Answer:
c. 32.0 mL
Explanation:
Buret can measure upto one tenth of a mL . That means it can measure upto one decimal point of a mL . Out of given measurement 32.0 mL reads upto one decimal point of mL so this reading seems to be the reading taken of a liquid in a buret.
Molarity
Molarity is a unit used to express the concentration of a substance, and it is defined as the number of moles of solute per decimeter cubed (liter) of solvent.
Answer:
The energy of a photon with a wavelength of 350 nm is 5.7×10−19 J.
Answer:
the correct formula is Na2O
Answer:
Mass = 63.19 g
Explanation:
Given data:
Number of moles = 0.89 mol
Mass of Cl₂ = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of Cl₂ = 71 g/mol
by putting values,
0.89 mol = mass/ 71 g/mol
Mass = 0.89 mol × 71 g/mol
Mass = 63.19 g