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10. A student measured the density of copper. In 5 measurements, the density was found to...
1. A student makes several measurements of the density of an unknown mineral sample. She then...
1. A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its A) accuracy. B precision C) systematic error. D) determinate error. E) human error. The temperature of a gas sample isproperty. 2. A) intensive B) extensive 3. Which one of the following is a "substance" in the chemical sense as used in...
e r and more measurement gives for the density of the same hoy. Decide which of...
e r and more measurement gives for the density of the same hoy. Decide which of the earliermasurements was the most in the notebol gmt SON Distinguishing accuracy and precision Four research teams measured the density of a new alloy, and what each team wrote in its team notebook is shown in the table below. Suppose a later and more reliable measurement gives 8.00 g/cm accurate, and which was the most precise. for the density of the same alloy. Decide...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water displacement: 19.8ml (calculate) 15. Initial volume of water in graduated cylinder: 10.5 mL 16. Volume of water and metal piece 3: 40.6 ml 17. Volume of metal piece 3 by water displacement: 30.ImL (calculate) PART D. Quantitative and Empirical Skills Density - Mass/Volume 18. Densities of metal pieces 1, 2 and 3: .918g/ml 10l1g/mL .997 (calculate for each metal piece) 9 19. Average density...
d) perfume evaporating e) water freezing (1) 2. What type of error would cause a set...
d) perfume evaporating e) water freezing (1) 2. What type of error would cause a set of values to have high precision but low accuracy? (1) a) If the density of copper is 5.69 g cm, how much would 8.5 cm Provide your answer in kilogram. of copper weigh? (2) b) Find the answers to the following calculations with the correct number of significant figures EM 1118 Class Quiz 1 Version 3 (Students).pdf finished downloading. Open Open folder View down
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
CHEM-C 105 Principles of Chemistry I Summer Semester Practice Midterm Exam. 7? questions Note that questions are...
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...
1. A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its A) accuracy. B precision C) systematic error. D) determinate error. E) human error. The temperature of a gas sample isproperty. 2. A) intensive B) extensive 3. Which one of the following is a "substance" in the chemical sense as used in...
e r and more measurement gives for the density of the same hoy. Decide which of the earliermasurements was the most in the notebol gmt SON Distinguishing accuracy and precision Four research teams measured the density of a new alloy, and what each team wrote in its team notebook is shown in the table below. Suppose a later and more reliable measurement gives 8.00 g/cm accurate, and which was the most precise. for the density of the same alloy. Decide...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water displacement: 19.8ml (calculate) 15. Initial volume of water in graduated cylinder: 10.5 mL 16. Volume of water and metal piece 3: 40.6 ml 17. Volume of metal piece 3 by water displacement: 30.ImL (calculate) PART D. Quantitative and Empirical Skills Density - Mass/Volume 18. Densities of metal pieces 1, 2 and 3: .918g/ml 10l1g/mL .997 (calculate for each metal piece) 9 19. Average density...
d) perfume evaporating e) water freezing (1) 2. What type of error would cause a set of values to have high precision but low accuracy? (1) a) If the density of copper is 5.69 g cm, how much would 8.5 cm Provide your answer in kilogram. of copper weigh? (2) b) Find the answers to the following calculations with the correct number of significant figures EM 1118 Class Quiz 1 Version 3 (Students).pdf finished downloading. Open Open folder View down
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
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...
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