What was the percent of caco3 by mass in the limestone
When a 1.25-gram sample of limestone was dissolved in acid, 0.44gram of CO2 was generated. If the rock was dissolved in acid, carbonate other than CaCO3, what was the percent of CaCO3 by mass in the limestone?
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The density is 64 lbm/ft3, calculate the diameter (in) of the bubble. Assume the temperature is a balmy 80F (you are sitting on a Caribbean beach).
A survey of 200 ninth-graders found that 31.5% had used cigarettes in the past week, and a survey of 250 high-school seniors found that 35.2% had used cigarettes in the past week. Is there significant difference between the two corresponding popul
Determine the pipe diameter to achieve this flow, exactly. This requires four basic pipe and fluids equations including the Colebrook Equation to solve.
To decide whether two different types of tennis raquet have the same true average power, different raquets have been tested. These are the results
Calculate the torque on the center of mass of the rod alone with respect to the pivot point.
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A 25 mL sample containing Cu2+ gave an instrumentsignal of 23.6 units (corrected for a blank). When exactly 0.5 mLof 0.0287 M Cu(NO3)2 was added to thesolution, the signal increased to 37.9 units.
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