Highlight each chiral center in the following molecule. If there are none, then check the box under the drawing area. There are no chiral centers. HN Br Br Cl X

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(unchanged/inaccurately high/inaccurately low). evaporated from inside the flask before weighing is erefore, the ultimate calculation of pressure if you did not make sure all the water was (overestimated/underestimated) 6. Assuming all the water has evaporated, why do you still need to let your flask cool before weighing? 7. Under what conditions do gases begin to deviate from ideal behavior? a. High pressure, low temperature b. Low pressure, high temperature c. High pressure, high temperature d. Low pressure, low temperature e. gases do not deviate from ideal behavior 8. What are the values of temperature and pressure used to determine the value of R, also known as standard temperature and pressure or STP? a. OK, O atm b. 273.15 K, 1 atm 9. c. OK, 1 atm d. 273.15 K, O atm e. 1 K, 1 atm The water displacement method used determines the volume of what? a. the water in the kernel b. the outer shell C. the starchy center d. a and b e. a, b and c 10. The error mentioned in question number…

A lab sample containing sodium chloride, ammonium chloride and sand.  It initially weighs 3.207 grams, prior to heating.  After heating that sample weighs 2.971 grams. What is the percentage of ammonium chloride in that initial mixture?  Answer with the percentage, but do not include the percent sign.