Question

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)

Answer #1

Assuming complete dissociation of the solute, how many grams of
KNO3 must be added to 275 mL of water to produce a solution that
freezes at −14.5 ∘C? The freezing point for pure water is 0.0 ∘C
and Kf is equal to 1.86 ∘C/m ANSWER=109 g PART B NEEDED: If the
3.90 m solution from Part A boils at 103.45 ∘C, what is the actual
value of the van't Hoff factor, i? The boiling point of pure water
is 100.00...

How many grams of NaH4Cl need to be added to 1.80L of a 0.0500M
solution of ammonia NH4, to prepare a buffer solution that has a pH
of 8.76? Kb for ammonia is 1.8*105- . Any help would
be great!

How many grams of dry NH4Cl need to be added to 1.80 L of a
0.400 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.83? Kb for ammonia is 1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.20 L of a
0.500 M solution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.62? Kb for ammonia is
1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.00 L of a
0.300 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.64? Kb for ammonia is 1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.10 L of a
0.700 M solution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.57? Kb for ammonia is
1.8×10−5.

How many grams of dry NH4Cl need to be added to 1.60 L of a
0.800 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.81? Kb for ammonia is 1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.50 L of a
0.500 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.69? Kb for ammonia is 1.8×10−5?

How many grams of dry NH4Cl need to be added to 2.50 L of a
0.700 M solution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.56? Kb for ammonia is
1.8×10−5.
Express your answer numerically in grams to three significant
figures.

The average person adds roughly 14 grams of NaCl (58.4 g/mol) to
3.5 L of water when cooking pasta. This increases the boiling boint
of water. We know that the rates of reaction are related to
temperature. What is the relative rate of pasta cooking in pure
boiling water, boiling salt water (14 g / 3.5 L), and boiling
saturated aqueous NaCl solution?

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