C- more than one light year or B-exactly one light year
Explanation:
As
is a covalent compound because it is made up by the combination of two non-metal atoms. Atomic number of an iodine atom is 53 and it contains 7 valence electrons as it belongs to group 17 of the periodic table.
Therefore, sharing of electrons will take place when two iodine atoms chemically combine with each other leading to the formation of a covalent bonding.
Hence, weak forces like london dispersion forces will be present between a molecule of
.
The weak intermolecular forces which can arise either between nucleus and electrons or between electron-electron are known as dispersion forces. These forces are also known as London dispersion forces and these are temporary in nature.
thus, we can conclude that london dispersion force is the major attractive force that exists among different
molecules in the solid.
The number of grams of NaCl required to make 150.0 ml of a 5.000m solution is 43.875 grams
<u><em>calculation</em></u>
Step 1: calculate moles of NaCl
moles= molarity x volume in liters
volume in liters = 150.0 ml/1000= 0.15 l
moles is= 5.000mol/l x0.15 l =0.75 moles
Step2 : find mass
mass= moles x molar mass
molar mass of NaCl= 23 +35.5 = 58.5 g/mol
mass= 0.75 moles x58.5 g/mol = 43.875 grams
Here is a site my buddie has to help you. Well co-owner..
https://www.quora.com/Why-is-fresly-prepared-FeSO4-required-for-the-ring-test
Answer : The partial pressure of
is 102.3 mmHg.
Explanation :
As per question,
Mass of
= 62.9 g
Mass of
= 33.2 g
Molar mass of
= 18 g/mole
Molar mass of
= 62 g/mole
First we have to calculate the moles of
and
.


Now we have to calculate the mole fraction of
and
.


Now we have to partial pressure of
.
According to the Raoult's law,

where,
= partial pressure of water vapor
= total pressure of gas
= mole fraction of water vapor


Therefore, the partial pressure of
is 102.3 mmHg.