Numerade

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Question 1 1 pts Once you have developed some new behavior, it is desirable to: stop reinforcing it so it will develop automatically. make sure it transfers to new situations. eliminate the full self-modification program as soon as possible. get into tempting situations to challenge your new competence.

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Given the following elementary reaction what is the molecularity? $$A + 2B \rightarrow AB_2$$ A unimolecular B bimolecular C termolecular D tetramolecular E Cannot be determined with the given information

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Under the net method of recording accounts receivable from customers, sales discounts not taken by customers are recorded on the income statement as: Sales discounts forfeited A component of "other income and expense" A reduction in operating expenses A deduction from sales revenue

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Esther spent 5/6 on new shirt 1/8 on socks What fraction spent? What fraction left?

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If the fluid inside a cell has a 1.5% solute concentration, which of the following solution(s) would be considered HYPOTONIC? SELECT ALL THAT APPLY

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Suppose the MPC equals 0.90 instead of 0.80. Investment spending rises by $1000 in round one. The change in spending is $1000, and the change in income is $1000. What is round two?

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solve for density of graduated cylinder, burette, & pipette 2. Mass of dry, empty 25-mL flask: 30.13 g Scale Number Burette 1.00 M NaCl Exact 0.600 M NaCl Exact 0.400 M NaCl Volume Mass Volume Mass Exact Volume Mass 0.200 M NaCl Exact Volume Mass 3. Record data for each type of volumetric glassware in the following tables. Mass of beaker + ~5 mL of 5.00 M solution: 34.779 g, 10.01 g, 35.29 g, 6.00 g, 34.23 g, 7.2 g, 1156 g Mass of beaker + ~10 mL of solution: 15.02 g, 40.14 g, 101 g, 40.53 g, 211 g, 01-0h g Mass of beaker + ~15 mL of solution: 15.00 g, 20.02 g, 1-th g, 1001 g, 45.02 g, 1t1 g Mass of beaker + ~20 mL of solution: 20.00 g, 50.35 g, 20.01 g, 1072 g, 2405 g, 10:22 g, 11-05 g Graduated Cylinder Mass of beaker + 5 mL of solution: 35.0769 g Mass of beaker + 10 mL of solution: 39.1439 g Mass of beaker + 15 mL of solution: 39.797 g Mass of beaker + 20 mL of solution: 34.1034 g Sample calculations for the density of one NaCl solution concentration (use burette data): d=m/V, d=34.77 g/116it8n 0.00500 bl0thh bhiahh 445359 obohbh 49.0539 bt00bh Pipette Mass of beaker + 5 mL of solution Mass of beaker + 10 mL of solution Mass of beaker + 15 mL of solution Mass of beaker + 20 mL of solution 1.00 M NaCl 0.600 M NaCl 0.400 M NaCl 0.200 M NaCl Calculate the density (in g/L) for each solution after each 5.00 mL addition and record them in the following tables. 35.4469 g, baaaoh, 69035h, G1.9709 35.1079 g 35.3549 g, 39.5989 34.312 g Graduated Cylinder 1.00 M NaCl Density Measurement #1: 6892-0h Density Measurement #2: 65425h Density Measurement #3: 661205 Density Measurement #4 0.600 M NaCl 0.400 M NaCl 0.200 M NaCl 6EhIOh 49.1359, 50.0959 45.2139, 50.5659 Average Density Standard Deviation Pipette Density Measurement #1 1.00 M NaCl 0.600 M NaCl 0.400 M NaCl 0.200 M NaCl Density Measurement #2 Density Measurement #3 Density Measurement #4 Average Density Standard Deviation Burette Density Measurement #1 1.00 M NaCl 0.600 M NaCl 0.400 M NaCl 0.200 M NaCl Density Measurement #2 Density Measurement #3 Density Measurement #4 Average Density Standard Deviation Plot data for density of NaCl versus molarity of NaCl for each piece of glassware using Microsoft ExcelTM and chart options. Attach your spreadsheet and graph to this datasheet (from Data Analysis section).

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11. A surgical procedure requires 12 mL of 2% w/v lidocaine with epinephrine (1:200,000). Due to a shortage of this strength, 1.5% w/v lidocaine with epinephrine (1:200,000) was used as an alternative

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QUESTION 5. Is each nozzle within 10 percent of the manufacturer's rating for that nozzle? Manufacturer's ratings are in gallon per minute. Convert milliliters per 30 seconds to gallons per minute. Then determine if any nozzle delivered 5 percent above or below the manufacturer's rating for that nozzle. (3 points) # of nozzles xgal x 60 min -gal hr nozzle minute hr Nozzle 1: ___ gal per minute 250 mL x 1 gal x 60 nozzle sec x 3 nozzles = 50,400 30sec 3785 mL 1 nozzle min 113,550 =.44 Nozzle 3: ___ gal per minute Nozzle 2: ___ gal per minute Nozzle 4: ___ gal per minute Manufacturer's rating for flow rate (Answer to QUESTION 2): .2 • Five percent above manufacturer's rating for flow rate: • Five percent below manufacturer's rating for flow rate:

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4. (10 pts) Determine the peak and average power delivered to a load resistor $R_L = 100 \Omega$ using a half-wave rectifier circuit driven by a 4:1 transformer tied to a 240 $V_{rms}$ ac source. Assume that the diode forward voltage $V_D = 0.7 V$.

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alvin w.