Determining Molarity of an HCI Solution What is the molarity of HCl in a solutio
ID: 542067 • Letter: D
Question
Determining Molarity of an HCI Solution What is the molarity of HCl in a solution if it is prepared when 1.65 mL of 1.260 M HCl is mixed with 8.35 mL of water? Submit Answer Tries 0/99 Threaded View Chronological View Sorting/Filtering options Export? NEW wrong formula? Brittney Page (bnp93:nau) Reply (Mon Oct 16 03:42:07 pm 2017 (MST)) Preferences on what is marked as NEW Mark NEW posts no longer new i have used miv1=m2v2 and its not coming out right, what is the correct formula for this? NEW Re: wrong formula? Layne Elder (Ime76:nau) Reply (Mon Oct 16 05:03:45 pm 2017 (MST)) So you need to add your two separate volumes together, substitute this product for V2 Then use the miv1-m2v2 formula to get the correct molarity Current discussion settings: 1. Display - All posts 2. Not new - Once marked not NEW Change? Preferences on what is marked as NEW Mark NEW posts no longer new Threaded View Chronological View Sorting/Filtering options Export?Explanation / Answer
use dilution formula
M1*V1 = M2*V2
1---> is for stock solution
2---> is for diluted solution
Given
M1 = 1.26 M
V1 = 1.65 mL
V2 = 1.65 mL + 8.35 mL = 10.0 mL
Use:
M1*V1 = M2*V2
M2 = (M1*V1)/V2
M2 = (1.26*1.65)/10
M2 = 0.208 M
Answer: 0.208 M
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