Recent content by harambe

Homework Statement The hydroxide ion concentration in an aques H2CO3 solution is 4X10^{-4}M at 25°C OH- ion concentration in the solution is Homework Equations Ph=log(H+ or OH-) [/B]The Attempt at a Solution I calculated the PH of H+ in the solution which came to be 4.3979.Considering...

Homework Statement 0.1mole of N2O4 (g) was sealed In a tube under one atmospheric conditions at 25°C.Calculate the number of moles of NO2(g) present if the equilibrium N204(g) --->2NO2(g) (Kp=0.14) is reached after some time Homework Equations K=[NO2]^2/[N2O4] 3. The attempt...

Okay. Like we agreed the reaction is CH3COOH +C2H5OH -----> CH3COOC2H5+ H2O (1-x) (1-x) (x) (x) Snce x=1/3 therefore concenterations become CH3COOH +C2H5OH -----> CH3COOC2H5+ H2O (2/3) (2/3)...

Okay. Upon reading the question carefully ,I think I got the mistake now .. . x=1/3 was the concenteration of ester at equilibrium No need for the weird calculation I did Thanks for the help

Wait. . How is x=1/3 like you have quoted @Charles Link . Shouldn't the expression be 1/3rd of concentration if carboxylic acid equal to ester giving us 1-x/3 = x Solci g this gives us x=1/4

1/9

Okay so the reaction is C2H5OH+Ch3COOH------>CH3COOC2H5 +H2O. But still it gives me wrong answer . ...

Homework Statement One mole of pure ethyl alcohol was treated with one mol of pure acetic acid at 25 °C.One third of acid changes into ester at equilibrium The equilibrium constant for the reaction will be Homework Equations C2H5OH+CH3COOH------>C2H5COOCH3[/B] K={A}^m{B}n/{C}^x{D}^z where...

Homework Statement Estimate the average S-F bond energy in SF6 The standard heat of formation values of SF6(g) , S(g) and F)(g) are: -1100, 275 and 80 kj / mol respectively. Homework Equations ∆H=∆Hf (products) -∆Hf(Reactants) S(g) +6F)(g) ------>SF6(g) The Attempt at a Solution I...

1/2{mv2} - GMm/R=-GMm/(R+H) Is this correct

Oops .I had to use potential energyIs it right now

Homework Statement A particle is projeccted from the surface of the Earth with an initial speed of 4km/s.Find the maximum angle attained by the particle.Radius of the earth=6400km and g=9.8m/s2 Homework Equations KE1+U1=KE2+U2 [/B]The Attempt at a Solution So I tried to proceed by this...

Search about double slit interference in khan academy.They have explained it well very clearly

So for frequencies,the light will simply pass through the metals rather than being reflected so there will be deviations for UV,X rays,gamma rays,etc,right?

https://eng.libretexts.org/Core/Materials_Science/Optical_Properties/Metallic_Reflection According to this article,metals are good reflectors at low frequencies.What about at high frequencies like visible or UV spectrum?Will this show deviation