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
weeeeeb [17]
1 year ago
14

The liquid hydrogen/oxygen rocket will burn for about 8 minutes at a rate of 90,000 gallons of liquid hydrogen per minute. The d

ensity of liquid hydrogen is 70.85 g/L. How many moles of water vapor will be generated during the 8 minute burn of this rocket?
Chemistry
1 answer:
kap26 [50]1 year ago
6 0

The number of moles of the water that was evaporated is  12083467.5 moles of water.

<h3>What moles of water is evaporated?</h3>

We know that the number of moles that we have can be gotten as the ratio of the mass to the number of moles of the object. Now we know that from the question, we have the volume of the hydrogen to be 90,000 gallons. We have to convert this volume to liters.

Given that;

1 gallon = 3.79 L

90,000 gallons  = 90,000 gallons  * 3.79 L/1 gallon

= 341100 L

Then we have the density of the hydrogen to be 70.85 g/L

Mass of the hydrogen =  70.85 g/L *  341100 L

= 24166935 g

Number of moles of the hydrogen reacted = 24166935 g/2 g/mol

= 12083467.5 moles

If 2 mole of hydrogen gives 2 moles of water

12083467.5 moles of hydrogen gives 12083467.5 moles of water

Learn more about formation of water:brainly.com/question/9524396

#SPJ1

You might be interested in
A train in Japan can travel 813.5 miles in 5 hours
Anastaziya [24]

Answer:

162.7miles/hr

Explanation:

Given parameters:

Distance covered by the train  = 813.5miles

Time taken  = 5hours

Unknown:

Speed of the train  = ?

Solution:

Speed is a physical quantity.

It is mathematically expressed as;

      Speed  = \frac{distance}{time}

So, input parameters and solve;

   Speed  = \frac{813.5}{5}  = 162.7miles/hr

8 0
3 years ago
Could someone explain how they got this answer, explain step by step plz
gulaghasi [49]

Answer:

6.018 amu

Explanation:

Let 6–Li be isotope A.

Let 7–Li be isotope B.

Let the abundance of 6–Li be A%

Let the abundance of 7–Li be B%

The following data were obtained from the question:

Atomic mass of isotope A (6–Li) =.?

Atomic mass of isotope B (7–Li ) = 7.015 amu.

Abundance of 7–Li (B%) = 92.58%

Abundance of 6–Li (A%) = 100 – B% = 100 – 92.58 = 7.42%

Atomic mass of Lithium = 6.941amu

The atomic mass of isotope A (6–Li) can be obtained as follow:

Atomic mass = [(Mass of A x A%)/100] + [(Mass of B x B%)/100]

6.941 = [(mass of A x 7.42)/100] + [(7.015x92.58)/100]

6.941 = [(mass of A x 7.42)/100] + 6.494487

(mass of A x 7.42)/100 = 6.941 – 6.494487

(mass of A x 7.42)/100 = 0.446513

Mass of A x 7.42 = 100 x 0.446513

Mass of A x 7.42 = 44.6513

Divide both side by 7.42

Mass of A = 44.6513 / 7.42

Mass of A = 6.018 amu

Therefore, the mass of 6–Li is 6.018 amu

7 0
3 years ago
Based on the solubility chart, which of the listed salts is the most soluble at 25 degrees Celsius?
VashaNatasha [74]
I think it's Potassium iodide because it has the highest solubility at 25°C.
4 0
3 years ago
Read 2 more answers
How can you distinguish between a solution, colloid, and suspension?
RSB [31]

Answer:

solution is clear solution while colloidal is between the solution and suspension. And in suspension particles are suspended.

Explanation:

In solution light can be passed without any scattering of light from solute particles while suspension is cloudy and having larger particle size than colloids, if suspension stands for a while particles will settle down easily.

In colloids light  will scattered and dispersed by reflecting with large particles.

3 0
3 years ago
Which <br> molecule has the same shape and hybridization as methane
Korvikt [17]
Hi, the answer is <span>CF2Cl2 :)</span>
6 0
3 years ago
Other questions:
  • What is the ratio of moles of solute to liters of solution called?
    12·1 answer
  • What concentration of nh4no3 is required to make [oh− ] = 1.0 × 10−5 in a 0.200-m solution of nh3?
    6·2 answers
  • Help!! us own words, please!!
    10·1 answer
  • Help please ❤️ When O2 is added to the melted candy mixture once it has cooled. Why would it not be beneficial to add the CO2 af
    8·1 answer
  • Nuclear energy is produced when scientists force uranium (U) atoms to break apart. With this in mind, examine the list below. If
    13·2 answers
  • Use the drop-down menus to complete the<br> corresponding cells in the table to the right.
    12·2 answers
  • State the Periodic Law. Why is it so important in the study of chemistry?
    10·1 answer
  • Why is fractional distillation not used to produce drinking water from sea water?
    12·1 answer
  • 2. Pick two materials that float from the table above.
    11·1 answer
  • Pls help if you only know the correct answer! Thanks! :)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!