Answer:
Lesson 3 Quiz ReturntoAssessmentList Part 1 of 4 - 4.0/ 8.0 Points Question 1 of ... in the balloon containing regular air D.Each balloon has an equal number of atoms. ... The purity of those pre-1982 pennies are really about 95% copper (5% zinc ... that had a mass of 3.11 grams, how many atoms of copper would you have?
Explanation:
Answer:
The pressure remains constant
Explanation:
this is an example in charles law where as the temperature increases so does the volume.
Electrical energy changes to heat energy
Answer : The mass of calcium chloride (in g) needed is, 1.92 grams.
Explanation : Given,
Boiling point of elevation constant
for water = 
Mass of water (solvent) = 
Molar mass of
= 110.98 g/mole
Formula used :

where,
= change in boiling point = 
i = Van't Hoff factor = 3 (for electrolyte)
= boiling point constant for water
m = molality
Now put all the given values in this formula, we get


Therefore, the mass of calcium chloride (in g) needed is, 1.92 grams.