accuracy of an experiment determined? What is density and how will it beused in the Measurements Experiment?2. You are asked by the King of Allegesia to determine if the crown he was givenfor his birthday is pure gold. The density of pure gold is 19.32 g/mL; thedensity of water is 0.998 g/mL at 20°C. There is a container when filled tomark contains 1900.0 mL. When the container is filled with water to the mark,it has a mass of 2499.5 g. The crown is placed in the container and filled tomark with water and now weighs 15,113.3 g. The crown has a mass of13,910.0 g. What is the density of the crown? Is the crown pure gold?3. Linus Pauling (recipient of 2 Nobel Prizes, one for Chemistry and another forPeace) wrote a book, '"Vitamin C and the Common Cold", which proposedthat large doses of vitamin C can cure the common cold. One commercialover-the-counter production consists of 500.0 mg tablets that are 20.0 % bymass Vitamin C. How many of these tablets are need for a 1.00 g dose ofvitamin C? Each 500.0 mg tablet costs 2 cents. If you can take a 1000.0 mgtable of pure vitamin C for 9 cents a tablet, which would be more costeffective?

In the initial condition, container has just water filled to the mark.So, volume of water intially =…

Answered: accuracy of an experiment determined?…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.96QE

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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.
1.48 A rock is placed on a balance and its mass is determined as 12.1 g. When the rock is then placed in a graduated cylinder that originally contains 11.3 mL of water, the new volume is roughly 17 rnL. How should the density of the rock be reported?
1.86 Unfermented grape juice used to make wine is called a ‘must.” The sugar content of the must determines whether the wine will be dry or sweet. The sugar content is found by measuring the density of the must. If the density is lower than 1.070 g/mL, then sugar syrup is added until the density reaches 1.075 g/mL. Suppose that you have a sample taken from a must whose mass is 47.28 g and whose volume is 44.60 mL. Describe how you would determine whether or not sugar syrup needs to be added and if so, how would you estimate how much sugar syrup to add?”
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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.
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