Answer:
Explanation:
Hello,
In this case, by using the ideal gas equation:
We can compute the mass of neon gas at the given conditions by firstly computing the moles and also considering the temperature in kelvins (298K):
Finally, by using the atomic mass of neon gas (20.18g/mol) we compute the required mass to fill the 5.00-L container:
Best regards.
The chemical reaction
is not an oxidation-reduction reaction because there is no trasfer of electrons. The following are the oxidation numbers of the species involved:
Reactants side:
Cu = +2
Sulfate ion = -2
Cl2 = -2
Ba = +2
Products side:
Cu = +2
Sulpahte Ion = -2
Cl2 = -2
Ba = +2
Answer:
d = 7.88 g/ cm³
Explanation:
Given data:
Radius of hydrogen atom = 37 pm
Mass of hydrogen atom = 1.67 × 10⁻²⁴ g
Density of hydrogen atom = ?
Solution:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Volume:
(4/3) 3.14 × r³
1.33×3.14 × (37pm)³
4.19×50653 pm³
211537.1 pm³
211537.1/9.223 ×10¹⁸
2.12 ×10⁻²⁵ cm³
Now we will determine the density.
d = m/v
d = 1.67 × 10⁻²⁴ g / 2.12 ×10⁻²⁵ cm³
d = 7.88 g/ cm³
Answer:
A
Explanation:
<em>Density:</em> water>ice>methanol
Ice is lighter than methanol hence it is able to float on it. However, ice is denser than water hence it sinks.
