Calculate the ratio of moles of acid to moles of base to create a 750 mL buffer solution with pH = 4.2 using acetic acid, CH3OOH, and acetate CH3COO. The ka for acetic acid is 1.8 x 10^(-5)

Calculate the ratio of moles of acid to moles of base to create a 750 mL buffer solution with pH = 4.2 using acetic acid, CH3OOH, and acetate CH3COO. The ka for acetic acid is 1.8 x 10^(-5)

The given volume is 60 in3. That’s it.

Determine the specific solution of the following initial-value problems. y''+ 4y' + 20y = 0, y(pi/2)=0 and y'(pi/2)=2

1/4 of year = . Something

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Suppose h(x)=f(g(x)), h(x)=(2x+1)^3, and f(x)=x^3. What is g(x)?

1. Solve the equation 1/3 (-6x+12)-4x=32-1/2 (8x-16). Check your answer Show all of your work. I recently caught some kind of flu and was told to stay off of my feet for a while...

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''the figure below shows cuboidal cells making up the lining of a kidney tuble'' ''the cuboidal cell is a perfect cube and the height of one side is 0.001mm,calcualte the surface...

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Im not sure how to answer this problem and also can you answer quick because it is for homework. Also I need a tutor so this is a great website!

If 270º <x< 360º , show that √(2+√(2+2cosx)) = 2 sin x/4. Thank You! :)

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triangle DEF and triangle QRS are right triangles. If Δ DEF is simular to Δ QRS, and m<EFD= 65°, which of the following angles also has a mesure of 65°?

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A flag pole stands at a right angle to the horizontal at the bottom of a slope.The slope has an incline of 8 degrees with the horizontal.The flag pole casts a 20 meter long shadow up the slope.The...

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√x(√x^5 - √4x)

two people are 150 feet apart and looking up at the top of a tower.One observer is located at point a which is 40 degrees.and the other is at point B which is 32 degrees.Determine the height of the...