Calculate the heat evolved by burning one mole
Calculate the heat evolved by burning one mole of a C20H40 if a 0.50 gram samplecauses the temperature of 2.50 Kg of water to rise3.46oC (water specific heat is 4.2J/goC)
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Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a resistance of 0.832. What is the resistance of the copper wire? Take the resistivity of copper to be 1.72 x 10-8 O·m, and that of aluminum to be
This was repeated three times for each participant and the results are shown in the table below. Calculate the mean, mode and median for each. Time in Seconds (s)
If you want to change the buffer composition of aprotein solution via diafiltration, how many resevoir volumes are required to remove 99% of the original buffer components?
A thunderstorm drops half an inch of rain (which is about 1.27cm) on Chicago which covers are area of about 228 square miles (1 mile = 1.609 km) If a typical raindrop is considered to be a sphere with a diameter of 4millimeters, what is the order
A cylindrical cable with 2.11 x 10-8 m resistivity carries a current of 1300 A. There is a potential difference of 2.0 x 10-3 V between two points on the cable that are 0.24 m apart. What is the radius of the cable?
Can a test of significance show a statistically significant relationship while a measure of association shows a weak relationship between the variables?
Ethan C2H6 has a molar heat of vaporization of 15kj/mol. How many kilojoules or energy are required to vaporize 5g of ethane?
Create a 95% confidence interval for the slope of the regression line and explain what the interval means Create a 95% confidence interval for the average fuel efficiency among cars weighing 2,500 pounds and explain what the interval means
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