I think it’s tissue I just did it
The answers are the following:
1. 3.01 x 10^23 atoms B
solution: (5.40/10.81)(6.022x10^23)
<span>2. 1.51 x 10^23 atoms S
</span>solution:<span> (.250)(6.022x10^23) </span>
<span>3. 2.31 x 10^22 atoms K
</span>solution:<span> (.0384)(6.022x10^23) </span>
<span>4. 7.872 x 10^19 atoms Pt
</span>solution:<span> (.02550/195.08)(6.022x10^23) </span>
5. 3.06 x 10^11 atoms Au
solution: (1.00x10^-10/196.97)(6.022x10^23)
Here's 2 links that hopefully helps you:
https://science.howstuffworks.com/innovation/scientific-
experiments/scientific-method9.htm
https://ask.metafilter.com/152401/How-does-the-idea-of-the-scientific-method-inform-our-modern-culture-and-life
Answer:
0.01 M
Explanation:
The chemist is performing a serial dilution in order tyo obtain the calibration curve for the instrument.
First we must obtain the concentration of the solution in the 250ml flask from
C1V1 = C2V2
Where;
C1 = concentration of the stock solution
V1 = volume of the stock solution
C2 = concentration of the diluted solution
V2= volume of the diluted solution
2.61 × 10 = C2 × 250
C2 = 2.61 × 10/250
C2 = 0.1 M
Hence for solution in 100ml flask;
0.1 × 10 = C2 × 100
C2 = 0.1 × 10/100
C2 = 0.01 M
