Question

How many grams of NaCl(s) should be dissolved in one liter of water to make a 0.250 M solution of Na+?

Answer #1

Mellissa dissolves 26. grams of NaF with water to make a 199. mL
solution. What is the molarity of the solution? There are 1,000 mL
in 1 L.
Tamara has 107 g of a NaCl solution that has
concentration of 4.5 % NaCl (m/m). How many grams of NaCl are
dissolved in that solution?

How many grams of NaCl would need to be added to 6001 g of water
to increase the boiling temperature of the solution by 1.500 °C?
(Kb for water is 0.5100 °C/m)

How
many grams of NACL molecular weight (58.44) is needed to make 2.5 L
of a 0.4 M solution ?

1. How many grams of K2SO4 and how many grams of water are
rwquired to make 250.0g of a 0.2000 m solution? (Hint: First find
m/m% K2SO4 in a 0.2000 m solution)
2. What is the mole fraction of K2SO4 in an 8.60% (m/v) aqueous
solution of K2SO4?
3. If drinking water contains 1 ppm of fluoride, what is the
molarity of F- in the water? How many grams of NaF would be
required for a day's worth of water...

A cell has a concentration of non-permeable solutes of 310
mOsmoles/liter. Molecular weights are : NaCl = 58, Glucose= 180,
Urea=60. Cell membranes are not permeable to NaCl and glucose, but
are permeable to urea.
you have 1 liter of a 11.16% glucose solution. How many grams of
NaCl or ml of water must you add to it to make the solution as
isotonic?

A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was
dissolved in water. The resulting solution required 54.50 mL of
0.08765 M AgNO3(aq) to precipitate the Cl−(aq) and Br−(aq) as
AgCl(s) and AgBr(s).
Calculate the mass percentage of NaCl(s) in the mixture.
Mass Percentage:__________________

A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was
dissolved in water. The resulting solution required 47.50 mL of
0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as
AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in
the mixture.

A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was
dissolved in water. The resulting solution required 47.20 mL of
0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as
AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in
the mixture.

A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was
dissolved in water. The resulting solution required 43.30 mL of
0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as
AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in
the mixture.

A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was
dissolved in water. The resulting solution required 35.30 mL of
0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as
AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in
the mixture.

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