Answer:
lWhich compound can inadvertently be created through the distillation process and can be fatal if consumed?
Methanol
Answer:
621.41 grams
Explanation:
First of all, to find the mass. You have to use the molar mass of AlBr3 to convert from moles to mass.
Second of all, find the molar mass of AlBr3.
Al = 27.0 amu
Br = 79.9 amu
They are 3 bromine atoms and 1 aluminum atom.
So you do this
27.0 + 79.9(3) = 266.7
The molar mass is 266.7 g/mol
Third of all, use dimensional analysis to show your work.
2.33 moles of AlBr3 * 266.7 g/mol / 1 mol
Moles cancel out.
2.33 x 266.7 = 621.411
Your teacher though said to round digits after the decimal point instead of using sig figs.
621.411 rounds to 621.41
So the final answer is 621.41 grams(don't forger the units).
The substance formula is just AlBr3.
That's all.
Hope it helped!
The answer is The student forgot to add phenolphthalein.
Phenolphthalein<span> is a </span>chemical compound<span> with the </span>formula C20H14O4<span> and is often written as "</span>HIn" or "phph<span>" in shorthand notation. Phenolphthalein is often used as an indicator in </span>acid–base titrations<span>. For this application, it turns colorless in </span>acidic<span> solutions and pink in </span>basic <span>solutions.</span>
Answer:
P (H₂) = 741 torr
Explanation:
Let's begin by listing out the given parameters:
Temperature (water) = 298 K, volume = 45.6 mL,
atmospheric pressure, P (total) = 765 torr, vapor pressure of water, P (H₂O) = 24 torr
To get the pressure of inside the tube, P (H₂), we apply Dalton's Law of Partial Pressure and we have:
P (total) = P (H₂) + P (H₂O)
P (total) = 765 torr, P (H₂O) = 24 torr
P (H₂) = P (total) - P (H₂O) = 765 - 24
P (H₂) = 741 torr
It therefore becomes clear that the pressure of H₂(g) is 741 torr
Answer:
Mass = 0.000176 gram
Steps:
m = V × ρ
= 20 milliliter × 8.8 gram/cubic meter
= 2.0E-5 cubic meter × 8.8 gram/cubic meter
= 0.000176 gram
Explanation:
