Concentrationis an expression of how muchsoluteis dissolved in asolventin a chemicalsolution. There are multipleunits of concentration. Which unit you use depends on how you intend to use the chemical solution. The most common units are molarity, molality, normality, mass percent, volume percent,...
You can use any units you wish for the concentration values and volumes, so long as you use the same units for each of the two solutions. Concentration can also be expressed by percent composition by mass, mole fraction, molarity, molality or normality. For example, work out the percent co...
Convert the following percentage to grams/liter: 0.004% w/v. You are going to make 1800 ml of a 25 mu M solution using a compound whose MW = 60.06 Daltons. How many grams do you need of this compound? Give your answer with four decimal places. ...
What mass of NaCl needs to be added to 50.0 g water to make a solution having a mole fraction of solute of 0.125? How many grams of glucose would you need to add to 1 liter of water to make a 0.9% glucose solution? Use dimensional anal...
Sodium bicarbonate is a derivative of sodium carbonate, also known as baking soda. The bicarbonate version of this salt is used in a variety of applications according to Blurtit.com, including cooking, cleaning and even touted as a natural treatment for
What is the molality of a solution prepared by dissolving 1.00 moles of CaBr2 in 23.0 moles of H2O? Molarity is the number of moles of solute in 1 liter of solution. If you are given the mass of the solute, be sure to convert it to moles before calculating molarity. ...
Which of the following describe Body Mass Index? a. A quick way to measure the body fat percentage. b. A more accurate measure "body fatness" than weight alone. c. A measure of weight relative to height. Define the term motor unit. Using examples of different muscles, explain the functio...
What is the concentration of this sucrose solution expressed as a percentage (w/v)? (Express your answer to two decimal places, don't forget units to be expresse You have 1 liter of a freshly prepared 0.1 M sucrose (molecular mass 342) solution, which means __...