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Rosi
Questions (8)
What are the mean, median, mode and range of the data set given the altitude of lakes in feet: -12, -9, -14, -39, -49, -49, -18,
1 answer
532 views
a projectile is fired horizontally outward from the top of a table. the initial height of the bullet above the ground is 1.5
1 answer
561 views
At what temperature will the following reaction happen spontaneously, given that ΔH=8.91×103J and ΔS= –219.20 J/K?
CaSO4(s)
2 answers
669 views
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.230 M HClO (aq) with 0.230 M KOH (aq). The
1 answer
3,861 views
Calulate the degree of ionization for NH3(aq) in 1.0 M solution, Kb = 3.236E-4. I've seen degree ionization for acids and not
3 answers
906 views
For the titration of 50.00 mL of 0.106 M NH3 with 0.225 M HCl, calculate
(A) the initial pH and when the pH neutralization is (B)
1 answer
1,593 views
How would the calculated value of the molar mass of an unknown acid be affected (higher, lower, or no change) if the following
1 answer
4,059 views
The equillibrium constant (Kp) for the interconversion of PCl5 and PCl3 is 0.0121:
PCl5(g) --> PCl3(g) + Cl2(g) A vessel is
2 answers
1,593 views
Answers (1)
A photon has a wavelength of 6.2 meters. Calculate the energy of the photon in joules. (Planck's constant is 6.626 × 10-34 joule seconds, the speed of light is 2.998 × 108 m/s)? I'm confused in how to find the answeer.
