How many electrons does it take to have a total charge of -1.00 coulombs?
How many electrons does it take to have a total charge of -1.00 coulombs?
One electron has a charge of e=1.6x10^-19 coulombs. How many electrons must be transferred from an object for it to have a total charge of q=3.2x010^-3 coulombs?
A small piece of dust has a net negative charge of -2.1 micro coulombs. How many extra electrons does it have?
What is the total negative charge, in coulombs, of all the electrons in a small 1.05g sphere of carbon? One mole of C is 12.0g , and each atom contains 6 protons and 6 electrons. Q = ?5.06
2. A large molecule contains a total of 165a protons and 1871 neutrons. a. How many electrons does the molecule contain if it has a net charge of oC? b. How many electrons does each molecule contain if 15 000 of these molecules have a total charge of -7.x 105C? c. How many electrons does each molecule contain if 15 000 of these molecules have a total charge of 2.4 x 105C? le brought close to, but not touching, where...
How many valence electrons does an atom of praseodymium, Pr, have? How many unpaired electrons does an atom of Samarium, Sm, have? What is the geometry for the ClO4- ion? What is the bond angle in the ClO4- ion?
How many electrons does each inolecule contain il 15 000 of these molecules have a total charge of 24*1007 is browsit done to, but not touching cosphere on an insulated base. A second sphere, B, of the same shape, size and material carrying a car Describe what happens to the charges on spheres A and B as they are brought close together but not touching b. If we now remove sphere B, what is the charge on sphere A? c....
How many coulombs (C) of charge are required to cause reduction of 0.25 mole of Cu2+ to Cu? Hint: 1 mol of electrons = 96500C/mol In the reaction of Cu2+ to Cu,2 moles of electrons are gained 2.4x104C 0.50 € 0.25 14.8× 104C 1.2 x 10°C
a) Find the total amount of charge transferred in Coulombs from a current of 0.338 A in 485 seconds. b) Then, determine how many electrons this amount of charge represents. c) Based on the number of electrons that passes through the wire, determine the number of Copper atoms that moved from the Copper metal to the Zinc. Cu(s) --> Cu2+ (aq) + 2e-. d) Using this information find Avogadro's number. I found the initial mass of the copper to be...
There is a current of 10 A in a 100 W resistor. (a) How many coulombs of charge and (b) how many electrons passed through any cross-section of the resistor in 1-minute?
2 Consider the electron configuration for zirconium. How many outer electrons does it have? How many valence electrons does it have? How many core electrons does it have? Enter your answer as an integer value.