Answer:
Use either a vinegar, Borax, or bleach solution in a spray bottle to tackle the mold. Simply spray the solution on showers, baths, basins, tiles, grout, or caulking. Then use either a cleaning cloth or a toothbrush to remove the slime
Answer:
Question
A female spinach plant with flat (Ff) leaves is crossed with (pollination and fertilization occur) a male spinach plant with crinkly (ff) leaves. Explain wha
Explanation:
Answer:
Option A 0.5424 M
Explanation:
To do this, let's write the reaction again and see the mole ratio:
14H⁺ + 6Fe²⁺ + Cr₂O₇⁻ ---------> 2Cr³⁺ + 6Fe³⁺ + 7H₂O
According to this reaction, we have a mole ratio between the dicromate and iron of 1:6. In other words, 6 moles of dicromate reacts with only 1 mole of iron, therefore we can use the following expression:
nFe = 6 * nCr₂O₇
This is a REDOX reaction, where Iron is being oxidized while cromium is being reduced. Now, we have the concentrations and volume, let's express the moles in function of concentration and volume:
M₁V₁ = 6M₂V₂
Replacing the given data above and solving for concentration of iron (M₁)
M₁ = 6 * 45.20 * 0.1 / 50
M₁ = 0.5424 M
This is the concentration of the iron solution
