1 tell the person in charge or the teacher
2 make sure u did not get cut
3 get the large pieces and put them into glass waist container
4 get broom or brush weep area and get small pieces depose in same place
5 take a wet wipe and cover area to pick up anything that as missed!
I think it could be a or d
Answer:
6.69 moles
Explanation:
Data obtained from the question include:
Volume = 2230mL
Molarity of NaOH = 3 M
First, we'll convert 2230mL to L. This is illustrated below:
1000mL = 1L
2230mL = 2230/1000 = 2.23L
Now, we can obtain the number of mole of NaOH in the solution as follow:
Molarity = mole /Volume
Mole = Molarity x Volume
Mole of NaOH = 3 x 2.23
Mole of NaOH = 6.69 moles
Therefore, the total number of mole of the solute (NaOH) in the solution is 6.69 moles
Answer:
179.4 g of oyxgen will be produced.
Option 2.
Be careful because the units says L instead of g
Explanation:
Decomposition reaction:
2KClO₃ → 2KCl + 3O₂
2 moles of chlorate can decompose to 2 moles of chloride and 3 moles of oxygen.
We convert the mass to moles, and then we make the rule of three:
458 g / 122.55 g/mol =3.74 moles of chlorate
2 moles of chlorate can produce 3 moles of oxygen
Then, 3.74 moles of chlorate may produce (3.74 .3) / 2 = 5.60 moles of O₂
We convert the moles to mass → 5.60 mol . 32 g / 1mol = 179.4 g