Two copper plates are immersed in a copper sulfate solution and connected to a battery. The reading of the Ammeter connected to the cell is 2.5 A and this current lasted for three hours. If the atomic mass of copper is 63.6 u (lu 1.66 x 10-27 kg), and two electrons are needed to discharge one copper ion, the mass of copper deposited on the Cathode plate is %3D a) 0.71 gr c) 3.56 gr c) 17.82 gr. b) 2.14 gr d) 8.91 gr

Two copper plates are immersed in a copper sulfate solution and connected to a battery. The reading of the Ammeter connected to the cell is 2.5 A and this current lasted for three hours. If the atomic mass of copper is 63.6 u (lu 1.66 x 10-27 kg), and two electrons are needed to discharge one copper ion, the mass of copper deposited on the Cathode plate is %3D a) 0.71 gr c) 3.56 gr c) 17.82 gr. b) 2.14 gr d) 8.91 gr

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 81CP: A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The...

See similar textbooks

Similar questions

A current of I= 25A is drawn from a 100-V batteryfor 30 seconds. By how much is the chemical energy reduced?
The current of an election beam has a measuredcurrent of I=50.00A with a radius of 1.00 mm2. What is the magnitude of the current density of the beam?
A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The adensity of copper is =89.50g/cm2 . One mole ofcopper atoms (6.021023atoms) has a mass ofapproximately 63.50 g. What is the magnitude of the drift velocity of the elections, assuming that each copper atom contributes one free electron to the current?
What current flows through a 2.54-cm-diameter rod of pure silicon that is 20.0 cm long, when 1.00 × 103 V is applied to it? (Such a rod may be used to make nuclearparticle detectors, for example.)
A wire 50m long and 2mm in diameter is connected to a source with a potential difference of 9.11 V l, and the current is found to be 36 A. Assume a temperature of 20°C and identify the metal out of which the wire is made?
A current of 0.300 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heart beat and disrupting the flow of blood (and thus oxygen) to your brain. If that current persists for 1.39 min, how many conduction electrons pass through your heart?
How many seconds will it take for 9.5 x 10¹² electrons (1.6 x 10^-19 C), take to pass through a conductor with a current of 120 ηA?
What is the current in milliamperes produced by the solar cells of a pocket calculator through which 2.00 C of charge passes in 9.00 h?
A wire 50.0 m long and 2.00 mm in diameter is connected to a source with a potential difference of 9.11 V, and the current is found to be 5.72 A. Assume a temperature of 20°C and, using the table below, identify the metal out of which the wire is made. copper, gold, iron, or silver
discuss how current flows in n type and p type semi-conductors
Suppose you have a rod of pure silicon with a diameter of 2.79cm and a length of 20.6cm. These rods are often used in experiments, such as the Large Hadron Collider in France/Switzerland to detect high-energy particles, and they have a very high resistivity of 2300Ω⋅m. What current, in amperes, flows through the rod when a potential difference of 1.23* 10^3 V is applied between its ends ?
What current flows through a 2.58-cm-diameter rod of pure silicon that is 19.0 cm long, when 1.00 ✕ 103 V is applied to it?