# Scient

(NaCl) solutions used in intravenous injections have a concentration of 0.90% NaCl (mass/volume).

4.5grams of NaCl are needed to prepare 500.0 mL of this solution

How much water must evaporate from this solution to give a solution that is 9.0% NaCl (mass/volume)?

1. 0
2. 0
3. 53
1. a mL of water is a gram

4.5 / x = .09

x = 50 grams water remains

so 450 grams evaporated

1. 0
2. 0
posted by Damon

## Similar Questions

1. ### chemistry

Physicain elects to re-hydrate the patient br intravenous(IV) administration of 2.0 L of 0.45% (w/v) of NaCl. 0.45%9w/v) = 0.45g/100ml A.How many grams of NaCl were given? B.How many moles of Nacl were given? C.What is the

asked by Monica on May 13, 2013
2. ### CHEMISTRY

1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it

asked by Allison on February 3, 2017
3. ### Chemistry

1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it

asked by A on February 3, 2017
4. ### chemistry

If you know that the mass concentration of a NaCl solution is 58.5 g/L, the molar concentration (mol/L) of the solution is ? can sum1 help me plz 1 mol of NaCl has a mass of what? 58.5 g NaCl x (1 mol NaCl/molar mass NaCl) = mols

asked by brett on June 14, 2006
5. ### chemistry

Kc = [Na+][Cl-]/[NaCl(s)] The above equation contains the concentration of NaCl in solid NaCl. This concentration is related to the density of solid NaCl and its molar mass. Since the density of NaCl or of any pure solid or pure

asked by jessica on July 21, 2009
6. ### Chemistry

Suppose the osmotic pressure of blood at 37 °C is 7.65 atm and you are preparing an intravenous (IV) NaCl solution for a patient. What concentration (in M) of NaCl solution should you prepare so the resulting IV solution is

asked by Lola on May 2, 2016
7. ### Chemistry

Suppose the osmotic pressure of blood at 37 °C is 7.65 atm and you are preparing an intravenous (IV) NaCl solution for a patient. What concentration (in M) of NaCl solution should you prepare so the resulting IV solution is

asked by Lola on May 1, 2016
8. ### chakraborty

arrange the following solutions in order of decreasing specific conductance 0.01 M NaCl,0.05 M NaCl,0.1 M NaCl, 0.5 M NaCl

asked by Raja on May 12, 2016
9. ### chemistry

1.what is the volume of NaCl in cubic cm and cubic nm if the Length is 0.563 nm? 2. the density of NaCl is 2.17 g/cm. What is the Mass? 3. Each repeating unit is composed of 4 NaCl molecules. What is the Mass of 1 NaCl molecule?

asked by andi on August 20, 2011
10. ### CHEMESTRY

Which of the following solutions would have the lowest boiling point? A.1.0 M NaCl B.2.0 M NaCl C.3.0 M NaCl D.4.0 M NaCl

asked by SANDRA on November 3, 2011

More Similar Questions