00:01
In this problem, we have given that an irregular shaped piece of copper is placed in a measuring cup containing 3 .5 fluid ounces of water.
00:13
So, mass of water denoted by mw is equal to 3 .5 ounces.
00:39
After addition of the metal, the water level rises to 5 .5 ounces.
00:44
2 fluid ounces.
00:48
So, mass of water with copper denoted by mwc is equal to 5 .2 ounces.
01:20
So we can write mass of copper is equal to mwc minus mw that is mass of water with copper minus mass of water.
01:47
So we get 5 .2 minus 3 .5 ounces which is equal to 1 .7 ounces.
02:04
We know that 1 ounce is equal to 28 .35 grams.
02:18
So mass of copper is equal to.
02:37
To 48 .1942 grams.
02:50
Here we have given density of copper is 8 .78 gram per ml.
03:28
So density of copper is denoted by d which is equal to 8 .78 gram per amel.
03:42
Now we have to find the volume.
03:44
Of a single atom of copper in cubic meter.
03:49
So, first we have to find number of atoms of copper in the given piece.
04:01
So, we can write number of atoms in copper piece is equal to mass of copper piece divide by molecular mass or atomic mass...