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
maks197457 [2]
2 years ago
15

15 POINTS!! does anyone know the answer to this? is it A?

Chemistry
2 answers:
Norma-Jean [14]2 years ago
7 0

Answer:

b.2

Explanation:

lakkis [162]2 years ago
5 0

Answer:

Mole fraction of water(H₂O) is 0.5 and the mole fraction of CH₃OH(Methanol) is 0.5.

Explanation:

Greetings !

The molecular weight of CH₃OH(Methanol)=32g/mol

The number of moles of CH₃OH=

\frac{128g}{32g/mol}

=4moles

The molecular weight of water H₂O =18g/mol

The number of moles of=

\frac{72g}{18g/mol}

=4moles

Total number of moles in the solution =4mol + 4mol

=8mol

Mole fraction Methanol CH₃OH=

\frac{4mol}{8mol}

=0.5mol

Hope it helps!

You might be interested in
What happens to the matter in the body of an animal after it dies
sladkih [1.3K]
The matter will be consumed by other living organisms and the blood will settle to the bottom of the body
4 0
3 years ago
How does the volume of water change the solubility of sodium chloride in simple words?
kupik [55]

Answer:

When sodium chloride dissolves in water to make a saturated solution there is a 2.5 per cent reduction in volume. ... The solubility of salt does not change much with temperature, so there is little profit in using hot water.

3 0
3 years ago
A gas occupies a volume of 160 ml at 36° C and 970mm Hg. What is the volume at STP?
igor_vitrenko [27]

Answer:

I'm sorry I just need points

Explanation:

7 0
3 years ago
What is the velocity of a 0.5-kg ball<br> that has a momentum of 3 kg.m/s?
maria [59]

Answer:

6m/s

Explanation:

Data obtained from the question include:

Mass = 0.5kg

Momentum = 3 kg.m/s

Velocity =.?

Momentum is simply the product of mass and velocity as shown by the equation below:

Momentum = Mass x Velocity

Velocity = Momentum /mass

Velocity = 3kg.m/s / 0.5kg

Velocity = 6m/s

Therefore, the velocity of the ball is 6m/s

3 0
3 years ago
Helpppppppppppppppppp
lara [203]
Pb + Mg(NO₃)₂   →    Pb(NO₃)₂  +  Mg
This reaction would NOT occur because Pb is less reactive than Mg and as such Pb cannot displace the Mg in order for the reaction to occur under normal conditions.


Mg  +  Fe(NO₃)₂   →   Fe  + Mg(NO₃)₂
This reaction would occur. This is because Mg is more reactive than Fe and as such can displace it in the reaction, thus allowing the reaction to occur under normal conditions.


Cu + Mg(NO₃)₂   →   Cu(NO₃)₂  +  Mg
This reaction would NOT occur. Mg is more reactive than Cu, and as such copper cannot displace magnesium in order for the reaction to occur under normal conditions.
3 0
3 years ago
Other questions:
  • 500.0 ml of 0.110 m naoh is added to 535 ml of 0.250 m weak acid (ka = 6.37 × 10-5. what is the ph of the resulting buffer?
    10·1 answer
  • What is the activation energy of a reaction whose rate constant doubles when the temperature is increased from 300K to 350K (ass
    7·1 answer
  • The molar masses of three gases, A, B, and C, are 4 grams, 16 grams, and 32 grams respectively. Which sentence represents the ef
    9·2 answers
  • The following data is given to find the formula of a Hydrate:
    12·1 answer
  • You wish to prepare a tape-casting slip containing 50 vol% Al2O3 and 50 vol% polyvinyl butyral (PVB) binder. If the density of A
    9·1 answer
  • Who discovered the flame test
    6·1 answer
  • Hi what is 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
    10·1 answer
  • AnonymousXDX can you answer this question to
    7·1 answer
  • How many moles of PCl5 can be produced from 53.0 g of Cl2 (and excess P4)?
    14·1 answer
  • Describe at least four properties of electrons that
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!