Answer is: <span>the pressure of the gas is 9,2 atm.
</span>p₁ = 4,0 atm.
T₁ = 300 K.
V₁ = 5,5 L.
p₂ = ?
T₂ = 250 K.
V₂ = 2,0 L.
Use combined gas law - the volume of amount of gas is proportional to the ratio of its Kelvin temperature and its pressure.<span>
</span>p₁V₁/T₁ = p₂V₂/T₂.
4 atm · 5,5 L ÷ 300 K = p₂ · 2,0 L ÷ 250 K.
0,0733 = 0,008p₂.
p₂ = 9,2 atm.
A substance which allows energy (heat or electricity) to pass through it is known as a conductor.
These substances usually have free electrons which allows the charges to flow easily in the substance, thus, transferring energy.
Other substances which do not have free electrons and do not allow energy to pass through them are known as insulators.
Answer:
0 587 mL
Explanation:
First we convert 180 grams of HCl into moles, using its molar mass:
- 180 g ÷ 36.46 g/mol = 4.94 mol HCl
Now we can <u>use the number of moles and the given concentration to calculate the required volume</u>, applying the <em>definition of molarity</em>:
- Molarity = moles / liters
- Liters = Moles / molarity
- 4.94 mol / 8.40 M = 0.588 L
Finally we <u>convert liters into milliliters</u>:
The closest answer is option C, 587 mL.
Hey there! :
1) <span>
Solid Solutions </span>
Solid solutions are formed only by solutes and solid solvents. In
everyday life, the main examples of this type of solution are metallic alloys.
2) Liquid Solutions
Liquid solutions have liquid solvent, usually water, and solutes can be solid, liquid or gaseous.
3) Gaseous solutions
<span>This kind of solution is formed by the only mixture of gases. Air is an
example, as its approximate composition is 78% nitrogen gas, 21% oxygen gas and
1% of other gases.</span>
