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If a wheelchair-marathon racer moving at 13.3 miles per hour expends energy at a rate of 635 Calories per hour, how much energy in Calories would be required to complete a marathon race (26.2 miles) at this pace
Calculate the density in grams per liter of the following gases at 29.7 degrees Celsius and 700 torr: NH3, N2, N2O
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
A current of 4.67 A is passed through a Sn(NO3)2 solution for 1.80 hours
What is the hydrogen ion concentration of a solution when 2.334ml of acetic acid (60.05 g/mole) and 2.082 grams of sodium acetate (82.04 g/mole) are added to 500ml of water?
The decay of radioactive elements follows first-order kinetics. Therefore, the rate of decay can be described by the same integrated rate equations and half-life equations that are used to describe the rate of first-order chemical reactions.
A shelf containing several chemicals (Salicylic acid, 4-(4-Hydroxyphenyl)butan-2-one {a.k.a. Raspberry Ketone} and 4-methylaniline) fell and the vials shattered.
Make a rough calculation of the amount of CO2 exhaled by a person in day. With this, and assuming a space crew of five, how much LiOH must be taken in a seven day mission? Take into consideration a safety factor of 200%.
The volume of a unit cell of diamond is .9454 nm^3 and the density of diamond is 3.52 g/cm^3. find the number of carbon atoms in the unit cell of diamond
In the television series Star Trek, the transporter beam is a device used to "beam down" people from the Starship Enterprise to another location
We are asked to explain the pH and how to find hydrogen ion concentration - Find the pH of an acidic substance of your choice.
Why is it possible to separate the product (6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone) from sodium hydroxide using acetone?
What would the concentration (or activity) of Hg2+(aq) be in the solution if equilibrium existed between the water in soil pores, the gas and cinnabar
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