QUESTION 5 How many coulombs are there in one mole of charge? O'A. 1.6 x 10-19 B. 96485 C: 6.2 x 1018 OD. 1 OE. 6.0...
QUESTION 7 How many molecules are present in one mole of water H20? a. 1.66 x 10-24 3.00 x 10-23 3.24 x 1023 6.02 x 1023 b. C. d.
An electron has a charge of -1.6 x 10-19 C. How many electrons would be needed to produce a net charge of -12.4 x 10-5 The required number of electrons is 1014
13.1 Charge Charge is quantized: quantum of charge e 1.6 x 10-19 C (coulombs). Any charge qtne,n- integer. Total charge is conserved in an isolated system. In these problems, ignore gravitational attraction between objects unless mentioned. explicitly 1. Name a few things in your real-life experience that are quantized, ie. are an integer multiple of some smallest quantity 2. When you balance a chemical reaction, you make sure that what is/are the same on both sides of the chemical equation?...
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
moles of C. 6) 0.400 mole of sucrose, C12H22011. contains A) 12 B) 6.02 x 1023 C) 5.02 x 1022 D) 2.89 x 1024 E) 4.80 7) How many moles of carbon atoms are there in 0.500 mole of C2H6? A) 0.500 mole B) 1.00 mole C) 3.00 moles D) 6.02 x 1023 moles E) 4.00 moles 8) Calculate the molar mass of magnesium chloride, Mg (12. A) 24.31 g/mole B) 95.21 g/mole C) 125.9 g/mole D) 59.76 g/mole E)...
Question 5 One mole of something consists of units of that substance. 6.02 X 1023 ] 1.66 X 1024 ] 1.008 ] 32.00 12.01
12] The charge on one proton is approximately 1.60217662 x 1019c coulombs. (a) How many significant figures are shown? q (b) Write this to 5 significant figures (c) How many excess protons are on a can that has a net charge of +1.000 pC? 14 oLIe
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?
How many carbon atoms are in 8.44 mL of C3H6O? 1 mole = 6.02 x 1023 atoms 1 mL = 0.898 g The answer has to be in the correct significant figures. Not sure how to do this.
The charge of some quarks or anti-quarks is a. · (1.6 × 10−19) C. b. 1 · (1.6 × 10−19) C. c. 0. d. · (1.6 × 10−19) C.