Answer:
0.0125mol
Explanation:
Molarity (M) = number of moles (n) ÷ volume (V)
n = Molarity × Volume
According to this question, a 0.05M solution contains 250 mL of NaOH. The volume in litres is as follows:
1000mL = 1L
250mL = 250/1000
= 0.250L
n = 0.05 × 0.250
n = 0.0125
The number of moles of NaOH is 0.0125mol.
Main sequence starts maybe
The correct answer for this question is
20.2 g silver placed in 21.6 mL of water and 12.0 g silver placed in 21.6 mL of water.
15.2 g copper placed in 21.6 mL of water and 50.0 g copper placed in 23.4 mL of water.
11.2 g gold placed in 21.6 mL of water and 14.9 g gold placed in 23.4 mL of water.
To know more about Density, click here:
brainly.com/question/6107689
#SPJ4
Oxygen has 6 valence electrons, so B
