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A packing crate measures 0.40m X 0.40m X 0.25m. You must fill the crate with boxes of cookies that each measure 22.0cm X 12.0cm X 5.0cm. Explain how many boxes of cookies can fit into the crate?
What is the pH of a solution prepared by mixing 25.00 mL of a 0.10 M solution of the weak acid CH3CO2H with 25.00 mL of 0.040 M sodium acetate, CH3CO2Na? Assume that the volume of the solutions are additive and that Ka = 1.8 ?* 10-5 for CH3CO2H.
Calculate the molarity of a solution made by adding 44.4 mL of concentrated ammonia (28% by mass, density 0.880 g/mL) to some water to some water in a volumetric flask
determine the evaporator temperature at which a single-stage R22 plant will cease to produce any refrigerating effect in delhi where the condenser temperature is 42 degree C
question 1. a solution of 0.100 m acetic acid is prepared.a what is its ph value?b if 20 of the initial acetic acid is
Which of the following solutes dissolved in 1.0 kg of water would be expected to cause the water to freeze at the lowest temperature
Despite that allylic radical can have only 2 resonance structures versus 5 resonance structures for benzylic radical, why allylic radical benzylic radical in stability.
A mixture of the compounds magnesium bromide and potassium chloride contains 48.7 g of magnesium bromide and is 70.5 % by mass magnesium bromide. The compound potassium chloride is 52.4 % by mass potassium. Calculate the mass (g) of chlorine in th..
How would you find the Ksp of a salt using only molecular weight and solubility?
Look up the molar mass and the density of 2-chloro-2-methylpropane in a reference book such as The Merck Index. Calculate the number of moles of HCl that are produced by complete hydrolysis of 1.0 mL of 2-chloro-2-methylpropane.
Nalorphine (C19H21NO3), a relative morphine, is used to combat withdrawl symptoms in narcotics users. How many grams of a 0.0036 molality aqueous solution of nalorphine are needed to obtain a dose of 2.51mg
The analysis of a gaseous compound revealed that it was 85.7% C and 14.3% H by mass. When 1.77 g of the gas is stored in a 1.500 L flask at 17oC it has a pressure of 1.10 atm. What is the molecular formula of the compound
A 11.6-g sample of CaCl2 is dissolved in 139 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
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