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A tube is bent at 90 degree. The horizontal end of length L is closed but the vertical end is open to the atmosphere. A fluid of density (p) fills the tube to a height H and the tube is rotated about the vertical axis at rotational speed w. Find the gage pressure at the closedend as function of at most p, g, w, L and H.
Treatment of ammonia with phenol in the presence of hypochlorite yields indophenol, a blue product absorbing light at 625 nm, which can be used for the spectrophotometric determination of ammonia.
The % ionization of a weak acid always declines in a solution that contains the salt of the anion relative to a solution of the acid alone. For example the % dissociation of the acetic acid is less in a solution that contains sodium acetate than i..
If the solution has the same density and specific heat as water, what is ?H for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes.
A 15.0 gram sample of chromic acid is dissolved in enough water to produce 275 mL of solution. The concentration of the solution is ?
A latex balloon, inflated to an excess pressure of 1kPa and a radius of 30cm, is attached to a smooth nozzle, initially stoppered. The stopper is removed, and the balloon deflates in 5 seconds.
The flame in a torch used to cut metal is produced by burning acetylene (C2H2) in pure oxygen. Assuming the cumbustion of 1 mole of acetylene released 1251 kJ of energy
What was the pH at the end of the reaction? e) What would the final pH be in the absence of any buffer?
what is the weight of O in 742.0 g of citronella oil that has the chemical formula C10H18O
benzopinacol and benzopinacolone have nearly identical melting points, describe how you might prove that samples of the two compounds are different
a sample of riboflavin has a molar absorptivity of 1.67 x 10^3 L(mol x cm). What is the concentration of a solution with an absorbance of 0.484? The pathlength is 1.00cm.
The heat of fusion of ice(the heat associated with ice melting) is 6.0 kJ/mol. Find the temperature of the coffee after the ice melts.
What is the Fe2+:Sn2+ concentration ratio in the following cell at 25C if the measured cell
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