Answer:
Explanation:
a. CuO+ 2HCl⇒CuCl2+ H2O
b.
=
= 0,05 (mol)
⇒
=
=0,05 mol
⇒
= 0,05×135=6,75 (g)
c.
=2×
=0,1 (mol)
⇒
= 0,1×36,5= 3,65 (g)
⇒
=
×100=36,5 (g)
⇒ Nồng độ phần trăm dd sau phản ứng= Nồng độ % dd CuCl2=
×100=
×100≈ 16,67%
Answer:
The volume will be 82.67 L
Explanation:
Charles's Law is the relationship between the volume and temperature of a certain amount of ideal gas. In this way, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the ratio between volume and temperature will always have the same value:

Having a certain volume of gas V1 that is at a temperature T1 at the beginning of the experiment, by varying the volume of gas to a new value V2, then the temperature will change to T2, and it will be true:

In this case, you know:
- V1= 40 L
- T1= 90 °C
- V2= ?
- T2= 186 °C
Replacing:

Solving:

V2= 82.67 L
<u><em>The volume will be 82.67 L</em></u>
Electric current produces a magnetic field. This magnetic field can be visualized as a pattern of circular field lines surrounding a wire. One way to explore the direction of a magnetic field is with a compass, as shown by a long straight current-carrying wire in.