obtained is?
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