Science Homework!?

Question

The mass of a proton is 1.67 times 10 to the power of negative 18 __.

What is the unit?

Answer 1

You know the proton is thousands of times more massive than an electron, so the mass of a proton is approximately the mass of a hydrogen atom, or half the atomic mass of a di-hydrogen molecule.

Most periodic tables have the atomic mass of a hydrogen atom as about 1.007 grams per mole.

A mole is a number, like a google. A google is 10^100, a one with one hundred zeros behind it. A google pencils end-to-end might stretch across this galaxy. Its a big number. A mole of pencils might just go from here to alpha centauri. A mole is 6.02 * 10^23.

It takes 6.02 * 10^23 atoms of hydrogen to make one gram.

Now its just algebra to determine how many grams per hydrogen atom (or proton). Once you know the mass in one unit, in this case grams, you can compare the value to your value, and look for meaningful conversion factors that would indicate units.

Answer 2

science teacher here :).. according to my book you are off a little on the number
The mass of the proton was determined in a similar way to how the mass of atoms are measured. The particle, whose mass is being determined, is accelerated through an electric field, the particle then passes through a perpendicular magnetic field which deflects the particle (particle must be charged, a proton or an ion for example, for it to deflect). The angle by which it deflects is dependent on the mass of the particle. The mass of the particle can be determined by using the following formula:

Centripetal Force = Force due to magnetic field(B)

(mv2)/r = Bqv

(where m = mass of particle, v = velocity of particle, r= radius of deflected path, B = magnetic field strength, q = charge of particle)
Mass of proton : 1,6726 x 10^(-27) kg
Mass of neutron: 1,6749 x 10^(-27) kg
Mass of electron: 0,00091x10^(-27) kg


a very very very small number of KILOGRAMS...

Answer 3

The numerical values of some overall properties of the proton can be summarized as follows:
charge, 1.602 × 10^19 coulomb;
mass, 1.673 × 10^27 kg;
spin, (½)ℏ (where ℏ is Planck's constant h divided by 2?);
magnetic dipole moment, 1.411 × 10^26 joule/tesla;

radius, about 10^15 m.

Answer 4

Well, I guess it's a microgram (ug), because usually this is given as 1.67 x 10^-27 kg (kilogram), so this looks like the right conversion.

Weird homework question tho.

Answer 5

atomic mass unit (amu)
This is the smallest unit of mass we use in chemistry, and is equivalent to 1/12 the mass of carbon-12.
It is NOT kilogram: that unit is too big for use in such purposes

Answer 6

amu

atomic mass unit

Answer 7

G-Unit!!!!

Answer 8

to the power of -27 kgs

which means to the power of -18 micro grams... micro is the one with µ symbol

Answer 9

Neurons.

Answer 10

properly enable me only whip out the ole McDougal Littell Earth technology e book I fairly have in my closet o wait, maximum persons answering this have not got your textbook the questions could be severe-high quality