t concentration is produced after 5 mlL of a 10 M stock KCN solution is diluted
ID: 694546 • Letter: T
Question
t concentration is produced after 5 mlL of a 10 M stock KCN solution is diluted 100 mL? Prk 9. What concentration i 10. Aher balancing the equation, write an ionie and nect ionie equation for the reaction. CaCl2+ CuBr CaBn + CuCl 11. After balancing the equation, write an ionic and net ionic equation for the reaction. CaCla + Na2CO3 CaCO3+ NaCl 12. A 50.00-mL sample of an unknown INOs solution requires titration with 8.2 mL of 2 M NaOH to reach the equivalence point. What is the concentration of the unknown HNO3 solution? 13. Identify the acid, base, conjugate acid, and conjugate base in the following reaction.Explanation / Answer
9)
use dilution formula
M1*V1 = M2*V2
1---> is for stock solution
2---> is for diluted solution
Given:
M1 = 10.0 M
V1 = 5.0 mL
V2 = 100.0 mL
use:
M1*V1 = M2*V2
M2 = (M1*V1)/V2
M2 = (10*5)/100
M2 = 0.5 M
Answer: 0.5 M
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