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Measurement Hwmk#4

Last updated over 5 years ago

13 questions

1

Mac measured the density of silver three times and obtained the following results:
Trial 1 - 10.6 g/cm3
Trial 2 – 10.8 g/cm3
Trial 3 – 9.6 g/cm3
The real density of Silver is 10.5 g/cm3.

Calculate Mac's percent error for his least accurate trial. Show all your work and include units in your answer!!!!

1

In the question above, which of Mac's trials would have the greatest percent error?

1

In question #1, looking at Mac's 3 trials, how would you decribe his measurements?

1

Convert 1. 250 days to years using dimensional analysis. No work = No credit. Must be solved using dimensional analysis for credit to be awarded.

1

Convert 1. 321 cm to miles using dimensional analysis. No work = No credit. Must be solved using dimensional analysis for credit to be awarded.

1

Convert 0.960 mm to meters using dimensional analysis. No work = No credit. Must be solved using dimensional analysis for credit to be awarded.

1

Convert 45 kg to mg using dimensional analysis. No work = No credit. Must be solved using dimensional analysis for credit to be awarded.

1

The density of pure solid copper is 8.94 grams per milliliter. What volume does 5 kg of copper occupy? Show all your work!!! No work = No credit

1

How many kilograms of mercury would fill a 5 liter container if the density of mercury is 13.6 g/cm3? Show all your work!!! No work = No credit

1

You calculate that your semester average on history is 97.5. When you get your report card, your average is 96. What was the percent error of your calculations? Show all your work and be sure to include units in your answer. No work = No credit

1

Calculate the density of a metal with a mass of 20.3 g and volume of 1.93 mL. Show all your work. No work = No credit.

1

Using your answer in the question above, what is the identity of the metal?

1

Based on the denisty of the metal that you calculated in #11, will the object float or sink in water?