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Michael Phelps, 18 time olympic gold medalist in swimming weighs 195 lbs and burns 1.0x10^3 calories per hour of swimming. His favorite subway sandwich, meatball marinara, has a nutritional value of 505 calories per serving (6inch). What percentage of a serving of this sandwich did Michael burn during his winning time of 1 minute 54 seconds in the 200-meter individual medley relay race?
A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?
how the isomerization from trans to cis isomer might occured. How does this compare to the isomerism of trans-[Co(NH3)4Cl2]Cl?
A nitric acid solution containing 71.0% HN)3 (by mass) has a density of 1.42 g/mL. How many moles of HNO3 are present in 1.00L of this solution?
A proton in a linear accelerator has a de Broglie wavelength of 117pm. what is the speed of the proton?
Define the possibility of stereoisomers exists, However, the addition of bromine to an equimolar mixture of cis- and trans-2-butene generates only three stereoisomers. Explain.
What is the change in the freezing point of a solution made by dissolving 14.7 g of C6H1206 into 150.0 ml of water? The density of water is 1.00 g/mL and Kf=1.86C/m.
Pinacol (2,3-dimethyl 2,3-butanediol) gives a mixture of pinacolone (3,3-dimethyl-2-butanone) and 2,3-dimethyl 1,3-butadiene by treating with acid.
a gas expand and does P-V work on the surroundings equal to 294 J, at the same time , it absorbs 196J of heat from the surroundings. what is the change in energy of the system
Draw the Lewis structures of the following compounds and find out number of electron groups, number of lone-pairs, geometry of electron
P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
Molybdenum crystallizes in a body-centered cubic lattice (the Mo atoms are at the lattice points only). If the density of the metal is 10.3 g/cm3, what is the unit cell edge length in pm?
A 335 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 628 mmHg. Calculate the moles of Ar present.
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