<h2>Answer:</h2>
The volume of water measured using the graduated cylinder is <em>not exactly identical </em> identical to the volume calculated.
<h3>Explanation:</h3>
Calculated volume is theoretical value calculated from the density and mass of water.
But volume measured in cylinder can contain the personal error of individual.
Because in graduated cylinder volume is measured in a specific way that is:
- Place the graduated cylinder on a flat surface and view the height of the liquid in the cylinder with your eyes directly level with the liquid.
- The liquid will tend to curve downward.
- This curve is called the meniscus.
- Always read the measurement at the bottom of the meniscus.
Answer: 50.9g of Fructose
Explanation:
No of moles = Mass (g) / Molar Mass (g/mol)
Moles = 0.283
Molar Mass of Fructose (C6H12O6) = 12 x 6 + 1 x 12 + 16 x 6 = 180g/mol
Mass = ?
Make 'Mass' the subject of formular, we will have;
Mass = Molar Mass x No of moles
= 180g/mol x 0.283
= 50.9g of Fructose
Total mass of the crystal:
23 x 2 + 32 + 16 x 4 + 10 x 18
= 322
Mass of water:
10 x 18
= 180
Percentage of water = 180 / 322 x 100 = 55.9%
