Answer:
The molarity of the solution is 1.7 
.
Explanation:
Molarity (M) or Molar Concentration is the number of moles of solute that are dissolved in a certain volume.
The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:
Molarity is expressed in units .
In this case, you know:
- moles of solute= 5.1
- volume= 3 L
Replacing:
Solving:
Molarity= 1.7
<u><em>The molarity of the solution is 1.7 </em></u><u><em>.</em></u>
As atomic number increases atomic radii also increase down group 1. ionisation energy down group 1 will also decrease because as atomic radii gets bigger there is less electrostatic force between nuclei and electrons so less energy needed to remove valence electron.
It is saturated when the solute is dissolved in the solvent. It is supersaturated when the solute is not/cannot be dissolved by the solvent.
Answer:
-6688 J
Explanation:
So for this question we have to use equation q=(m)(c)(deltaT)
Mass=20.0 grams
C=4.18 J/g
delta T= final-initial= 5-85=-80
q=(20.0)(4.18)(-80)
q=-6688 J
