PRACTICE PROBLEM:
A 34.53 mL sample of H2SO4 reacts with 27.86 mL of 0.08964 M NaOH solution. Calculate the molarity of the H2SO4 solution.
H2SO4 + 2NaOH = Na2SO4 + 2H2O
📗 FREE CHEMISTRY SURVIVAL GUIDE
melissa.help/freechemguide
💯 HERE'S HOW TO PASS ORGANIC CHEMISTRY 🎉
chemmunity.info/youtube
👉 MORE CHEMISTRY RESOURCES I CREATED 👈
melissamaribel.com/
🎓 CHECKOUT MY COMPLETE CHEMISTRY GUIDES:
📕 Thermochemistry Guide
melissa.help/thermonotes
📗 Acids and Bases Guide
melissa.help/acidbase1notes
📘 Naming Compounds and Acids Guide
melissa.help/namingnotes
📙 Dimensional Analysis, Significant Figures, and Density Guide
melissa.help/sigfignotes
📕 Gas Laws Guide
melissa.help/gaslawsnotes
📗 Stoichiometry Guide
melissa.help/stoichnotes
📘 Redox Reactions Guide
melissa.help/redoxnotes
📙 Molarity Guide
melissa.help/molaritynotes
📕 Limiting Reactants Guide
melissa.help/limreactnotes
📗 Lewis Structures Guide
melissa.help/lewisnotes
📘 Kinetics Guide
melissa.help/kineticsnotes
📙 Titrations Guide
melissa.help/titrations
📕 Matter, Atomic Structure, Empirical and Molecular Formulas Guide
melissa.help/matterguide
🙌 This was my go-to homework help when I was in school. Chegg Study is one of my favorites.
melissa.help/cheggstudy
📚 I made the mistake of buying all of my textbooks, I wish I had the option of renting them. Thankfully you do, with Chegg Textbook Rentals.
melissa.help/cheggbooks
💁♀️ HI I'M MELISSA MARIBEL
I help students pass Chemistry and Organic Chemistry. I used to struggle with this subject, so when I finally graduated with a bachelor's degree in Chemistry, I became a tutor so that you wouldn't have to struggle like I did. I know that with the right help, YOU CAN LEARN ANYTHING!
DISCLAIMER: Some links in the description are affiliate links, which means that if you buy from those links, I’ll receive a small commission. This helps support the channel and allows me to continue making videos like this. Thanks for the support!
STEP BY STEP ANSWER:
Given:
34.53 mL H2SO4
27.86 mL NaOH
0.08964 M NaOH
Find:
M H2SO4
Remember 0.08964 M NaOH means 0.08964 mol NaOH/ 1 L
Step 1: Find mol of H2SO4
Plan: mL NaOH to L NaOH to mol NaOH to mol H2SO4
Metric system molarity NaOH mol to mol ratio
Setup:
27.86 mL NaOH x ( 10^-3 L NaOH/ 1 mL NaOH) x (0.08964 mol NaOH/ 1 L NaOH) x ( 1 mol H2SO4/2 mol NaOH)
= 0.001249 mol H2SO4
Step 2: Convert mL to L of H2SO4
34.53 mL H2SO4 x ( 10^-3 L H2SO4/ 1 mL H2SO4)
= 0.03453 L H2SO4
Step 3: Divide mol/L
M= 0.001249 mol H2SO4/0.03453 L H2SO4
Answer= 0.03617 M H2SO4
9 мар 2018
