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August 2, 2014

Search: What charge in coulombs, is required to deposit 0.301 g Cu(s) from a solution of Cu2+ (aq)?

Number of results: 11,588

Inorganic chemistry
What change in coulombs, is required to deposit 0.301 g Cu(s) from a solution of Cu^2+(aq)
April 11, 2009 by Steve

Inorganic chemistry
What charge in coulombs is required to deposit 0.301g Cu(s) from a solution of Cu^2+? Cu^2+ 2e^- = Cu 0.301g/63.5g/mol = 4.7 x 10^-3 mol Cu (4.7 x 10^-3 mol Cu) (2 mol e^-/mol Cu) I should be able to mutiply that by 96,500 (Faraday number) to get 914C, but I don't. ...
April 12, 2009 by Steve

physics 2
A charge of -6.8 micro-Coulombs is placed at x = 0, y = 0. A charge of -18.5 micro-Coulombs is placed at x = 0, y = +37 cm. Another charge of -12.9 micro-Coulombs is placed at x = +17 cm, y = 0 cm. What is the angle the total electric force on the charge at x = +17 cm, y = 0 ...
January 18, 2013 by Jessica

physics2
A charge of -6.5 micro-Coulombs is placed at the origin of a coordinate system. Another charge of -7.6 micro-Coulombs is placed at x = +0.29 m, y = +0.17 m. A third charge of +14 micro-Coulombs is placed at x = -0.29 m, y = 0 m. What is the magnitude of the total electric ...
January 29, 2011 by kelly

physics
A point charge of +10 micro-coulombs lies at x = -0.39 m, y = 0 m, a point charge of -5.7 micro-coulombs lies at x = +0.39 m, y = 0 m, and a point charge of +14.9 micro-coulombs lies at x = 0 m, y = -0.3 m. A point charge of +10 micro-coulombs is moves from x = 0 m, y = +0.11 ...
February 10, 2012 by Mandaleigh

Math
Two small conducting spheres are identical except that sphere x has a charge of -10 micro coulombs and sphere y has a charge of + 6 micro coulombs . After the spheres are brought in contact and then separated,what is the charge on each sphere ,in micro coulombs ?
August 18, 2011 by Troy

physics
An infinite sheet with a surface charge density of -2.1 micro-coulombs/m2 runs parallel to the x axis. Another infinite sheet a surface charge density of +2.1 micro-coulombs/m2 runs parallel to the y axis. A charge of -4.1 micro-coulombs moves at a 45 degree angle towards the ...
February 10, 2012 by Mandaleigh

physics
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series: 1st - 6 micro Coulombs (positive charge) 2nd - 1.5 micro Coulombs (positive charge) 3dr - 2 micro Coulombs (negative charge) Distance between 1st and 2nd - 3cm Distance...
May 16, 2012 by andrew

physics
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series: 1st - 6 micro Coulombs (positive charge) 2nd - 1.5 micro Coulombs (positive charge) 3dr - 2 micro Coulombs (negative charge) Distance between 1st and 2nd - 3cm Distance...
May 21, 2012 by andrew

physics 2
Three charges are placed on the y axis. One charge of -3.2 micro-Coulombs is placed at y = 0, another charge of +2.6 micro-Coulombs is placed at y = -0.29 meters, and another unknown charge is placed at y = +0.51 meters. The total force on the charge at y = 0 due to the other ...
January 18, 2013 by Jessica

chem
If 10.4 liters of O2 at STP are produced by the electrolysis of water, how many coulombs of charge were required?
April 20, 2013 by sarah

chemistry
If 10.4 liters of O2 at STP are produced by the electrolysis of water, how many coulombs of charge were required?
April 21, 2013 by sarah

physics
Using Coulomb's Law, calculate the force of repulsion between a positive charge of 110 Coulombs and another positive charge of 220 coulombs separated by a distance of 2 meters. Use scientific notation. (Hint: use the proportionality constant)
June 17, 2012 by LL

physics
Using Coulomb's Law, calculate the force of repulsion between a positive charge of 110 Coulombs and another positive charge of 220 coulombs separated by a distance of 2 meters. Use scientific notation. (Hint: use the proportionality constant)
June 17, 2012 by LL

Chemistry
If 30.3 liters of O2 at 273K and 1 atm are produced by the electrolysis of water, how many coulombs of charge were required?
November 19, 2010 by Dana

Chemistry
If 30.3 liters of O2 at 273K and 1 atm are produced by the electrolysis of water, how many coulombs of charge were required?
November 19, 2010 by Dana

Chemistry
If 30.3 liters of O2 at 273K and 1 atm are produced by the electrolysis of water, how many coulombs of charge were required?
November 19, 2010 by Dana

physics2
Charges are placed on an equilateral triangle (all angles are equal and equal to 60 degrees). The length of each side of the triangle is 5.7 meters. A charge of +7.1 micro-Coulombs is placed at the bottom corner of the triangle and another charge of +7.1 micro-Coulombs is ...
January 29, 2011 by kelly

PHYSICS
5.00x 10^-2 mass with charge +0.75 micro coulombs is hung by a thin insulated thread. Charge of -0.9 micro coulombs is held .15meters directly to the right so that the thread makes an angle with the vertical. What is the angle and the tension in the string?
March 29, 2011 by T

PHYSICS
(#1) If two pith balls - one which is neutral and another which has a charge of -9.6 uC (micro-Coulombs) - are touched together, how many extra electrons will each ball have? (#2) Charge q1 = 6 uC is at the origin, charge q2 = 7 uC is at y = 2m, x = 0, charge q3 = 1.5 uC is at...
April 8, 2009 by Bill

physics
A point charge of +4.6 micro-coulombs lies at x = 0 and a point charge of -7.3 micro-coulombs lies at x = +3.3 m. Where on the x axis, is the total electric potential equal to zero? Answer in meters.
February 10, 2012 by Mandaleigh

physics
A sphere has a radius of 0.20 meters and has a uniform surface charge density equal to 6.3 micro coulombs per meter squared. A second point charge has a magnitude of 0.58 micro coulombs and is 0.61 meters away from the center of the sphere. Find the magnitude of the force ...
March 17, 2012 by doug

physics-E&M
An infinite line charge of uniform linear charge density lambda = -2.5 micro Coulombs lies parallel to the y axis at x = 0 m. A point charge of 3.5 micro Coulombs is located at x = 2.5 m, y = 3.5 m. Find the x- and y-components of the electric field at x = 3.5 m, y = 3.0 m. So...
January 27, 2012 by aaron b.

physics
A conducting spherical shell with a total charge of +12.6 micro-coulombs has a point charge of -3.6 micro-coulombs placed at its center. The negative point charge will push the electrons in the spherical shell away from it. This will leave the inner shell with positive charge ...
February 10, 2012 by Mandaleigh

physics E&M
I posted a question on here earlier but I wasn't able to solve from what the person had told me. An infinite line charge of uniform linear charge density lambda = -2.5 micro Coulombs lies parallel to the y axis at x = 0 m. A point charge of 3.5 micro Coulombs is located at x...
January 27, 2012 by aaron b. (again sorry)

physics (coulombs law)
a charge +6 C experiences a force of 2mN in +x direction. a)what was the electric field there before charge was placed ? b)describe the force which a -2c charge would experience if it is located at the point in place of the +6c for a) i assumed the charge is 0 'cos there's no ...
December 8, 2012 by lola

Chemistry
In 1909, Robert Millikan performed an experiment involving tiny, charged drops of oil. The drops were charged because they had picked up extra electrons. Millikan was able to measure the charge on each drop in coulombs. Here is an example of what his data may have looked like...
September 11, 2011 by Anonymous

physics/biology
Determine the number of uncompensated ions (both total number and as a percentage of the bulk ions) required to establish a charge of 100mV across a membrane of a spherical cell that is 25 m in diameter. Assume that the total number of ions inside and outside the cell is .5M...
January 30, 2007 by Ann

physics
Given that the mass of an electron is 9.1 x 10^-28 grams and the charge on an electron is 1.6 x 10^-19 Coulombs, calculate the voltage required to lift an electron 5 cm. not quite sure how to do this.
May 19, 2012 by Martin

physics/biology
Determine the number of uncompensated ions (both total number and as a percentage of the bulk ions) required to establish a charge of 100mV across a membrane of a spherical cell that is 25 μm in diameter. Assume that the total number of ions inside and outside the cell is...
January 29, 2007 by Anna

Physics
What is the electric field at a point midway between a -7.34 micro coulombs and a +4.49 micro coulombs charge apart 31.5m apart?
July 9, 2013 by Amalia

Calculus
The total charge in an electrical circuit as a function of time is given by q=t/(t^2+1) coulombs. Find the maximum charge of q.
March 10, 2012 by Candy

Gen Chem
Chromium can be electroplated from an aqueous solution containing sulfuric acid and chromic acid, H2CrO4. What current is required to deposit chromium at a rate of 1.25 g/min? 1mol H2CrO4 has 51.996 grams current= coulomb/sec How do I convert to get coulombs from the problem?
March 28, 2008 by Sarah H

physics
given that the mass of an electron is 9.1 x 10^-28 grams and the charge on an electron is 1.6 x 10^-19 Coulombs, calculate the voltage required to lift an electron 5 cm. the question was previously answered, but I did'nt understand it .. could some show me again please.
May 19, 2012 by Martin

Physics
The total charge in an electrical circuit as a function of time is given by q=t/t^2+1 coulombs. Find the maximum charge q. Please provide your reasoning.
May 3, 2012 by Liz

physics coulombs law
a negative charge 5.0 X 10^-4 C exerts a repulstio force of 7.0 N .on second charge away 0.05 m away. what is the sign and magnitude of the second charge
December 5, 2012 by adithya

Physics
Four coulombs of positive charge flow from the +6 V positive terminal of a battery to the negative terminal at 0V. What is the charge in potential energy of the charge.
January 19, 2011 by Adriana

physics
A charge of 4x10^(-3) coulombs exerts a force of 2,880 Nt on charge q2 at a distance of 0.461 m. The size of q2 is most nearly____ A- 0.017 mC B- 0.032 mC C- o.32 mC D- 3.2 mC E- 0.025 uC F- 0.050 uC g- 2.17 C
May 31, 2011 by Sam

Physics
Current flow through a lamp is 1.3 A. How many Coulombs of charge are passed through the lamp in 2 minutes? Formula for coulombs and current? Not sure..
February 3, 2013 by Physics fail

Finance
YOU DEPOSIT $5,000 INTO THE FIRST NATIONAL BANK OF FIN 301 AND EARN 2.5% COMPOUNDED CONTINUOUSLY. HOW MUCH WILL YOU HAVE IN 5 YEARS?
June 25, 2012 by JAMIE

Physics
You have two metal spheres, one with radius 10 cm, the other 7 cm. They each possess a charge of 3 x 10-6 Coulombs. If you touch them together and let the charge come to equilibrium, how much will there be on each sphere?
February 27, 2013 by lindsey

physics
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.45 m. A third charge of +4q is located on the x axis at such a place that the net electrostatic force on the charge at the origin doubles, its direction remaining unchanged. ...
January 31, 2010 by jenn

physics
The final charge on each of the three separated spheres in part (c) is +3.0 µC. How many electrons would have to be added to one of the three spheres to make it electrically neutral? Divide 3*10^-6 Coulombs by 1.6*10^-19 Coulombs per electron. The will be the number of ...
January 21, 2007 by Ann

chemistry
"To save on production costs, most automobile bumpers are never coated with more than 200 g of chromium. Determine how much time a standard bumper should be immersed in a chromium vat." This is what I have so far- 96,485 coulombs are required to plate 1 Cr; 52/6 = 8.67g. To ...
June 17, 2014 by anonymous

math
Charge Q coulombs at time t seconds is given by the differential equation:   0 C Q dt dQ R where C is the capacitance in farads and R is the resistance in ohms. Solve the equation for Q given that Q=Q0 when t=0. A circuit possesses a resistance of 250kΩ ...
May 17, 2011 by Karl Haxell

computers
How many coulombs of charge do 30 10^31 posses?
January 6, 2011 by Anonymous

Columbs Law
I need help with the following questions from my homework. thanks! How does one coulomb of charge compare with the charge of a single electron? How is coulombs law similar to Newton's law of gravitation? How is it different?
November 5, 2007 by Whit

Chemistry - Electroplating - URGENT
"To save on production costs, most automobile bumpers are never coated with more than 200 g of chromium. Determine how much time a standard bumper should be immersed in a chromium vat." This is what I have so far- 96,485 coulombs are required to plate 1 Cr; 52/6 = 8.67g. To ...
June 17, 2014 by Em

Reserves-PLEASE HELP!
The Norfolk Bank has $18,000 in excess reservces and the reserve ratio is 20 percent. Which level of checkable deposits and reserves might this bank hold? a. $160,000 in checkable-deposit liabilities and $47,000 in reserves. b. $140,00 in checkable-deposit liabilities and $46,...
November 5, 2006 by Amy

College Physics
The magnitude of the electrostatic force between two identical ions that are separated by a distance of 7.8 10-10 m is 97.10 10-9 N. (a) What is the charge (in Coulombs) of each ion? (b) How many electrons are missing from each ion (thus giving the ion its charge ...
July 6, 2012 by Stephanie27

Physics
HOw many electrons make up a charge of -30 micro coulombs???
January 7, 2008 by HELP!!!!

physics
How many coulombs of positive charge are in 3.8 mol of O2 gas?
March 8, 2010 by deb

Physics
A beam of unknown charged particles passes at right angle to the direction of magnetic field of 9.0 10-2 T. If the speed of the particles is 3.0 104 m/s and force experienced by a particle is 8.64 10-16 N, how many electric charges are carried by one particle? {Force} = F = {...
May 26, 2009 by Landon

ICS
I need help solving this question. "Two charges are 10 meters apart. The charge on the positive particle is 1.0 C and the negative charge is 10 Coulombs. Calculate the magnitude of the electrostatic force of attraction between these two charges."
January 25, 2008 by william

Science
An oxygen ion has 8 protons and 6 electrons. What is its charge in coulombs?
May 28, 2014 by Jaden

chemistry
In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (Z). Drop Charge (Z) A 8.4010−15 B 1.9610−14 C 2.2410−14 D 2.5210−14 E 3.64...
March 6, 2010 by Syeda

Chemistry
In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (). Drop Charge () A 1.3810−14 B 3.2210−14 C 3.6810−14 D 4.1410−14 E 5.9810...
September 9, 2011 by Jen

Assist me Plzz!
What is the p.d. between 2 points in a circuit if 200J of electrical energy are changed to other forms of energy when 25 coulombs of electric charge pass? If the charge flows in 10 seconds, what is the current? Science help needed here. Vq=energy you know q, and energy.
April 17, 2007 by Demola

physics
A uniformly charged conducting sphere of 1.2 m diameter has a surface charge density of 7.1 C/m2. (a) Find the net charge in coulombs on the sphere. (b) What is the total electric flux leaving the surface of the sphere?
January 29, 2011 by Ty

College Physics
A uniformly charged conducting sphere of 1.3 m diameter has a surface charge density of 8.7 C/m2. (a) Find the net charge in coulombs on the sphere. (b) What is the total electric flux leaving the surface of the sphere?
July 8, 2012 by Stephanie23-17

Physics
The work done by an electric force in moving a charge from point A to point B is 3.75 x 10^-3 J. The electric potential difference between the two points is VA - VB = 54.6 V. What is the charge? Not sure if I did this correctly: I believe this is an equation: deltaV= (-Wab)/q ...
July 25, 2012 by Dan

physics 2
Two identical positive charges are placed 15 cm apart and the magnitude of the electric force between them is 5.4 Newtons. They then exchange charge (one charge loses some electrons and the other gains the same amount of electrons), but they both still remain positive. After ...
January 18, 2013 by Jessica

Physic II -----UD
A metal sphere is insulated electrically and is given a charge. If 50 electrons are added to the sphere in giving a charge, how many Coulombs are added to the sphere?
January 25, 2014 by Saziye

Physics Superpostion Principle
four charged particles are placed so that each particle is at the corner of a square. the sides of the square are 15 cm. the charge at the upper left corner is +3.0 microcoulombs, the charge at the upper right corner is -6.0 microcoulombs, the charge at teh lower left corner ...
May 16, 2012 by Kelsi

Physics
When a charge of -4 x 10 to the minus 3 coulombs is moved between two points in an electric field, 0.8 joules of work are done on the charge. The potential difference between the two points is 300 V.
May 29, 2011 by Scott

physics
A 1.5 volt battery will increase the potential energy of ________________ coulombs of charge by 0.18 joules.
October 27, 2009 by Alyson

physics
What is the charge of a bare Magnesium nucleus (no electrons, just the protons and neutrons) in Coulombs?
November 10, 2013 by Anonymous

applied physics
if a DC motor uses a775 coulombs of charge in 15 seconds,how much current is produced
May 27, 2008 by Ashleigh

physics
A _____________ volt battery will increase the potential energy of 0.005 coulombs of charge by 29.5 joules.
October 27, 2009 by Alyson

Columbia College
A metal sphere is insulated electrically and is given a charge. If 50 electrons are added to the sphere in giving a charge, how many Coulombs are added to the sphere? Please show step by step...s
January 25, 2014 by Hamide

physics2
A uniform electric field of 2.1 x 106 N/C is directed in the positive x direction. A charge of -4.3 micro-Coulombs with a mass of 7.5 kg is initially moving at 18 m/s in the positive x direction before it enters the field. How many seconds does it take before the charge stops?
January 29, 2011 by kelly

physics
Neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along their length. These impulses propagate when charge suddenly rushes into and then out of a part of the neutron called an axon. Measurements have shown that during ...
January 21, 2008 by Jen

Physics
Two objects, each with a charge of +310-6 C, are located 7 m apart. What is the electric force between them? Use coulombs equation: I will be happy to critique your work.
November 12, 2006 by Laura

Physics
If two pith balls - one which is neutral and another which has a charge of -9.6 uC (micro-Coulombs) - are touched together, how many extra electrons will each ball have?
April 8, 2009 by Steven

Science
How many Coulombs of charge pass through a 95W amplifier plugged into 110V wall socked over the course of a 2 hour concert?
April 20, 2009 by Dave

Physics
Charge A and charge B are 2.00 m apart, and charge A is +3.90 C and charge B is +4.00 C. Charge C is located between them at a certain point and the force on charge C is zero. How far from charge A is charge C?
July 16, 2010 by Bill

physics
A +30 C charge is placed 44 cm from an identical +30 C charge. How much work would be required to move a +0.69 C test charge from a point midway between them to a point 14 cm closer to either of the charges?
January 17, 2012 by Nick

Physics
A +35 C charge is placed 42 cm from an identical +35 C charge. How much work would be required to move a +0.55 C test charge from a point midway between them to a point 8 cm closer to either of the charges?
February 4, 2013 by Anonymous

AP Chemistry
What volume of 6.48 M HNO3 is required to prepare 301 mL of a 1.2 M HNO3 solution? Answer in units of mL.
October 24, 2010 by Anonymous

physics
Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell with total charge 20...
November 10, 2013 by manu

Physics
A chlorine ion contains 17 protons, 16 neutrons, and 18 electrons. What is the net charge of the ion in Coulombs?
May 3, 2012 by Alaine'

physics
How many coulombs of positive charge are there in 8.70 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons?
August 21, 2013 by Justin

physics
How many coulombs of positive charge are there in 8.70 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons?
August 24, 2013 by Justin

physics
what is the electric field at the center of the square? q1 and q2 = -10 micro coulombs q3 and q4= 5 micro coulombs each side is 0.10 m. How do i set this up?
July 7, 2011 by Sarah (C)

physics
A car battery has a rating of 200 amperehours (Ah). This rating is one indication of the total charge that the battery can provide to a circuit before failing. What is the total charge (in coulombs) that this battery can provide? Determine the maximum current that the ...
January 30, 2008 by rick

physics
If a charge of 25 coulombs passes a given point in circuit in a time of 125 minutes determine the current in the circuit
August 22, 2011 by vikram

Physics
A +30 C point charge is placed 32 cm from an identical +30 C charge. How much work would be required to move a +0.45 C test charge from a point midway between them to a point 11 cm closer to either of the charges?
October 16, 2013 by Rex

Phyiscs - due at 11PM EST!!
Two identical conducting spheres, fixed in place, attract each other with a force of 0.114 N when their center to center separation is 45.00 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres have a net positive charge and repel...
April 12, 2011 by Bill

physics
What is the force exerted on 40 micro coulombs by 20 micro coulombs? (charges are separated by 80cm)
May 2, 2012 by paul

Physics
The nucleus of a certain type of uranium atom contains 92 protons and 143 neutrons. What is the total charge of the nucleus in Coulombs?
May 4, 2012 by Hunter

Justin
If 2.00 X 10^20 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?
August 19, 2013 by physics

physics
charge A has a charge of 2C, Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of charge B and has a charge of -1C. if a fourth charge (charge D) is placed 4 meters to the right of charge B, how much charge must it ...
February 11, 2013 by chris

physics
Charge A has a charge of +2C. Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of Charge B and has a charge of -1C. If a fourth charge (Charge D) is placed 4 meters to the right of Charge B, how much charge must it...
August 8, 2013 by Jason

Physics
Charge A has a charge of +2C. Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of Charge B and has a charge of -1C. If a fourth charge (Charge D) is placed 4 meters to the right of Charge B, how much charge must it...
August 8, 2013 by J

physics
what is the electric field at the position 20 cm from Q2 and 60 cm from Q1? Q2=40 micro coulombs Q1=20 micro coulombs Q2 and Q1 are separated by 80 cm
May 2, 2012 by quinton

physics
If 2.00 multiplied by 1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?
August 21, 2013 by Justin

physics
two similar charged small spheres each having a charge of 0.044 micro coulombs are suspended from a point by a thread of length 15 cm each. at equilibrium the angle is 5 degree. what is the mass of each sphere ?
April 13, 2013 by Himanshi

Physics please help
What is the potential halfway between two point charges spaced 1 mm apart if q1=10 micro coulombs and q2= -5 micro coulombs? Attempt at solution: no idea but need to get this right our homework is graded
February 15, 2012 by bel

Physics
If 500 J of work are required to carry a charged particle between two points with a potential difference of 40V, the magnitude of the charge on the particle is: a) 0.040 C b) 12.5 C c) 20C D) cannot be computed unless the path is give e) none of these My solution: I used the ...
March 12, 2007 by susane

physics 2
A charge, q1, of +4.4 micro-coulombs and another unknown charge, q2, are surrounded by a surface. The total flux through the surface is -9.2 x 106 (N m2)/C. These charges are now placed on the x axis. q1 is placed at x = 0, and q2 is placed at x = +114.51 cm. What is the ...
January 25, 2013 by Jessica

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