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If the spectrophotometer that was used was miscalibrated so that each absorbance reading was too high by 0.100 units
If you have 300.0 mL of water at 25.00 degrees C and add 130.00 mL of water at 95.00 degrees C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.
the vapor pressure of pure water at 70degc is 235 mm hg. what is the vapor pressure depression of a solution of 125 g
Calculate the molar mass of the acid. After 11.7 mL of base had been added during the titration, the pH was determined to be 5.17. What is the Ka of the unknown acid
The vapor pressure of the water at 16 degrees C is 14 mmHg; CaCO3(s)-->CaO(s)+CO2(g): a) what is the partial pressure of the CO2 gas? b) How many moles of CO2 gas were in the CO2 gas sample
Calculate the standard emf for each of the following reactions:a)H2(g) + F2(g)---> 2H+(aq) + 2F-(aq)
2.58g of a gas has a volume of 3.97L at 745mmHg and 21 degrees celcius. What is the molecular weight of the gas?
Barium hydroxide, often used to titrate weak organic acids, is obtained as the octahydrate, Ba(OH)2. 8H2O.
How many moles of CO2 form when all of the butane is the lighter burns. How many molecules of gas form when the butane in the lighter burns completely
ch4202co22h20 h.889.1kjhfh20-285.8kj hfco2-393.5kjwhat is the standard heat of formation of methane ch4 as calculated
Given that the density of water at 25°C is 0.9970 g/mL, what is the minimum volume of water required to melt 31.5 g of ice?
Which fuel is consumed the most in the United States? Which fuel is used the most in the generation of electricity? On average, how much energy do you radiate each second? List three different general forms of energy (other than kinetic energy and..
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