What mass of iron would be required
iron has a density of 7.87 g/cm. What mass of iron would be required to cover a football playing surface of 120 yards x 60 yards to a depth of 1.0mm?
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A buffer is made using 45.0 mL of 0.750 M HC3H5O2 and 55.0 mL of 0.700 M NaC3H5O2. What volume of 0.10 M NaOH must be added to change the pH of the original buffer solution by 2.5%? Ka for this acid is 1.3 x 10
what is the pH of a 0.100M solution of benzoic acid if ka=6.5x10-5 and the equilibrium equation of interest is : HBz(aq)+h20(l)<--->h3O+(aq)+Bz-(aq).
Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of N2O(g) is ______kJ/mol
The 50 Kg wheel is a solid circular disk which rolls on the horizontal plane in a circle of 600mm radius. The wheel shaft is pivoted about the axis O-O and is driven by the vertical shaft at a constant rate N = 48 rev/min about the Z-axis.
Professor Patt is trying to decide when he should shave his beard. Your job is to design a logic circuit whose output Y is equal to 1 when Professor Patt should shave his beard, and 0 when he should not. The circuit will receive three input va
The vapour pressure of water at that temperature is 27.1 mm Hg. Assume that all of the KClO3(s) decomposed. What was the %w/w of KClO3(s) in the original mixture?
Design the combinational logic circuit for an elevator controller such that the option to go up or down by only one floor is disabled. Assume that the building the elevator is in has 4 floors. Your inputs are the current floor and the next req
Suppose that a sample of pure water is saturated with gaseious CO2 to form a solution of carbonic acid. which response has the following species arranged in the order of decreasing concentrations at
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Based on the findings presented by Swathi and Reddy (2016), the authors highlight that the teaching profession is characterized by high levels of stress
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