Answer:
0.86 g
Explanation:
Given:
Pressure = 725 torr
The conversion of P(torr) to P(atm) is shown below:
So,
Pressure = 725 / 760 atm = 0.9539 atm
Volume = 225 mL = 0.225 L (1 mL = 0.001 L)
Temperature = 25 °C
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
So,
T₁ = (25 + 273.15) K = 298.15 K
Using ideal gas equation as:
PV=nRT
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
Applying the equation as:
0.9539 atm × 0.255 L = n × 0.0821 L.atm/K.mol × 298.15 K
⇒n = 0.0099 moles
From the reaction,
1 mole of chlorine is formed from 1 mole of
Thus, moles of = 0.0099 moles
Molar mass of = 86.9368 g/mol
Mass = Moles*Molar mass = 0.0099 moles * 86.9368 g/mol = 0.86 g
Answer:
Luiquid
Explanation:
The atoms in a liquid state of matter have a definite volume, eventhough they acquire the shape of the container that contains them, the volume will always be the same, while in a solid the shape and volume will remain constant, on the other hand for a gas, the substance will fill the container where it is, having different volumes.
Answer: This is evidence that the solution a mixture.
Explanation:
Mixture :
- It is defined as a substance which is made by mixing two or more different materials.
- No chemical reaction occurs between the mixed materials.
- Usually mixture can be separated into its original components.
A solution in a dish contains 4.0 grams of salt dissolved in 100 grams of water. If 50 grams of the water evaporate is a mixture because it is made up two substances salt and water which can be easily separated out by the means of evaporation.
It's a mixture becuase it is a substance made by mixing other substances togrther such as flour, sugar, and eggs.