Question

CHEM-C 105 Principles of Chemistry I Summer Semester Practice Midterm Exam. 7? questions Note that questions are graded by answer only and work doesn't count HOW do You Aind 1. In which of the following are the masses given in the correct order? A. eg < mg <g< kg the Correct order 2 B. eg < g < kg < mg C. kg <g<eg < mg D. mg< eg<g< kg 2. For each of the diagrams above, determine how accurate and precise the results are: good Poor accuracy Precision -goca Accuracy and precision thie Pcor accuracy and precision 3. What is the temperature (in C) measured using this thermometer to the correct number of significant figures? 25 20 15 B 21.7°C C. 21.70°C A. 21°C D. 22°C 4. If the density of ethanol is 0.789/cm, what is the mass (in g) of 32 mm of ethanol? HOu do YOu Solve these z 5. The heart rate of an individual is 72 beats per minute, and 55 ml. of blood pass through the aorta with cach beat. How many liters of blood are pumped in an hour? 5

Answer 1

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