Explanation:
When diluting a fruit juice, it is important to know the final volume so as not to over dilute the solution.
- The fruit juice can become too diluted if we don't know the final volume .
- Concentration refers to the amount of solute dissolved in a solvent.
- To achieve a desired amount of concentration during dilution, the volume of the target must be known.
- This will serve as a guide of the amount of solvent to add in order to take the solution to the desired volume.
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35.453 (chlorine) + 10.811 (boron) = 46.264
Answer:
cinnamic acid - 150 mg
cis-stilbene - 100 μL
trans- stilbene - 100 mg
pyridinium tribromide - 200-385 mg
For this data:
moles of cinnamic acid = 0.150 g/148.16 g/mol = 0.001 mols
Theoretical mass of dibromoproduct formed = 0.001 mol x 307.97 g/mol = 0.312 g
cis-stilbene (100 ul = 0.1 ml)
moles of cis-stilbene = 0.1 ml x 1.01 g/mol/180.25 g/mol = 0.00056 mols
Theoretical mass of dibromoproduct formed = 0.00056 mol x 340.05 g/mol = 0.19 g
trans-stilbene
moles of tran-stilbene = 0.1 g/180.25 g/mol = 0.00055 mols
Theoretical mass of dibromoproduct formed = 0.00055 mol x 340.05 g/mol = 0.19 g
Explanation:
Answer:
How to differentiate between physical and chemical change?
Physical and Chemical Changes to Matter
Physical changes only change the appearance of a substance, not its chemical composition.
Chemical changes cause a substance to change into an entire substance with a new chemical formula.
Chemical changes are also known as chemical reactions.