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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.
Why is it important to recrystallize the chalcone before proceeding with the hydrogenation reactions?
If the molar of a binary compound has a molar mas between 145 and 160 amu and contains 52.98% oxygen and the balance chhlorine what is the molecular formula
a 10.0l container of helium gas with a presure of 250mmhg at 0 degrees celsius is heated to give a pressure of
what is the % mass of acetic acid in the vinegar? Hint: What is the mass percent of aceditc acid titrated and what is the definition of % mass?
If a raindrop weighs 65 mg on average and 5.1 105 raindrops fall on a lawn every minute, what mass (in kg) of rain falls on the lawn in 1.5 h?
Sulfur trioxide gas is produced from sulfur dioxide gas as well as oxygen gas. Presume working at STP.
saturated r-134a vapor enters a steady-flow adiabatic compressor at 180 kpa and is compressed to 700 kpa 50degc. the
Copper is elctroplated from CuSO4 solution. A constant current of 4.00 amp is applied by an external power supply. How long will it take to deposit 1.00x10^2 g of Cu? The atomic mass of copper is 63.546.
Completely neutralizes stomach acid (HCl, .10M) How much carbon dioxide is made at STP conditions (37C, 767 torr, 100% humid) by ingesting one 1.834 gram tablet
A weak acid, HA, has a Ka value of 3.86 x 10-9. What is the Kb of A-. Use E notation and 3 significant figures.
Write structural formulas for all of the possible isomers of -pentyne that can be formed by moving the position of the triple bond
The stilbene molecule has seven double bonds, yet in this reaction, only one of them undergoes addition with the Br2 generated in the reaction mixture. What functional group(s) is(are) the other six bonds in, and what can you say about the reactiv..
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