Answer:
0.193 L
Explanation:
Another way of writing the question would be: What volume of a 7.5 M Sodium Bromide solution would contain 1.45 moles.
To answer that we can use the <em>definition of molarity</em>:
- Molarity = moles / liters
We <u>input the given data</u>:
- 7.5 M = 1.45 moles / liters
And <u>calculate how many liters are required</u>:
- 1.45 mol / 7.5 M = 0.193 L
Answer:
0.3mL
Explanation:
Mass = 0.30mg
Concentration = 1.0 mg/mL
Volume = x
The relationship between the three parameters is given as;
Concentration = Mass / Volume
Making Volume our subject of interest we have;
Volume = Mass / Concentration
Substituting the values we have;
Volume = 0.30 mg / 1 mg/mL = 0.3mL
The answer to question is B have a nice day
Thank you for posting your question. Below is the answer. I hope it helps.
<span>P4(s) + 10 Cl2(g) → 4 PCl5(g)
P4 + 5 O2 → 2 P2O5
(186 g P4) / (123.8950 g/mol) x (2/1) x (141.9447 g/mol) = 426 g P2O5 </span>
The answer would be the same, 950 grams of oil.
