How long does it take a person at rest to breathe
How long does it take a person at rest to breathe one mole of air if the person breathes 78.0 mL/s of air that is measured at 25 degrees Celcius and 755 mmHg?
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Why is it possible to separate the product (6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone) from sodium hydroxide using acetone?
If 61.5 L of oxygen at 18C and an absolute pressure of 2.45 atm are compressed to 48.8L and at the same time the temperature is raised to 56 degrees C, what will the new pressure be?
Phosgene, C12C = O, has a smaller dipole moment then formaldehyde, H2C = O, even though it contains electronegative chlorine atoms in place of hydrogen. Explain
A 0.335 m string is clamped at both ends. If the lowest standing wave frequency in the string is 326 Hz, what is the wave speed?
A boiler is used to heat steam at a brewery to be used in various applications such as heating water to brew the beer and sanitizing the brewing tanks.
A Sunscreen preparation contains 2.50% by mass benzyl salicylate. If a tube contains 4.0 ounces of sunscreen, how many kilograms of benzyl salicylate are needed to manufacture 325 tubes of sunscreen?
The force constant for H-Br is 516 Nm^-1 , Assume that only H atom moves (mass of H = 1.67 x 10^-27 Kg) . What would be the separation between adjacent vibrational levels ?
Pure Ag melts at 961.8 degreesC and boils at 2162 degreesC.The heat of fusion for Ag is 11.28kJ/mol and the heat ofvaporization is 250.6kJ/mol.
The isothermal compressibility of lead is 2.21x10^-6 atm^-1. Express this value in Pa^-1. A cube of lead of side 10 cm at 25C was to be inserted in the keel of an underwater exploration TV camera, and its designers needed to know the stresses in t
The solubility product constant for A(IO3)2is 1.55x10^-6. What volume (in mL) of 5.29x10^-2 MS2O32- would be required totitrate a 1.250x10^1 mL sample of the saturated solution ofA(IO3)2?
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