General Chemistry, Experiment II
02/11/2012
Questions:
1- In, part I which flock determination was more(prenominal) accurate? Explain.
A- 2nd method with the graduate cylinder is more accurate. But not only because we effectuate it more difficult to read the ruler. It was also because we had to take dickens measurements (one for diameter another for height)...which could possibly create more mistakes. Furthermore, you want to multiply diameter and height to line to the volume, so any one of those reading had a mistake, the error would com pound off and get worse. The same is not true with measuring with graduated cylinder, which is in force(p) a one shot reading. If that reading is off a bit, it wont impact the density as much
2- Did you find that density was intensive or extensive? Explain
A- It was intensive. Because the mass did not change, even more volume was added.
3- Water has a density of 1.00g/ml term ice has a density of 0.91g/ml. will a 750-ml bottleful that contains 700.0ml of water burst when place in a deep-freeze? Prove your answer.
A- When you take 700ml x1g/mlx1ml/.91g it is equal to 769ml. 769ml is greater than 750ml was maximum potentiality of the bottle. When the water turn to ice its expended 19ml more what the bottle tin take. For that it will burst.
4- What is the volume, in cubic inches, of a gold nugget that has a mass of 82.00 ounces? Density of Au=19.3g/cm3; 453.6g=1pound; 16 ounces=1 pound; 16.4cm3=in3
A- 82 ounces is one gold nugget.
(82/16) x453.6 =2324.7grams; (2324.7g/19.3)/16.4= 7.3cubic inches
5- A- D=m/V ; 7.3x16.4x2.70=323.24gramsIf you want to get a full essay, order it on our website: Orderessay
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