[Review Topics)[References)Use the References to access important values if needed for this question.A general chemistry student found a chunk of metal in the basement of a friend's house. To figure out what it was, she used the ideas just developed in class about density.She measured the mass of the metal to be 340.3 grams. Then she dropped the metal into a measuring cup and found that it displaced 15.7 mL of water.Calculate the density of the metal.Density =g/mLDensities of Some CommonSubstancesSubstance Density (g/mL)Water1.00Aluminum2.72Chromium 7.25Nickel8.91Copper8.94Silver10.50Lead11.34Mercury13.60Gold19.28Tungsten19.38Platinum21.46This metal is most likelySubmit AnswerRetry Entire Group9 more group attempts remainingPreviousEmail InstruCCengage Learning | Cengage Technical SupportWP.63°F Mostly sunnyDIIPrtScnHomePgDnEndF10&RT.KL

Given data is as follows: The mass of the metal = 340.3 grams The volume displaced = 15.7 mL The…

Answered: A general chemistry student found a…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 12STP

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a. There are 365 days per year, 24 hours per day, 12 months per year, and 60 minutes per hour. Use these data (o deter- mine how many minutes are in a month. b. Now use the following data to calculate the number of minutes in a month: 24 hours per day, 60 minutes per hour, 7 days per week, and 4 weeks per month. c. Why are these answers different? Which (if any) is more correct? Why?
Although your textbook lists (he rules for converting an ordinary number to scientific notation, oftentimes students remember such rules better ¡f they put them into their own words. Pretend you are helping your 12-year-old niece with her math homework, and write a paragraph explaining to her how to convert the ordinary number 2421 to scientific notation.
1.90 A calibrated flask was filled to the 25.00-mL mark with ethyl alcohol and was found to have a mass of 19.7325 g. In a second experiment, 25.0920 g of metal beads were put into the container and the flask was again filled to the 25.00-mL mark. The total mass of the metal plus the alcohol was 43 .0725 g. Describe how to determine the density of the metal sample.
If you repeat the same measurement many times, will you always obtain exactly the same result? Why or why not? What factors influence the repeatability of a measurement?
According to the Official Rules of Baseball, a baseball must have a circumference not more than 9.25 in or less than 9.00 in and a mass not more than 5.25 oz or less than 5.00 oz. What range of densities can a baseball be expected to have? Express this range as a single number with an accompanying uncertainty limit.
The density of an irregularly shaped object was determined as follows. The mass of the object was found to be 28.90 g 0.03 g. A graduated cylinder was partially filled with water. The reading of the level of the water was 6.4 cm3 0.1 cm3. The object was dropped in the cylinder, and the level of the water rose to 9.8 cm3 0.1 cm3. What is the density of the object with appropriate error limits? (See Appendix 1.5.)
Why is the length of the line in the illustration below reported as 2.55 in. with one ruler and as 2.5 in. with another?
1.65 An industrial engineer is designing a process to manufacture bullets. The mass of each bullet must be within 0.2 5% of 150 grains. What range of bullet masses, in mg, will meet this tolerance? 1 grain = 64.79891 mg.
The active ingredient of aspirin tablets is acetylsalicylic acid, which, has a density of 1.4 g/cm3. In a lab class, a student used paper chromatography to isolate another common ingredient of headache remedies. The isolated sample had a mass of 0.384 g and a volume of 0.32 cm3. Given the data in the following table, what was the other ingredient in the headache remedy? Density Values for Potential Headache Remedies Compound Density (g/cm3) White table sugar 0.70 Caffeine 1.2 Acetylsalicylic acid 1.4 Sodium chloride 2.2
1.89 Imagine that you place a cork measuring 1.30cm4.50cm3.00cm in a pan of water. On top of this cork, you place a small cube of lead measuring 1.15 cm on a side. Describe how you would determine if the combination of the cork and lead cube will still float in the water. Note any information you would need to look up to answer the question.

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