A chemist dissolved 5.384 g of CH3COOH in 250.0 mL o constant for acetic acid is 1.8 x 105 a. Determine the initial concentration of acetic acid. b. Write out the dissociation equation for acetic acid с. Determine the pH of the solution. d. 4.3 x 103 mol of CH3COO' was added to the acetic the solution does not change. Calculate the initial

Part A If 2.0 x 10-4 moles of S20 in 50 mL solution is consumed in 3 minutes and 17 seconds, what is the rate of consumption of S20 ? Express the rate in mol per liter-second to two significant digits. M 2.128 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide Feedback

$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S deles

Help 100% 4A To Public Health Ch x * HSC 258 - Major Projec X MindTap - Cengage Lea X C The Illustration To TH d%=55750828934189288909969212&elSBN=9781305657571&id=D1061392007&nbld=21... * Q Search th References Use the References to access important values if needed for this question. For the following reaction, 24.7 grams of sulfur dioxide are allowed to react with 9.95 grams of oxygen gas . sulfur dioxide(g) + oxygen(g) → sulfur trioxide(g) What is the maximum mass of sulfur trioxide that can be formed? grams What is the FORMULA for the limiting reagent? grams What mass of the excess reagent remains after the reaction is complete? Submit Answer

Please show how you solved each. I need to see and understand the calculations. I am so frustrated.

Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is completed before submitting your answer. ARE significant ARE significant are NOT significant are ambiguous 1. Zeros at the end of a number with a decimal point 2. Zeros in the middle of two other numbers 3. Zeros at the end of a number with no decimal point 4. Zeros at the beginning of a number Reset Help

Please I need help solving number 2

Try Again Your answer is incorrect. Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get a magnified view. Be sure you check all the boxes on the right-hand side that are correct for this substance. Note for advanced students: in some sketches the distance between particles has been exaggerated to make it easier to see each individual particle. normal substance 1000X 10,000,000X classification (check all that apply) gas liquid solid element compound mixture solution pure substance homogeneous mixture Oheterogeneous mixture X Ś

Discuss the language demands included in the lesson on mixing substances in a 5th-grade classroom by Identifying key vocabulary terms students must know in order to master the learning objectives for the lesson based on the below standard and learning objective. Standard Conduct an investigation to determine whether the mixing of two or more substances results in new substances. Learning Objective Given a variety of substances and safety equipment in a classroom setting, students will be able to conduct an experiment to mix two or more substances and observe the results. They will be able to correctly identify whether a new substance has been formed as a result of the mixing, based on observable changes such as color change, formation of a precipitate, or change in temperature, with at least 80% accuracy.

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