Answer:
for more details are in the pic
Maybe because meiosis have more chromosomes than mitosis but don't put that on there but that maybe it it because in class we have not went over that yet
1 send astronauts to space and saw the earth round
2 saying something to do
3 science that been solved
4 science had have no evidence
5 have proved and stories
Answer:
In NMR spectroscopy, the strong magnetic field establishes an energy gap between the alpha and beta spin states, which enables the nuclei to electromagnetic rf radiation, thereby causing a nucleus to be excited from the +1/2 spin state to the -1/2 spin state.
Explanation:
The answer is 0.2 M.
Molarity is a measure of the concentration of solute in a solution
c = n ÷V<span>
c - concentration of solute,
n - number of moles of solute
V - volume of solution
</span>
We know:
V = 50.00 mL = 0.05 L
c = ?
n = ?
Let's calculate concentration:
c = m/(V * Mr)
The molar mass of <span>(NH4)2SO4 is the sum of atomic masses (Ar) of its elements):
Mr (</span><span>(NH4)2SO4) = 2Ar(N) + 8 Ar(H) + Ar(S) + 4Ar(O)
= 2 * 14 + 8 * 1 + 32 + 4 * 16 =
= 28 + 8 + 32 + 64 =
= 132 g/mol
c = 26.42 g/ (0.05 L * 132g /mol) =26.42 g/ 6.6 L*g/mol = 4 mol/L = 4 M
Now, calculate molarity:
</span>c = n ÷V
n = c * V
n = 4 mol/L * 0.05 L
n = 0.2 mol
