The mass of required will be 0.6075 g.
Calculation of mass:
The reaction:
Volume of = 75 mL
Concentration of = 0.100 M
Step 1:
Molarity is moles of solute in 1000 mL of the solution.
Moles of = 0.0075
Step 2:
From the above equation,
2 moles of is precipitated by 1 mole of
So, 0.0075 moles will be precipitated by-
moles of
= 0.00375 moles of
Step 3:
Molar mass of = 162 g/mol
So, Mass of required will be 0.6075 g.
Learn more about Dilution factor here:
brainly.com/question/2186408
#SPJ4
Mechanical energy is an energy that needs a medium to travel. Kinetic energy relates to the skateboarder as he moves across the pipe, and potential relates to right before he leaps onto the pipe with his skateboard.
The correct answer is c.
answer b is incorrect <span />
Answer: 0.50 mole K2O
Explanation: To convert the mass of K2O to moles we will need to find the molar mass of K2O.
47.2 g K2O x 1 mole K2O / 94 g K2O
= 0.50 mole K2O
Answer : The number of oxygen atoms present in glucose are
Explanation :
First we have to calculate the moles of glucose.
Molar mass of glucose = 180 g/mole
Now we have to calculate the number of oxygen atoms.
The formula of glucose is, .
In the glucose molecule, there 6 atoms of carbon, 12 atoms of hyrogen and 6 atoms of oxygen.
As, 1 mole of glucose contains number of oxygen atoms
So, 0.667 mole of glucose contains number of oxygen atoms
Therefore, the number of oxygen atoms present in glucose are