# Chemistry

if 12.8g of NaCl is added to 243.2 mL of water (density (1.00g/mL)). the volume occupied by the solution is 250.0 mL. Calculate the density of the salt water.

1. Volfor nacl(solute)=v of solution - v of water(solvent
=250.0 - 243.2
= 6.80mL

Density (salt )= mass/ volume
=12.8/6.80
=1.88 g/mL

posted by Ayanda
2. density salt water = mass salt water/volume salt water.

mass salt water = 243.2 + 12.8 = 256.0 g.
volume salt solution = 250.0
density = mass/volume = 256.0/250.0 = 1.02 g/mL

posted by DrBob222
3. 22,342

posted by Anonymous
4. 1.99 is not right.
22,342 is not right.

posted by DrBob222
5. 24.332

posted by james
6. I should have said 1.88 is not right.
24.332 is not right either. If you want to show your work I'll find the error for you. You would need over 6000 grams NaCl in 250 cc solution to have a density of over 24.

posted by DrBob222

First Name

## Similar Questions

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
2. ### 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
3. ### Physics

Salt water is poured into a U tube until it stands 0.250 m high in each arm. Oil is then added slowly to one arm until the salt water in the other arm stands 0.300 m high. The free surface of the oil then stands at 0.321 m high.
4. ### chemistry

Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water, determine the constants m and b in the equation Molarity = m⋅density + b that relates the NaCl molarity to the
5. ### chemistry

1. a) 50ml of water at 46.9°C were mixed with 50ml of water at 25.1°C in a calorimeter also at 25.1°C. The final temperature was 30.1°C. Assuming that neither the density of water nor its specific heat capacity change with
6. ### chemistry

The density of liquid water is 0.997 g/mL at 25 degrees Celsius. a) Calculate the mass of 250.o mL (about a cupful) of water. b) How many moles of water are in 250.0 mL of water? Use the result from letter a. c) Calculate the
7. ### chemistry

10g of nacl were added to 10ml of water. the resulting solution was diluted to be a final volume of 250ml. Given the density of the solution is 0.9864g/ml. Calculate the molality of the solution. Who helps
8. ### physics

a) what is the density of a log floating in salt water if 42% of its volume is exposed? The density of salt water is 1025 kg/m^3 (b) What is the density of a sample of metal that sinks in water at 7.2 m/s^2
9. ### science

this is a follow up question from my last one with the exact question If you dissolve 200 g of salt in 20 l of water, what is the density of that solution of salty water? Hint: In this particular example, assume that the total
10. ### chemistry

When 24.30mL of .5 M H2SO4 is added to 24.30 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the

More Similar Questions