Explanation:
The molecules move more slowly and their average kinetic energy decreases
Convert grams to moles
moles to moles
moles to grams
A. 2.99g
b. 20.88g
sent a picture of the work. hope you see it
Characteristics of a Precipitate:
A precipitate is characterized by the following properties:
Appears as a solid species.
Settled down at the bottom of the reaction pot.
Insoluble in the corresponding solvent.
The mass percent of sulfurous acid in the new solution : 38.9%
<h3>Further explanation</h3>
<em>In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.</em>
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solution 1
composition :
solution 2(new solution)
composition :
- Total mass of new solution after water evaporated
- %mass of acid in a new solution
Answer:
Number of moles = 0.125 mol
Explanation:
Given data:
Mass of calcium = 5.00 g
Number of moles = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Molar mass of calcium = 40 g/mol
By putting values,
Number of moles = 5.00 g/ 40 g/mol
Number of moles = 0.125 mol