Recent content by Complexity

Homework Statement http://img704.imageshack.us/f/helpppp.png/ Homework Equations The Attempt at a Solution I know e^(x) = 1 + x + x^(2)/2! + ... But if you multiply that by (x^(4))+4x^(3)) How do you know what bn and a is?

Where do I start?

Homework Statement 0.00116 moles of a weak monoprotic acid was dissolved in 25.0 mL in water. This solution was titrated with 10.0 mL of 0.0633 M NaOH. What are the concentrations of HA and A- at this point in concentration? Homework Equations The Attempt at a Solution

Homework Statement http://img842.imageshack.us/i/cusersbenappdatalocalte.png/ Homework Equations The Attempt at a Solution The work is inside the link. I am just wondering how 4.09 grams is obtained? Like how did the person know to take out 4.09 grams?

Homework Statement 0.3106 g of an iron-containing compound yield 0.07017 g Fe2O3 upon oxidation. What is the mass percent of the iron in the compound?? Homework Equations stoichiometry? The Attempt at a Solution (0.07017 g Fe203)(1 mole Fe2O3/ 159.7 g Fe2O3)(2 moles Fe/1 mole...

Homework Statement The area between the y-axis and the line y = x + 1 from y = 2 to y = 4 is rotated about the x-axis. Use the shell method to find the area of the resulting solid. Homework Equations V = 2pi integral (radius)(height of shell) dx or dy The Attempt at a...

So you're saying if (1.182 g/mL)(1000ml/1L) = 1182 grams are in 1 liter of solution?

Homework Statement A solution is prepared by adding enough water to 185 grams of CsCl to form 1 liter of solution. What is the mass of the solution? The density of the solution is 1.182 g/mL. Homework Equations D= m/v The Attempt at a Solution D= 1.182 g/mL ----> 185 g CsCl /...

Homework Statement (Cos[x]^2) (Tan[x] + Cot[x]) Simplify the equation by hand! Homework Equations The Attempt at a Solution cos^2 / (tan + cot) cos^2 / (sin/cos + cos/sin) * sin*cos/(sin*cos) sin*cos^3 / (sin^2 + cos^2) sin*cos^3 / 1 sin(x) * cos^3(x) this is wrong b/c i divided it... NVM...

Your right! This is such a hard decision...AH! Don't get me wrong, I would love to be a chemical engineer, but the works of physics just lure me in. The only reason I am hesitating of becoming a physicist is that I'm worried about the job security, and about the future of the U.S...

So it's possible for me to pursue a graduate study in physics even with a bachelor degree in chemical engineering? I admire your passion for physics!

This is my question too! Does anyone care to answer?

I am in a dilemma. Next fall I will be attending a university (as a freshman), and will be majoring in chemical engineering. Now my question is, I really LOVE physics, and how it relates to the real world. Is there anyway that I can pursue physics later in my career after I received a...