1. Questions

Chemistry

Assuming that sea water is a 3.5 wt % solution of NaCl in water, calculate its osmotic pressure at 20°C. The density of a 3.5% NaCl solution at 20°C is 1.023 g/mL.

  1. 👍
  2. 👎
  3. 👁
Bob

  1. 3.5% NaCl = 3.5 g NaCl/(3.5g NaCl + 96.5g H2O).
    Convert 96.5g H2O to mL using the density.
    Calculate M (= moles/L) from 3.5 g NaCl in ?? mL H2O and plug in M for equation
    pi = i*M*RT
    i for NaCl will be 2. Post your work if you get stuck.

    1. 👍
    2. 👎
    DrBob222

  2. first y

    1. 👍
    2. 👎
    jen

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 47.40 mL of 0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as AgCl(s) and AgBr(s). Calculate the mass

  2. Chemistry

    A 2.559 9 pellet containing NaCl and KCl is dissolved in water. A silver nitrate solution is mixed with water containing the pellet, and a precipitate forms. The precipitate is separated and dried and found to have a mass of 5.112

  3. chemistry.

    What is the concentration (M) of a NaCL solution prepared by dissolving 9,3g of Nacl in sufficient water give 350ml of solution?.Any idea???

  4. Chemistry

    Information beforehand: mass of weighing vial + NaCl / g 16.2597 mass of “empty” weighing vial / g 14.8136 mass of NaCl used / g Final volume of solution / L 0.2500 Questions: 1) Calculate the concentration of the NaCl

  1. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous

  2. Grade 12 chemistry

    This is the second reaction: HCl(aq)+NaOH(aq)-->NaCl(aq)+H2O(l) (Heat of neutralization) This reaction involves mixing two solutions: 1.00 mol/L NaOH and 1.00 mol/L HCl. Trial 1: 48.0 mL of the NaOH solution is mixed with 47.5 mL

  3. Chemistry

    Given that the solubility of sodium chloride is 36 grams per 100 grams of water. Which of the following solutions would be considered supersaturated? A. dissolve 5.8 moles of NaCl in 1 L of water B. dissolve 1.85 moles of NaCl in

  4. Physics

    You decide to take a nice hot bath but discover that your thoughtless roommate has used up most of the hot water. You fill up the tub with 270 kg of 30.0°C water and attempt to warm it further by pouring in 5.00 kg of boiling

  1. chemistry

    A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was

  2. Chemistry

    Calculate the mass/volume percent of a NaCl solution in which 182g of NaCl is dissolved in enough water to give a total volume of 4.78L . Would I do 182/4780ml *100?

  3. Chemistry

    When sodium chloride, NaCl, is added to water, it forms a solution. Rank the steps involved in the dissolution of salt in water from first step to last step. To rank items as equivalent, overlap them. a.) NaCl crystal is added to

  4. Chemistry

    Sea water contains an average of 1.08 x 10^3 ppm of Na+ ion. Calculate the molar concentration of Na+ given that the average density of sea water is 1.02 g/ml.

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