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
tekilochka [14]
3 years ago
11

Calculate the mass of hydrogen in 500 g of Al(C2H3O2)3

Chemistry
2 answers:
viva [34]3 years ago
4 0
<span>22.2 grams For every molecule of Al(C2H3O2)3, we have 9 atoms of hydrogen. So let's first determine how many moles of Al(C2H3O2)3 we have. So start by looking up the atomic weights of the elements involved. Atomic weight aluminium = 26.981539 Atomic weight carbon = 12.0107 Atomic weight hydrogen = 1.00794 Atomic weight oxygen = 15.999 Molar mass Al(C2H3O2)3 = 26.981539 + (12.0107 * 2 + 1.00794 * 3 + 15.999 * 2)*3 = 204.111199 Moles Al(C2H3O2)3 = 500 g / 204.111199 g/mol = 2.449645107 mol Moles H = 9 * 2.449645107 mol = 22.04680597 mol Mass H = 22.04680597 mol * 1.00794 g/mol = 22.22185761 g Rounding to 3 significant figures gives 22.2 grams.</span>
Zigmanuir [339]3 years ago
3 0
<span>Answer is: the mass of hydrogen is 22,05 grams.
m(</span>Al(C₂H₃O₂)₃)<span> = 500 g.
M</span>(Al(C₂H₃O₂)₃) = 27 + 6 ·12 + 9 · 1 + 6 · 16 · g/mol = 204 g/mol.<span>
n</span>(Al(C₂H₃O₂)₃) = m(Al(C₂H₃O₂)₃) ÷ M(Al(C₂H₃O₂)₃).
n(Al(C₂H₃O₂)₃) = 500 g ÷ 204 g/mol.
n(Al(C₂H₃O₂)₃) = 2,45 mol.
n(Al(C₂H₃O₂)₃) : n(H) = 1 : 9.
n(H) = 22,05 mol.
m(H) = 22,05 mol · 1 g/mol
m(H) = 22,05 g.

You might be interested in
Problem: If you push an object with a constant force of 100 N over a 10-meter distance. How much energy transfer occurs on the o
Sveta_85 [38]

The energy transferred on the object is 1000 Joules.

Given:

An object on which a constant force of 100 N was applied to displace it over a distance of 10 meters.

To find:

The energy transfer occurs on the object.

Solution

The force applied on the object = F = 100 N

The displacement of the object = d = 10 m

The energy transferred on the object or work done is given by:

W = F\times d\\W=100 N\times 10 m = 1,000 J

The energy transferred on the object is 1000 Joules.

Learn more about work done here:

brainly.com/question/8119756?referrer=searchResults

brainly.com/question/3951672?referrer=searchResults

8 0
3 years ago
How does salt help melt the road?​
QveST [7]

Lower the melting point

Explanation:

Salts helps to melt road by lowering the melting point. It acts as an impurity and generally, impurities low the melting point of substances.

Salts are used as an antifreeze.

  • Water freezes at 0°C and forms ice/snow which can impede human and vehicular movement.
  • When salt is added, it causes the depression of the freezing point by lowering it further.
  • The freezing point is pegged back at -6°C.
  • This way it takes more low temperature to freeze the water.
  • The salt acts as an impurity and causes the depression of melting point and widening of the melting range.

learn more:

Matter brainly.com/question/10972073

#learnwithBrainly

8 0
3 years ago
Read 2 more answers
Calculate E ° for the half‑reaction, AgCl ( s ) + e − − ⇀ ↽ − Ag ( s ) + Cl − ( aq ) given that the solubility product constant
antoniya [11.8K]

Answer: The value of E^{o} for the half-cell reaction is 0.222 V.

Explanation:

Equation for solubility equilibrium is as follows.

          AgCl(s) \rightleftharpoons Ag^{+}(aq) + Cl^{-}(aq)

Its solubility product will be as follows.

       K_{sp} = [Ag^{+}][Cl^{-}]

Cell reaction for this equation is as follows.

     Ag(s)| AgCl(s)|Cl^{-}(0.1 M)|| Ag^{+}(1.0 M)| Ag(s)

Reduction half-reaction: Ag^{+} + 1e^{-} \rightarrow Ag(s),  E^{o}_{Ag^{+}/Ag} = 0.799 V

Oxidation half-reaction: Ag(s) + Cl^{-}(aq) \rightarrow AgCl(s) + 1e^{-},   E^{o}_{AgCl/Ag} = ?

Cell reaction: Ag^{+}(aq) + Cl^{-}(aq) \rightarrow AgCl(s)

So, for this cell reaction the number of moles of electrons transferred are n = 1.

    Solubility product, K_{sp} = [Ag^{+}][Cl^{-}]

                                               = 1.77 \times 10^{-10}

Therefore, according to the Nernst equation

           E_{cell} = E^{o}_{cell} - \frac{0.0592 V}{n} log \frac{[AgCl]}{[Ag^{+}][Cl^{-}]}

At equilibrium, E_{cell} = 0.00 V

Putting the given values into the above formula as follows.

         E_{cell} = E^{o}_{cell} - \frac{0.0592 V}{n} log \frac{[AgCl]}{[Ag^{+}][Cl^{-}]}

        0.00 = E^{o}_{cell} - \frac{0.0592 V}{1} log \frac{1}{[Ag^{+}][Cl^{-}]}    

       E^{o}_{cell} = \frac{0.0592}{1} log \frac{1}{K_{sp}}

                  = 0.0591 V \times log \frac{1}{1.77 \times 10^{-10}}

                  = 0.577 V

Hence, we will calculate the standard cell potential as follows.

           E^{o}_{cell} = E^{o}_{cathode} - E^{o}_{anode}

       0.577 V = E^{o}_{Ag^{+}/Ag} - E^{o}_{AgCl/Ag}

       0.577 V = 0.799 V - E^{o}_{AgCl/Ag}

       E^{o}_{AgCl/Ag} = 0.222 V

Thus, we can conclude that value of E^{o} for the half-cell reaction is 0.222 V.

3 0
3 years ago
The mass of the sedimentary rock is equal to the mass of what
Finger [1]
It would have 018 mass balance calculation and the total of the sedimentary rock mass would like 0.76
8 0
3 years ago
Wegner's theory that the continents slowly moved over Earth's surface became known as _________ .
Thepotemich [5.8K]
Wedners <span>idea that the </span>continents slowly moved over Earth's surface became known as<span> continental drift. According to </span>Wegener<span>, the </span>continents<span> drifted together to form the supercontinent Pangaea (pan jee uh).Pangaea means “all lands.” According to</span>Wegener<span>, Pangaea existed about 300 million years ago.</span>
7 0
3 years ago
Other questions:
  • a particular application calls for N2 g with a density of 1.80 g/L at 32 degrees C what must be the pressure of the n2 g in mill
    15·1 answer
  • Determine the number of protons and neutrons in an isotope of bromine (br) with a mass number/atomic mass of 79. (the atomic num
    12·1 answer
  • A solid keeps its shape due to which of the following factors? (3 points)
    7·1 answer
  • A chemist conducted a study on ammonia NH3(g) into hydrogen gas and nitrogen gas. This reaction is represented by the following
    15·1 answer
  • If a block weighs 125 grams and it has a volume of 5 mL, what is it's density?
    14·1 answer
  • Answer the 4 questions pls
    6·2 answers
  • Balance the following SYNTHESIS chemical reaction with the correct coefficients:
    14·1 answer
  • An arctic weather balloon is filled with 38.5 L of helium gas inside a prep shed. The temperature inside the shed is 8. °C. The
    15·1 answer
  • How can the Swartz process be modified to work for bacteria?​
    15·1 answer
  • Why doesn’t neon readily form an ionic bond?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!