Answer:
The number of moles of benzaldehyde = 0.0253 moles
Explanation:
The molecular formula of benzaldehyde is C₇H₆O
Its molecular mass is calculated from the atomic masses of the constituent atoms.
C = 12.0 g: H = 1.0 g; O = 16.0 g
Molecular mass = ( 12 * 7) + (1 * 6) + (16 * 1) = 106.0 g/mol
Number of moles of substance = mass of substance/ molar mass of the substance
mass of benzaldehyde = 2.68; molar mass = 106.0 g/mol
Number of moles of benzaldehyde = 2.68 g/ 106 g/mol = 0.0253 moles
Therefore, the number of moles of benzaldehyde = 0.0253 moles
Answer:
The answer is C
Explanation:
A lipid bilayer makes up the cell membrane because it is more like a chain link fence that is flexible allowing cell movement.
Answer:
356 g is equal to 0.356 kg.
Explanation:
When converting grams to kilograms, just divide the mass value by 100.
Hope this helps!
Steam is made from boiling things and water vapor is from boiling water.
A pond of cement is more dense