Answer:
electronic configuration: 1s^2,2s^2,2p^3
name: nitrogen
unpaired electron: 3
Answer is 128.892 g.
moles (mol) = mass (g) / molar mass (g/mol)
According to the given data,
moles = 4.60 mol
mass = ?
molar mass = 28.02 g/mol
By substitution,
4.60 mol = mass / (28.02 g/mol)
mass = 4.60 mol x 28.02 g/mol
mass = 128.892 g
Hence, mass of 4.60 mol of N₂ is 128.892 g.
Answer:
a vector with speed and strenght
Explanation:
Answer:
pH= 1.70
Explanation:
I 4.988 0 0
C -x +x +x
E 4.988 -x x x
8.0 x 10^-5 = X^2/ 4.988 - x
(since the X value is so small, round 4.988-x to 4.988 because X is close to zero)
8.0 x 10^-5 = x^2/4.988
x4.988 x4.988
4.0 x 10^-4 = x^2
x = .0199
pH=-log[.0199] = 1.70
Answer:
The four major methods of separation and purification techniques in the laboratory are as follows,
1. Chromatography
2. Recrystallization,
3. Distillation, and
4. Extraction
Spectroscopy however is not a common separation and purification method
Explanation:
Mass spectrometer separates ions in respect to the ratio of their mass to the their charge and are then detected based on their relative abundance this technique is used in the analysis of biomolecules