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
mamaluj [8]
3 years ago
15

How much energy is lost through carrying out life functions?

Chemistry
1 answer:
castortr0y [4]3 years ago
8 0
Really good question i hope to see the answer to
You might be interested in
A glass of water sitting in direct sunlight evaporates over time. Explain this phase change in terms of the types of heat transf
dybincka [34]
This is a physical phase change it is still water it just separated and became less and less.it stays water though
5 0
3 years ago
A 0.0795-g sample of magnesium metal reacts with hydrochloric acid to give 88.5 mL of hydrogen gas at 25 degree C and 766 mm Hg.
Trava [24]

Answer:

(a). 0.0037 mol.

(b). 22.42 L

(c). => When the measuring apparatus are not precise.

=> Error due to parallax.

=> Random errors.

Explanation:

Without mincing words let us dive straight into the solution to the question above. So, we are given the following parameters or information which are going to aid in solving this particular Question;

Mass of magnesium given= 0.0795 g, volume of Hydrogen = 88.5 mL = 0.0885 L, temperature = 25 degree C = 273 + 25 = 298K and pressure = 766 mm Hg = 766/760 = 1.00789 atm.

(a). In order to determine the number of moles of Hydrogen atoms,we will be making use of the formula below;

Number of moles = (pressure × Volume)/ gas constant,R × Temperature.

Thus,the number of moles of Hydrogen = 1.00789 × 0.0885 / [( 0.08206 × 298] = 0.0037 mol.

(b). The molar volume at stp can be calculated by using the same formula that was used in (a) above;

Molar Volume at stp = Gas constant,R × temperature/ Pressure = 0.08206 × 273 / 1 atm = 22.42 L.

(c). The major sources of errors are given below:

=> When the measuring apparatus are not precise.

=> Error due to parallax.

=> Random errors.

3 0
3 years ago
50 pts Plz help !!!! What is the physical state of matter of baking soda.
WITCHER [35]

Baking soda is a solid.

8 0
2 years ago
Read 2 more answers
An atom of potassium has 19 protons and 19 electrons. If the atom loses 1 electron, what will
Pani-rosa [81]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

If it loses 1 electron, it will now have 1 more proton than electrons.

Thus, the charge would be 1+

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

5 0
3 years ago
g 304 mL of a 0.36 M potassium hydroxide solution is added to 341 mL of a 0.51 M lithium hydroxide solution. Calculate the pOH o
Liono4ka [1.6K]

Answer:

<u><em></em></u>

  • <u><em>pOH = 0.36</em></u>

Explanation:

Both <em>potassium hydroxide</em> and <em>lithium hydroxide </em>solutions are strong bases, so you assume 100% dissociation.

<u>1. Potassium hydroxide solution, KOH</u>

  • Volume, V = 304 mL = 0.304 liter
  • Molarity, M = 0.36 M
  • number of moles, n = M × V = 0.36M × 0.304 liter = 0.10944 mol
  • 1 mole of KOH produces 1 mol of OH⁻ ion, thus the number of moles of OH⁻ is 0.10944

<u>2. LIthium hydroxide, LiOH</u>

  • Volume, V = 341 mL = 0.341 liter
  • Molarity, M = 0.51 M
  • number of moles, n = M × V = 0.341 liter × 0.51 M = 0.17391 mol
  • 1mole of LiOH produces 1 mol of OH⁻ ion, thus the number of moles of OH⁻ is 0.17391

<u />

<u>3. Resulting solution</u>

  • Number of moles of OH⁻ ions = 0.10944 mol + 0.17391 mol = 0.28335 mol

  • Volume of solution = 0.304 liter + 0.341 liter = 0.645 liter

  • Molar concentration = 0.28335 mol / 0.645 liter = 0.4393 M

<u />

<u>4. </u><em><u>pOH</u></em>

      pOH=-\log [OH^-]=-\log (0.439)=0.36   ← answer

5 0
3 years ago
Other questions:
  • Complete each of the definitions with the appropriate phrase. Precision means that ___________measurements are close to_________
    14·1 answer
  • How is it that when a salt sample dissolves in water, the delta S for the process is positive?
    8·1 answer
  • Nitrogen monoxide is produced by combustion in an automobile engine. What volume of oxygen gas is required to react completely w
    9·1 answer
  • When doing a titration what is the equivalency point of the neutralization reaction?
    11·1 answer
  • I have a mass of 30 grams and a volume of 60 cm3 what is the density
    15·1 answer
  • Which ion does not have a noble gas configuration in its ground state? which ion does not have a noble gas configuration in its
    12·2 answers
  • What is decarboxylation??<br><br>Gimme one reaction of it..​
    8·1 answer
  • Limitations of paper chromatography​
    11·2 answers
  • Temperature<br> What is the boiling point of hydrogen at atmospheric pressure (1.0 x 105 Pa)?
    12·1 answer
  • How many atoms of germanium<br> are present in a sample<br> containing 1.65 moles Ge?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!