6,50g of ZnSO4 is 0,04 moles
Mass
of ZnSO4 :
m=6,50g
<span>Molar
mass of ZnSO<span>4 : </span></span>
M=M(Zn)+M(S)+4*M(O)
M=65,38
g/mol+32,06 g/mol+4*15,99 g/mol
M=161,40 g/mol
Molarity of ZnSO4 :
n=m/M
n=6,50g/161,40g/mol
n=0,04 mol
<h3>Answer:</h3>
The pressure will decrease by half.
<h3>Explanation:</h3>
Data Given:
P₁ = 101.3 kPa
V₁ = X
V₂ = 2X
P₂ = ??
Let us suppose the initial volume is 5 L and the final volume when doubled is 10 L. Then According to Boyle's Law, " The Volume of a given mass of gas at constant temperature is inversely proportional to the applied Pressure". Mathematically the initial and final states of gas are given as,
P₁ V₁ = P₂ V₂ ----------- (1)
Solving equation 1 for P₂,
P₂ = P₁ V₁ ÷ V₂
Putting values,
P₂ = (101.3 kPa × 5 L) ÷ 10 L
P₂ = 50.65 kPa
<h3>Result:
</h3>
As the volume is doubled, the pressure is decreased from 101.3 kPa to 50.65 kPa or it has decreased by half.
The answer is TRUE.
Energy is an extensive property, which means that it is in proportion to the amount of matter: more mass, more energy.
You can measure, for example, the internal energy per mol or per gram of several compounds or elements. then if you want to know the total internal energy of the system you have to multiply by the number of moles or grams, depending on the unit of the internal energy that you use.
Answer:
The universe is the entire body of everything that exists.
Explanation:
Sorry if it's wrong.
Answer:
1.diamond, graphite, and fullerenes.
2.a material produced by the incomplete combustion of heavy petroleum/ink for printing newspapers, as ink-jet toner, and coloring leather in shoes
3.Diamond is extremely hard while graphite is pretty soft, diamond has a greater density than graphite, and diamond is semi transparent while graphite is dark and foggy
4.Graphite can conduct electricity because of the free electrons in its structure. However, in diamond, all 4 outer electrons on each carbon atom are used in covalent bonding, so there are no delocalised(free) electrons.
Explanation: