For the reaction shown below, 45 mg of benzaldehyde, 25 mg of acetone, and excess sodium hydroxide are used to obtain 30.6 mg of dibenzalacetone. What is the percent yield of dibenzalacetone? NaOH H.

What purpose does the Artist wheel serve in chemistry?|

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10 11 12 13 14 15 16 17 18 19 20 Calculate the solubility of BaCro, in water at 25 °C. You'll find K data in the ALEKS Data tab. sp Round your answer to 2 significant digits. Continue MacBook Air

Q Search for 20 minutes. Then return, put it down, and weigh yourself immediately three times. Since reporting your weight is a little too personal, I want you to tell me the variation between each reading (called a first derivative measurement). You should see the first weight is somewhat higher than the rest; often as much as 2-3 pounds. What do you th this tells you about your scale's quality? All other data is provided in the lab procedure Questions So, go ahead and answer them, then. a For measuring the block, (part 1) measure something and tell me what it is. Today, definitions. Here are your lab questions: 1. Define significant figure 2. Define accuracy 3. Define precision 4. How many significant figures are present in the measurement 0.053402 mm? How many are in 0.053400? Calculate the following: For three replicate (repeated) measurements, your values are as follows: 3.510 g; 3.565 g; 3.593 Answer the following questions: a. What is the average? b. the percentage error (the…

Answer question number 7 on the attached document

Answerr part b

dy Exam in Progress Q Search Choose the correct reagents to complete the following synthesis problem. To preview image click here 1. Correct reagent(s) for Select 2. Correct reagent(s) for II Select] 3. Correct reagent(s) for III Select] S HINNOWS > % > 24 ** 1-

In the last step, why is there a 2 in the second bracket before you input the numbers?