How much boiling water would you need
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment.
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If 1.200 grams of the metal, M results in the formation of6.026 grams of the barium sulfate product, what is the atomic weight of the unknown metal, M? What is the Metal?
A sample oxygen is collected over water and has a volume of7.84 ml. The pressure od the collected "wet" gas is 71.8 KPa andthe temperature is 20°C.
Assuming no deviation from Raoult's Law, what is the vapor pressure of a solution of 0.750 mol of n-pentane and 1.000 mol of n-hexane?
Calculate the amounts of NaCl that would need to be added to 100 mL of 0.001 M KHP to give four ionic strengths between 0.01 and 0.50. Take into account that KHP ionizes completely in solution, adding to ionic strength.
The mixture freezes at 62.7 degrees celcius. The freezing point of pure stearic acid is 69.4 degrees celcius. What is the freeezing point constant of stearic acid?
If 18.9 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia?
In the nitration of methyl benzoate, why do you wash the crystals with water followed by an ice-cold methanol washing? What is the purpose of pouring the reaction mixture overice?
When 7.20 grams of H2SO4 (l) at 22.0oC are poured into a 94.0 gram mixture of ice and water containing 6.15 grams of ice, a solution of sulfurinc acid (aq)forms at a temperature of 13.0 oC.
When 24.0 g of glucose (a nonelectrolyte) are dissolved in 500. gof water, the solution has a freezing point of -0.47°C.What is the molar mass of glucose? Kf of water is1.86°C/m.
Osmotic pressure is often used to determine the molar mass of large molecules; however, errors can be introduced into the calculationif the sample is not purified.
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