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How do you get the specific heat capacity of an unknown metal. This is the enthalpy and specific heat lab.
On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair. If your body develops a charge of -14 (microcoulombs), how many excess electrons has it acquired
allowed to expand adiabatically against constant Pext = 10 atm. Compute the final T, ?U, and ?H for this process. Use Cv = 20.8 J/mol*K and assume the gas is ideal.
the partial pressure of helium is 341 mmhg and the partial pressure of neon is 112 mmhg, what mass of argon is present in the mixture?
A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume. Solution A: 1.31% (m/v) starch Solution B: 7.48% (m/v) starch
Calculate the density of a cube of unknown mental which weighs 38g and has a side of length 4cm.
A section of membrane with an aquaporin (AQP) has a water transport rate of about 3 billion water molecules per second (3 × 109 molecules·s-1).
An NRM spectrum results from photons irradiation in which the nuclear spin aligment is flipped
If a student determines that the empirical formula for a compound is HO, which molecular formula is not possible based on these info alone
We want to know the pressure at this condition, but there is no means of measuring it since the tube is sealed. However, if the tube is cooled to -20 degrees celcius, small droplets of liquid are observed on the glass walls. What is the initial pr..
Sodium-24, which is used to locate blood clots in the human circulatory system, has a half-life of 15.0 hours. A sample of sodium-24 with an inital mass of 34.1 g is left to decay for 60.0 hours. Calculate the final mass of the sodium sample
A solution of hydrochloric acid has a concentration of 12.8 mol/L. However, a chemistry professor needs HCl(aq) with a concentration of 0.100 mol/L for an experiment with his students.
What role does culture play in shaping enterprise performance? How do leaders build effective cultures?
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