Answer:
0.25
Explanation:
volume= number of moles over concentration
hence v=1.5/6
is it a word problem beacuse i cant see the image. Im really good a chem but if you can write the question in the commets il answer it in the comments
Explanation:
Answer is no
The chemical reaction between iron and oxygen in the presence of moisture or water produces a new substance, which is the rust (iron oxide). In this case, it shows a chemical property.
Answer:
The Henry's law constant for argon is
Explanation:
Henry's Law indicates that the solubility of a gas in a liquid at a certain temperature is proportional to the partial pressure of the gas on the liquid.
C = k*P
where C is the solubility, P the partial pressure and k is the Henry constant.
So, being the concentration
where ngas is the number of moles of gas and V is the volume of the solution, you must calculate the number of moles ngas. This is determined by the Ideal Gas Law: P*V=n*R*T where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. So
In this case:
- P=PAr= 1 atm
- V=VAr= 5.16*10⁻² L
- R=0.082
- T=25 °C=298 °K
Then:
Solving:
n= 2.11 *10⁻³ moles
So:
Using Henry's Law and being C=CAr and P
=PAr:
2.11*10⁻³ M= k* 1 atm
Solving:
You get:
<u><em>The Henry's law constant for argon is </em></u><u><em></em></u>
Answer:
The answer to your question is: 10.67 g/ml
Explanation:
graduated cylinder mass empty= 50 g
+ 30 ml of water = 120 g
+ a rock the level rises 75 ml total mass = 250 gr
density of metal = ?
Formula
density = mass / volume
Process
mass of water = 120 - 50 = 70 g
volume of rock = 75 ml
mass of the rock = 250 - 50 - 120 = 80 g
density of rock = 80 / 75 = 10.67 g/ml