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A sample of methane gas has a volume of 29mL at a pressure of 2atm. What is the volume of the gas (in mL) at 6.2 atm? Assume that there is no change in the temperature and the amount of the gas.
Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. This causes sodium azide (NaN3) to decompose explosively according to the following reaction.
If the mobile phase flow rate is 0.4 m/min, what is the analyte linear migration rate, and how long is the column?
What observed rotation is expected when a 1.50 M solution of (R)-2-butanol is mixed with an equal volume of a 0.750 M solution of racemic 2-butanol
The solubility of pure nitrogen in water at 1 atm and 25 degress Celsius is 6.8E-4 M. Calculate the concentration of nitrogen in water under atmospheric conditions where the partial pressure of nitrogen is 0.78 atm.
The overall equilibrium involves Ksp, Ka3 of phosphoric acid and Kw. Construct the constant and show the three equations that apply.
The density of the unknown solution is 1.232g/mL. Calculate the specific gravity of the solution
A solution is 0.43 M Sr(OH)2. What are the concentrations of H3O+ and OH ‾ in this solution?
When Cl2 gas is added to water during disinfection ofwater, it hydrolyzes with water to form HOCl. The power of acidHOCl is 88 times better than its conjugate base, OCl- .The pKa for HOCl is 7.5
Why does Sammy say I quit so abruptly? What does he mean when he says that the world is going to be hard to him after his experience at the A&P?
Draw resonanc contributors for the following species. Indicate which are major contributors and which are minor contributors to the resonance hybrid:
what is the ph of a buffer solution prepared from equal volumes of .25 m sol of a weak acid and .025 m sol of the salt of that weak acid. the acid has a pka of 4.82
determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make ammonia nh3
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