chemistry

im given the refractive index values of two - isobutyl bromide (1.3785) and isobutyl chloride (2.4368).

the solution's refractive index is 1.3931.

determine the molar composition (%).

im not sure how to get the concentrations of Br and Cl.

i have this so far-

100 * 1.3931= [Br] * 1.4368 + 1.3785 * [Cl]

thanks!

  1. 👍
  2. 👎
  3. 👁
  1. Yes, and the second equation is that the sum of both percents is 100. So replace the percent Cl with (100-Br), and solve for Br percent.

    1. 👍
    2. 👎
    👤
    bobpursley
  2. Am I missing something here?
    I get a negative number. Isn't it supposed to be
    100*1.3931 = 1.3785*Br + 1.4368*Cl

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    when chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give bromine a red brown liquid and sodium chlorine. A solution was made by dissolving 20.0g of sodium bromide in 100.0 g of water. After

  2. science

    How do I solve this "Aqueous iron(II) chloride reacts with aqueous lithium bromide to form aqueous iron(II) bromide and aqueous lithium bromide."

  3. Physicis

    What is critical angle of refractive index is 1.5

  4. chem 11

    if we mix 25 g of sodium bromide with a large amount of potassium chloride, what will our theoretical yield of sodium chloride be? NaBr+KCL->NaCl+KBr how do you calculate theoretical yield?

  1. Chem

    18) Chlorine reacts with potassium bromide to produce potassium chloride and bromine. A) write a chemical equation, using words, to represent the above chemical reaction. My answer: chlorine + potassium bromide ==> potassium

  2. physics

    if a super dense material with a refractive index of 1.76 x10^7 what is the speed of light in this material

  3. OChem

    A solution consisting of water and ethanol is found to have a refractive index of 1.3541 at 20 degrees C. The refractive indices at 20 degrees C of water and ethanol are 1.3330 and 1.3610, respectively. Determine the molar

  4. Help!! With 2 math questions!!

    There are 36 inches in one yard. How many yards and inches are there in 3785 inches? I need the yards, and inches! The next question is....Find the number of quarts in 73,458 cubic inches of water. There are 231 cubic inches in 1

  1. physics

    Given a slab with refractive index n=1.33 and incident light striking the top horizontal face at angle i.The maximum value of i for which total internal reflection occurs is:

  2. Chemistry2

    12.) Chlorine reacts with potassium bromide to produce potassium chloride and bromine. a.) write a chemical equation, using words, to represent the above chemical reaction. Answer: Chlorine + potassium bromide ==> potassium

  3. science

    what is the general trend of the critical angle as the refractive index increases?

  4. chemistry

    A solution containing 40 g of calcium bromide requires 14.2 g of chlorine to react completely with it and 22,2 g of calcium chloride is produced in addition to ehaever bromine is obtained. How many grams of calcium bromide are

You can view more similar questions or ask a new question.