Answer:
The density of Lithium β is 0.5798 g/cm³
Explanation:
For a face centered cubic (FCC) structure, there are total number of 4 atoms in the unit cell.
we need to calculate the mass of these atoms because density is mass per unit volume.
Atomic mass of Lithium is 6.94 g/mol
Then we calculate the mass of four atoms;
⇒next, we estimate the volume of the unit cell in cubic centimeter
given the edge length or lattice constant a = 0.43nm
a = 0.43nm = 0.43 X 10⁻⁹ m = 0.43 X 10⁻⁹ X 10² cm = 4.3 X 10⁻⁸cm
Volume of the unit cell = a³ = (4.3 X 10⁻⁸cm)³ = 7.9507 X 10⁻²³ cm³
⇒Finally, we calculate the density of Lithium β
Density = mass/volume
Density = (4.6097 X 10⁻²³ g)/(7.9507 X 10⁻²³ cm³)
Density = 0.5798 g/cm³
1 mol Au ---------------- 196.9665 g
0.150 mol Au ----------- ?
0.150 x 196.9665 / 1
= 29.54 g
hope this helps!
Answer:
The correct answer is d)temperature. See the answer below, please.
Explanation:
Colligative properties are those physical properties that depend on the number of molecules present in a solution, regardless of the nature of the solution.
There are 4 colligative properties: osmotic pressure, decrease in vapor pressure, increase in boiling point and decrease in freezing point.
Answer:
The expended structural formula is shown in attached image.
Explanation:
The given compound is 5 - Methyl - 1 - hexene.
Its molecular formula is C₇H₁₄.
Its molecular weight is 98.19 g/mol.
It is colorless liquid.
Its density is less is compared to water
It is insoluble in water.
Its other names are 5-Methylhex-1-ene , 1-Hexene, 5-methyl- Isoheptene.
Answer:
D. protons that is the answer