Answer:
3.4 × 10^23 molecules
Explanation:
To find the number of molecules present in C6H14, we multiply the number of moles in the compound by Avagadro's number (6.02 × 10^23 atoms).
number of molecules = number of moles (mol) × 6.02 × 10^23?
Number of molecules = 0.565 × 6.02 × 10^23
3.4 × 10^23 molecules
Answer:
47.871 amu
Explanation:
Average atomic mass of an atom is obtained from the sum of the mass of the isotopes multiplicated by its natural abundance.
That means atomic mass of Ti is:
Ti = 45.953*8.00% + 46.952*7.80% + 47.947*73.40% + 48.948*5.50% + 49.945*5.30%
Average atomic mass of Ti:
<h3>47.871 amu</h3>
The question is incomplete, here is the complete question:
In the lab, keith has two solutions that contain alcohol and is mixing them with each other. Solution A is 20 % alcohol and Solution B is 6 % alcohol. He uses 400 milliliters of Solution A. How many milliliters of Solution B does he use, if the resulting mixture is a 12% alcohol solution?
<u>Answer:</u> The volume of solution B used is 533.3 mL
<u>Explanation:</u>
We are given:
Volume percent of alcohol in solution A = 20 %
Volume percent of alcohol in solution B = 6 %
Let the volume of solution B used be 'x' mL
Volume of solution A used in the mixture = 400 mL
Total volume of the mixture = (400 + x) mL
Calculating the volume of solution B used:
Hence, the volume of solution B used is 533.3 mL
<u>Answer:</u>
<em>The molarity of the solution is </em>
<em></em>
<u>Explanation:</u>
The Balanced chemical equation is
Mole ratio of : KCl is 1 : 1
So moles = moles KCl
So Molarity
= 0.000402M or mol/L is the Answer
(Or) is the Answer