Answer:
0.481 M
Explanation:
The molarity ratio looks like this:
Molarity = moles / volume (L)
Since you have been given both the mass and volume, you can plug them into the equation to find the molarity.
Molarity = moles / volume
Molarity = 0.650 moles / 1.35 L
Molarity = 0.481 M
It is known as learned behavior. when you observe an animal, you learn from them. hope it helps:)
Answer:
Option C. 4.03 g
Explanation:
Firstly we analyse data.
12 % by mass, is a sort of concentration. It indicates that in 100 g of SOLUTION, we have 12 g of SOLUTE.
Density is the data that indicates grams of solution in volume of solution.
We need to determine, the volume of solution for the concentration
Density = mass / volume
1.05 g/mL = 100 g / volume
Volume = 100 g / 1.05 g/mL → 95.24 mL
Therefore our 12 g of solute are contained in 95.24 mL
Let's finish this by a rule of three.
95.24 mL contain 12 g of sucrose
Our sample of 32 mL may contain ( 32 . 12) / 95.24 = 4.03 g
gold density = 19.3 g/cm³
mass = 16.5 kg = 16.5 x 10³ g
volume = 954 ml
gold density based on the experiments:
ρ = 16.5 x 10³ g / 954 ml(cm³) = 17.296 g/cm³ ( not of pure gold)
1×10^-4 = 0,0001M
pH = -log[H+]
pH = -log0,0001
pH = 4