Answered: Suppose you measure a volume of 9.0 mL…

Suppose you measure a volume of 9.0 mL and a mass of 7.04 g for your first distillate. What is the density of the liquid? Group of answer choices 0.78 g/mL 0.782 g/mL 1.28 g/mL 1.3 g/mL

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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You are given 25 mL of a Red #40 Allure Red food stock solution of a concentration of 2.02 x 10-5 M. The molecular weight of the allura red is 496 g/mol. You use the lab equipment available to make 5 dilutions of the stock solution. A. Determine the volume of stock solution required to make 5.00 mL of the diluted solutions the desire concentrations are (Picture of table included) B. The absorbance of each dilution is also given in the table prepare a beer's law plot and attach. Then determine the concentration of an unknown solution of allura red if the absorbance is found to be 0.436.
While working in a pharmaceutical laboratory, you need to prepare 0.250 L of a 1.60-M NaCl solution. What mass of NaCl would be required to prepare this solution? mass: How would you go about preparing the solution? Place the steps in order from first to last. First step Last step Answer Bank Dilute the solution, slowly adding water until the desired volume is reached. Partially fill the flask with water. Mix until NaCl dissolves completely. Measure out the desired amount of NaCl. Add the measured NaCl to the 0.250-L volumetric flask. g 6.0
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Find the molarity of HC2H3O2 vinegar for sample a, sample b, and sample c. Do not round and remember to have the correct significant figures
2. The slopes of the lines in graph 1 can be interpreted as a useful quantity around the lab if you were working with water or one of these solutions. Explain the significance of the slope and how it might be used around the lab. Hint: look at the units and remember when a line is drawn it represents a sort of average as it places about half of the data above and below it due to random errors.
A Moving to another question will save this response. Question 20 Some graduate students have a solution of 1 M NaCl in the lab. What volume of the NaCl solution and what votume of water do they need to mix together to make 1 L of 0.035 M NaC? O 35 mL of 1M NaCl and 35 mL of H20 O 35 ml of 1M NaCl and 965 mL of H20 O 35 mL of 1M NaCl and 65 mL of H20 O 3.5 mL of 1M NaCl and 6.5 mL of H20 A Moving to another question will save this response. K< Qu MacBook Pro 46 888 F4 V8 FS F3 & %23 24 3 4. T K V. B F. 1R C. E. S'
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A Moving to another question will save this response. Question 13 Which of the following compounds is soluble? O SrCO, O CaCO3 O CuCO, O K,CO3 P Type here to search w F8 F9 F4 F5 F6 F7 F1 F2 F3 # $4 % 3 4
1. What percent solution if 11.2 g of Na2SO4 is dissolve to make 112 g of solution? Answer to 2 decimal place 2. The concentration of sugar in a soft drink is measured to be 8.60%. How many grams of sugar are in 268 g of the drink? Answer to 1 decimal place 3. If you have 3.40 g of NaOH solid, what mass of solution can be made to 0.32 % concentration? Answer to 1 decimal place 4. What mass of KF is need to prepare 440 mL of 0.12 M solution? Answer to 2 decimal places. Include the unit. 5. The concentration of sugar in a soft drink is measured to be 9.2 %. How many grams of sugar are in 196 g of the drink? Answer to 1 decimal place 6. What mass of KNO3 is need to prepare 626 mL of 0.24 M solution? Answer to 2 decimal places. Include the unit. 7. What is the molarity if 886 g of (NH4)2CO3 to make 1,716 mL of solution? Answer to 2 decimal places. Answer to 2 decimal places.