By pipet, 11.00 mL of a 0.823 MM stock solution of potassium permanganate (KMnO4) was transferred to a 50.00-mL volumetric flask and diluted to the calibration mark. Determine the molarity of the resulting solution. A stock solution of potassium permanganate (KMnO4) was prepared by dissolving 13.0g KMnO4 with DI H2O in a 100.00-mL volumetric flask and diluting to the calibration mark. Determine the molarity of the solution Molarity= O.822 M
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Ответ:
1) 0.18106 M is the molarity of the resulting solution.
2) 0.823 Molar is the molarity of the solution.
Explanation:
1) Volume of stock solution =![V_1=11.00 mL](/tpl/images/0554/4966/614d3.png)
Concentration of stock solution =![M_1=0.823 M](/tpl/images/0554/4966/bce6a.png)
Volume of stock solution after dilution =![V_2=50.00 mL](/tpl/images/0554/4966/e082b.png)
Concentration of stock solution after dilution =![M_2=?](/tpl/images/0554/4966/5e386.png)
0.18106 M is the molarity of the resulting solution.
2)
Molarity of the solution is the moles of compound in 1 Liter solutions.
Mass of potassium permanganate = 13.0 g
Molar mass of potassium permangante = 158 g/mol
Volume of the solution = 100.00 mL = 0.100 L ( 1 mL=0.001 L)
0.823 Molar is the molarity of the solution.
Ответ:
2. paid tribute to the consumerist agenda
3. dismantlement of the family unit
4. curbed the creativity and critical thinking that less stimulating and more deep tools like books have
5. made entire generations prone to belief and fear and error and total investment of their wellbeing and their sources of information vested on the perspective and discretion of the media
6. also connected the world and made it smaller
7. boosted the image of media and show business
8. promoted integration and diversity
etc