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Undergoing moderate activity, an average person will generate about 350 kJ of heat per hour.Using the heat of combustion of palmitic acid (ΔH=-9977.6kJ/mol) as an approximate value for fatty substances, estimate how many grams of fat would be required per day to sustain this level, if all were burned for heat.
Express your answer with the appropriate units.
The molar mass of corn oil is 890g/mole. How many moles and how many grams of sodium hydroxide are required to react with the 15mL (13.7g) of corn oil? Show your calculations.
How many isomers of the alkenes having the molecular formula C6H12 would have "trans" or "E" in their name
How many liters of softened water, containing a sodium concentration of 5.8×10^-2% sodium by mass, have to be consumed to exceed the FDA recommendation (less than 2.4 g sodium per day)? (Assume a water density of 1.0 g/mL.)
If a volume of 55.77 mL HCl is used to completely neutralize 1.892g Na2CO3 according to this equation, what is the molarity of HCl
A solution is made by dissolving 21.5 grams of glucose (C6H12O6) in 255 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m?
When potassium carbonate is added to the remaining solution, a precipitate occurs. Which ions were present in the original solution? Write net ionic equations for the formation of each of the precipitates observed.
An experiment for a new asthma medication was set up into two groups. Group one was given the new drug for asthma, while group two was given a sugar pill. The sugar pill serves as a(n).
addition of excess NH3 to this acidic solution produces only a blue solution. Which group III ions are present, which are absent and which are in doubt? How would you remove all doubt?
oxygen gas is collected overwater at a temperature of 10 c and a pressure of 1.02 atm. the volume of gas plus water
What is the minimum uncertainty in the position of a hydrogen atom in a particle accelerator given that its speed
A Compound Contains 21.6% Sodium, 33.0% Chlorine, 45.1%Oxygen. Determine the Empirical Formula Of the Compound
A single pulse of a laser yields an average of 5.00 multiplied by 1018 photons with = 633 nm. If melting ice to water at 0°C requires 6.01 kJ/mol, what is the fewest number of laser pulses need to melt 10.0 g of ice?
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