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Problem- In the experiment Classifying matter by properties, burns from improper handling of hot objects are the principal hazard related to this experiment. What should you do if you burn yourself?
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Solid AB2 is added to water and allowed to reach equilibrium. At equilibrium, the concentration of A2+ is found to be 0.24 moles/L. What is the Ksp of this salt
Question- Calculate the E (degree) for each of the following reactions and indicate (Y/N) if it occurs spontaneously or is not spontaneous-
a certain weak acid hahas a ka value of 9.7 x 10 -7.calculate the percent dissociation of ha in a 0.10 msolution?
The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10..
At 25°C and 1.00 atm pressure, one liter of ammonia is bubbled into 725 mL of water. Assume that all the ammonia dissolves and the volume of the solution is the volume of the water
What is the heat change in J associated with 65 g of gaseous acetic acid at 127 oC changing to solid at -50 oC? c(acetic acid) (g) = 1.11 J/(g.K) c(acetic acid) (liq) = 2.18 J/(g.K) c(acetic acid) (s) = 1.32 J/ (g.K) ?Hfus(acetic acid) = 192 J/g ?..
Suppose that O1 and O2 are eigenfunctions of a linear operator A with eigenvalues a1 and a2, respectively, and that we construct a linear combination Y=C1O1 + C2O2
Calculate the molecular weight of a small protein if a 0.40-g sample dissolved in 101mL of water has an osmotic pressure of 9.3 mmHg at 28degC.
Question- If bond-pair bond-pair repulsion is maximum for the C-H bonds in CH3X,? All bond angles is 450o for CH3X
there is a carbon phase diagram shown in the problem where there is a positive sloped curved line separating the
Explain why bromobenzene is unreactive to both sodium iodide in acetone and silver nitrate in ethaol, while benzyl chloride is reactive
considering the given equation as al2o3s rarr 4 als 3 o2g . where ?h 3339.6 kjmol determine ?h for the formation of
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