Teacher's Aixtre 09 7. Mass of dry filter paper + benzoic acid 1315 8. Mass of recovered benzoic acid 315 2.9128-1D0128 Calculations Percent sand:.&oy 1o0 40.32 inen tel valne Percent benzoic acid: O.101 X100=10.O47 1. Calculate the percent of each component in the mixture. Show your calculations. 3.978 3.978 Percent NaCl: 100 2. Obtain the percent composition of the teacher's mixture. Calculate the percent error in your results. Show your calculations. JyoisSand % error: 40%-40.3al x100= 0.8 7 니0 a0Benzoic acid % error: NaCl % error: Analysis in the class received a sample of the same mixture, each team will not obtain th of reasons (hint: read the

Teacher's Aixtre 09 7. Mass of dry filter paper + benzoic acid 1315 8. Mass of recovered benzoic acid 315 2.9128-1D0128 Calculations Percent sand:.&oy 1o0 40.32 inen tel valne Percent benzoic acid: O.101 X100=10.O47 1. Calculate the percent of each component in the mixture. Show your calculations. 3.978 3.978 Percent NaCl: 100 2. Obtain the percent composition of the teacher's mixture. Calculate the percent error in your results. Show your calculations. JyoisSand % error: 40%-40.3al x100= 0.8 7 니0 a0Benzoic acid % error: NaCl % error: Analysis in the class received a sample of the same mixture, each team will not obtain th of reasons (hint: read the

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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* * 4) 33% D Mon i Safari File Edit View History Bookmarks Window Help A www-awu.aleks.com E My Black. Djada jac Jada Jac. Post Atte. DDayforce A ALEKS- SV Elucian. Borrower. D CLA M MyOpen. Jada v O STOICHIOMETRY Dilution A chemist must dilute 75.7 mL of 2.28 mM aqueous copper(II) fluoride (CuF,) solution until the concentration falls to 1.00 mM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, In liters. Round your answer to 3 significant digits. Explanation Check 2021 McGraw-Hil Education All Rights Reserved. Terms of Use Privacy 1 Accessibility Thank The 2$ 4 7. 8 W R Y U fab A F caps lock K. V. shift control option command MOSISO command option
Gaseous methane (CH4) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). If 9.05 g of water is produced from the reaction of 10.6 g of methane and 60.4 g of oxygen gas, calculate the percent yield of water. Round your answer to 3 significant figures. п% X S ? do
mass of released H2O, molar mass of H2O and Moles of released H2O
1. The molecular formula for potassium hydrogen phthalate (abbreviated KHP) is C3H$O4K. What is the molar mass of KHP? Show all work with no rounding errors and have the final answer accurate to at least two decimal places.
The actual empirical formula of magnesium oxide is mgo. Explain any different between your result and the actual value.
4. A student conducted an experiment by heating BaCl₂ 2H₂O and reported the percent of water as 15.25%. Calculate the percent error (Hint: Use the calculated theoretical value).
2:01 × 1. Calculate the molecular mass, in g/mol, of iron (II) sulfate heptahydrate. : work. Adipic acid contains: 49.32% C, 43.84% O, and 6.85% H by mass. What is the empirical formula for adipic acid? Hint: Percent to mass, Mass to mole, Divide by small, Multiple 'til whole Empirical Formula for Adipic acid = 3. What is the percentage composition of O in KCIO3? Hint: % Composition = (# atoms) x (Molar mass of compound) x 100% Molar Mass of Molecule 2.
4.35 L He/1 x 1 mole He/22.4 L He=0.19 moles He. Explain why the final answer of 0.19 moles makes more sense than 0.91 moles using the example answer attached to help.
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What did you see when you peeked inside your crucible
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