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
Ket [755]
3 years ago
11

Assuming the density of the wine to be 1.0 g/ml, what caloric content does the alcohol (ethanol) in a 6-oz glass of wine (177 ml

) have? express your answer using two significant figures.
Physics
2 answers:
posledela3 years ago
8 0

Answer:

The answer is 133.06 kcal.

Explanation:

having the data:

mw=mass of wine=177 g

me=mass of ethanol=(10.6/100)*177=18.76 g

ne=moles of ethanol=0.408 moles

qe=caloric content=1367*((0.106*177)/(46.07))=556.7 kJ=133.06 kcal

viktelen [127]3 years ago
4 0

mass = 177 x 1.0 g/mL= 177 g mass ethanol = 177 x 10.6/100 = 18.8 g moles = 18.8 g/46.069 g/mol = 0.408 1367 kJ/mol x 0.408 mol= 557.9 kJ

You might be interested in
When you push a child on a swing, your action is most effective when your pushes are timed to coincide with the natural frequenc
OleMash [197]

Answer:

T = 4.48 s

we can see that this time period is independent of the mass of the child so answer would be same if the child mass is different

Explanation:

Natural frequency of a simple pendulum of L length is given as

f = \frac{1}{2\pi}\sqrt{\frac{g}{L}}

so the time period of the oscillation is given as

T = 2\pi \sqrt{\frac{L}{g}}

so we will have

L = 5 m

T = 2\pi\sqrt{\frac{5}{9.81}}

T = 4.48 s

also from above formula we can see that this time period is independent of the mass of the child so answer would be same if the child mass is different

3 0
3 years ago
A charge of 12c passes through an electroplating apparatus in 2 min, what is the average current? ​
ryzh [129]

Answer:

Explanation:

If I am not wrong

current = charge/time

All you have to take care of is the units should be in the same system

so

current = 12/(2*60)         ---------  2 min = 2*60 sec

current  = 12/120  = 0.1 amp

8 0
3 years ago
Question 2 (1 point)
eduard

Answer: Blake may have a decreased chance of disease.

Explanation:

Research has shown that on average, a person who engages in more physical activity will live longer than a person who does not with one reason for this being that engaging in physical activity helps reduce the risk of diseases such as; heart disease, diabetes, and many forms of cancer.

Obesity (risk factor) and high blood pressure are also reduced by engaging in physical activity.

6 0
3 years ago
Two blocks with different temperatures had entropies of 10 J/K and 30 J/K before they were brought in contact. What can you say
True [87]

Answer:

a. Ssystem  > 40 J/K

Explanation:

Given that

The entropy of first block = 10 J/K

The entropy of second block = 30 J/K

When two bodies come into contact with each other, the entropy of the combined system will increase and the entropy sum remains unchanged: According to the Second law of thermodynamics.The entropy of the system will be greater than 40  J/K.

Therefore the answer is a.

Ssystem  > 40 J/K

6 0
2 years ago
A cool down is considered the activity performed
tangare [24]

did you mean what activities are performed during the cool down?

5 0
3 years ago
Other questions:
  • Compared to the density of liquid water, the density of an ice cube is
    8·2 answers
  • Which of the following is used in Sonata II's prepared piano?
    11·1 answer
  • Kissa and Lily ran a race in gym class Lily was off balance so she did not start until 2 seconds had passed
    9·1 answer
  • What is the acceleration of this object? The object's mass is 60 kg.
    13·2 answers
  • What process occurs when all of the energy from light waves is transferred to a medium?
    10·2 answers
  • Explain what dispersion is and how astronomers use this phenomenon to study a star’s light.
    11·1 answer
  • How many calories are absorbed by a pot of water with a mass of 500g in order to raise the temperature from 20c to 30c?
    7·1 answer
  • When the plastic coating around a cord is damaged, why does the cord become hazardous?
    9·1 answer
  • What is the magnitude of the electric field at the point if the electric potential in the region is given by V 2.00xyz2, where V
    13·1 answer
  • Determine the magnitude and direction of the resultant force of the following free body diagram.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!