Answer: The volume for 0.850 mol of from a solution is 1700 mL.
The volume of 30.0 g of LiOH from a 2.70 M LiOH solution is 464 mL.
Explanation:
Molarity is the number of moles of solute present in a liter of solution.
- As given moles of are 0.850 mol and molarity of solution is 0.5 M. Hence, its volume is calculated as follows.
Therefore, the volume for 0.850 mol of from a solution is 1700 mL.
- As given mass of LiOH are 30.0 g from a 2.70 M LiOH (molar mass = 23.95 g/mol) solution. Hence, its number of moles are calculated as follows.
So, volume for LiOH solution is calculated as follows.
Therefore, volume of 30.0 g of LiOH from a 2.70 M LiOH solution is 464 mL.
AB₂(s) ⇄ A²⁺(aq) + 2B⁻(aq)
Ksp=[A²⁺][B⁻]²
a=1.10 g/L
M=169 g/mol
c=a/M
[A²⁺]=c=a/M
[B⁻]=2c=2a/M
Ksp=(a/M)(2a/M)²=4(a/M)³
Ksp=4*(1.10/169)³=1.103×10⁻⁶
Answer:
33
Explanation:
The atomic number of an element configuration 2,8, 8,2,13 is 33.
The electron configuration is defined as the arrangement of electrons in atomic or molecular orbitals of an atom. The sum of electrons in different orbitals shown in the electron configuration represents the atomic number of the atom.
So, atomic number of the element configuration 2,8, 8,2,13 is 33.
Answer:
Explanation:
1. Atomic mass of K
To get the atomic mass of K, you calculate the weighted average of the isotopic masses.
That is, you multiply the atomic mass of each isotope by a number representing its relative importance (e.g., its percent of the total).
Set up a table for easy calculation:
2. Formula mass of KF
Answer:
yes. because look at the equation it will have an ionic bond
Explanation: