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
nadezda [96]
2 years ago
5

Hi, please I need help

Chemistry
1 answer:
stellarik [79]2 years ago
5 0

The mass of ethanol (alcohol) = 538.016 g

<h3>Further explanation</h3>

Given

Reaction

C₁₂H₂₂O₁₁(aq)+H₂O(I) = CH₃CH₂OH(aq)+CO₂(g)

1 kg of sugar = 1000 g

Required

The mass of ethanol

Solution

Balanced equation

C₁₂H₂₂O₁₁(aq)+H₂O(I) = 4CH₃CH₂OH(aq)+4CO₂(g)

mol of sugar (MW = 12.12+22.1+11.16=342 g/mol) :

mol = mass : MW

mol = 1000 g : 342 g/mol

mol = 2.924

From the equation, mol ratio of C₁₂H₂₂O₁₁ : CH₃CH₂OH = 1 : 4, so mol ethanol =

= 4 x mol sugar

= 4 x 2.924

= 11.696

Mass of ethanol(MW=46 g/mol) :

mass = mol x MW

mass = 11.696 x 46

mass = 538.016 g

You might be interested in
Complete this equation for the dissociation of na2co3(aq). omit water from the equation because it is understood to be present.
Elanso [62]
Note that we are omitting the water.

So, sodium carbonate will basically dissociate into positive sodium ions and negative carbonate ions based on the following equation:
 <span>Na2CO3 → 2 Na(+) + CO3(2-)
</span>
If we took water into consideration:
Sodium carbonate will dissociate in water forming carbonic acid and sodium hydroxide. Since sodium hydroxide is a strong base, therefore, it will then neutralize the gastric acid, thus, acting as an antacid.
7 0
3 years ago
Read 2 more answers
The mass of 100cm3 of water is 100 g. Use the formula to calculate its density.
yanalaym [24]

Answer:

It should be 1 g/cm3. Hope this helpd!

4 0
3 years ago
Read 2 more answers
How many calories is 52 J of energy?
just olya [345]

Answer:

1J = 0.238846cal

52J = 12.42cal

5 0
3 years ago
1. Round each of the following numbers to four significant figures, and express the result in scientific notation:
vfiekz [6]

The rounding up of the aforementioned number to four significant figures is as follows: 3.002 × 10²

<h3>What are significant figures?</h3>

Significant figures are figures that contribute to the general and overall value of the whole number.

Significant figures or digits are specifically meaningful with respect to the precision of a measurement.

Although, the original number given in this question has 9 significant figures, the number; 300.235800 can be rounded up to four significant figures as follows:

  • Decimal notation: 300.2
  • No. of significant figures: 4
  • No. of decimals: 1
  • Scientific notation: 3.002 × 10²

Therefore, the rounding up of the aforementioned number to four significant figures is as follows: 3.002 × 10².

Learn more about significant figures at: brainly.com/question/14359464

#SPJ1

3 0
1 year ago
The gram molecular mass of co2 is the same as the gram molecular mass of ?
kari74 [83]
The answer is 1. CO. A gram-molecular mass is defined as mass in grams numerically equal to the molecular weight of a substance or the sum of all the atomic masses in its molecular formula. Since CO2 and CO has both carbon and oxygen, the gram-molecular mass does not change. For a compound with carbon and oxygen, the molecular mass comes respectively from 12 (atomic mass of carbon) + (2 × 16) (atomic mass of oxygen), which is 44 g.
3 0
3 years ago
Read 2 more answers
Other questions:
  • hi friends my brain is mentally challenged so therefore i need someone to help with my science hw bc it’s 4 in the morning and i
    6·2 answers
  • 3. Ifthe50.00mLsamplefromproblem2abovewastitratedwitha0.00505MEDTA, what volume (in milliliters) of EDTA solution would be neede
    15·1 answer
  • What are the important points that we consider before using chemical fertilizer?<br>​
    11·1 answer
  • If you weigh 100 kg, how much would you weigh if all the water were removed from your body? A65 kg B45 kg C50 kg D35 kg
    9·1 answer
  • A sample of gas is at 273°K and 2.00 atm with a volume of 6.00 liters. When the gas is compressed to 3.00 liters and the pressur
    7·1 answer
  • An object resting on a table weighs 100 N. With what force is the object pushing on the table? With what force is the table push
    12·1 answer
  • The enthalpy of vaporization of a certain liquid is found to be 14.4 kJ mol-1 at 180 K, its normal boiling point. The molar volu
    15·1 answer
  • (7th grade science question)
    13·1 answer
  • 14. Replacing oil and coal with plant-matter as a source of energy would
    9·1 answer
  • The scientific method is series of six steps used to answer questions or investigate
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!