1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jekas [21]
3 years ago
15

14. As the moles of salt added are increased, what happens to the melting point of the water?

Chemistry
2 answers:
xenn [34]3 years ago
5 0

As I read and learned somewhere Oct 22, 2007, said this information— Salt lowers the freezing/melting point of water, so in both cases, the idea is to take advantage of the lower melting point. Ice forms when the temperature of the water reaches 32 degrees Fahrenheit (0 degrees Celsius).

Vika [28.1K]3 years ago
3 0
Salt lowers the freezing/melting point of water, so in both cases the idea is to take advantage of the lower melting point. Ice forms when the temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius).
You might be interested in
The mass ratio of hydrogen to oxygen in water (formula H20) is 0.126 g hydrogen for every 1 g of oxygen. In another compound of
poizon [28]

Answer: H2O2

Explanation:

5 0
2 years ago
A chemical test has determined the concentration of a solution of an unknown substance to be 2.41 M. a 100.0 mL volume of the so
Oksana_A [137]

Answer : The molar mass of unknown substance is, 39.7 g/mol

Explanation : Given,

Mass of unknown substance = 9.56 g

Volume of solution = 100.0 mL

Molarity = 2.41 M

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

\text{Molarity}=\frac{\text{Mass of unknown substance}\times 1000}{\text{Molar mass of unknown substance}\times \text{Volume of solution (in mL)}}

Now put all the given values in this formula, we get:

2.41M=\frac{9.56g\times 1000}{\text{Molar mass of unknown substance}\times 100.0mL}

\text{Molar mass of unknown substance}=39.7g/mol

Therefore, the molar mass of unknown substance is, 39.7 g/mol

5 0
3 years ago
Which of the following states that an orbital can contain two electrons only if all other orbitals at that sublevel contain at l
Vesnalui [34]
Isn't that Hund's rule????

5 0
3 years ago
Strike anywhere matches contain the compound tetraphosphorus trisulfide, which burns to form tetraphosphorus decaoxide and sulfu
erica [24]

Answer:

194.6 mL of SO₂

Explanation:

The reaction that takes place is:

P₄S₃ + 6O₂(g) → P₄O₁₀ + 3SO₂(g)

<u>To solve this problem we need to use PV=nRT</u>, so first let's convert the given units:

  • 23.8 °C → 23.8 + 273.15 = 296.95 K
  • 747 torr → 747/760 = 0.983 atm

We need to calculate V, so in order to do that we calculate n, using the mass of the reactant (P₄S₃):

0.576 g P₄S₃ * \frac{1molP_{4}S_{3}}{220gP_{4}S_{3}} *\frac{3molSO_{2}}{1molP_{4}S_{3}} = 7.85 * 10⁻³ mol SO₂ = n

  • Now we calculate V:

PV=nRT

0.983 atm * V =  7.85 * 10⁻³ mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 296.95 K

V = 0.1946 L

  • Finally we convert L into mL:

0.1946 * 1000 = 194.6 mL

8 0
3 years ago
The moon makes light the same way that the sun does.True or False
lesya [120]

Answer: false

Explanation:

7 0
3 years ago
Other questions:
  • How does the chemical formula relate to the number of particles that result from the dissociation of molecule?
    9·1 answer
  • Calcium phosphorus magnesium and fluoride mainly serve as structural components of
    9·1 answer
  • As a new mechanical engineer for Engines Inc., you have been assigned to design brass pistons to slide inside steel cylinders. T
    7·1 answer
  • what is the approximate ph at the equivalence point of a weak acid-strong base titration if 25 ml of aqueous formic acid require
    10·1 answer
  • Can 50g of NaCl dissolve in 100 g of water at 60 C?*
    10·1 answer
  • A student fills her burette with NaOH to the 2.5 mL mark. She titrated her sample of the NaOH until she reaches the endpoint (i.
    6·1 answer
  • The reaction          3 BrO- (aq) --&gt; BrO3- (aq) + 2 Br - (aq) in basic solution is second order in BrO-(aq) with a rate cons
    14·1 answer
  • Victor pours 100 grams of oil into a beaker filled with 1,000 grams of water. What is the total mass of his mixture?
    7·1 answer
  • Which of the following hydrocarbons will be the most acidic?
    10·1 answer
  • What is the 3 planet
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!