Volume of one coin:
Volume one coin (show your calculation)
Volume of nine coins = g
Volume of one coin:
Absolute Uncertainty: Relative Uncertainty: (show calculations)
Density
Questions:
1. Which method was the most accurate? Explain briefly
2. Identify a more accurate method of measuring the radius and thickness of the coin.
Answers: 3
Chemistry, 23.06.2019 00:20
Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.
Answers: 1
Chemistry, 23.06.2019 12:30
Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.
Answers: 2
Chemistry, 23.06.2019 16:30
In chile, the deepest earthquake occurred at 61.7°w longitude at a depth of 540 km. if the rocks at the focus began subducting 10 million years ago and are now 1000 km from their original position, what is the average rate of subduction in cm/yr?
Answers: 1
Chemistry, 23.06.2019 18:30
Molecules of sugar are attracted to each other and form crystals. if you place sugar in water, the crystals break apart, but the molecules remain the same kind of sugar. what can you infer about the bonds between atoms in a sugar molecule compared with the forces that attract sugar molecules to each other?
Answers: 1
Volume one coin (show your calculation)
Volume of nine coins = g
Volume of one coin:
Volume of one coin:
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