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
Aleksandr [31]
2 years ago
13

2Al + 6HCl → 2AlCl3 + 3H2 If 85.0 grams of HCl react, how many moles of H2 are produced?

Chemistry
1 answer:
Murrr4er [49]2 years ago
8 0

Answer:

1.17 mol

Explanation:

Step 1: Write the balanced equation

2 Al + 6 HCl → 2 AlCl₃ + 3 H₂

Step 2: Calculate the moles corresponding to 85.0 g of HCl

The molar mass of HCl is 36.46 g/mol.

85.0 g × 1 mol/36.46 g = 2.33 mol

Step 3: Calculate the number of moles of H₂ produced from 2.33 moles of HCl

The molar ratio of HCl to H₂ is 6:3.

2.33 mol HCl × 3 mol H₂/6 mol H₂ = 1.17 mol H₂

You might be interested in
Use the Henderson-Hasselbalch equation and your knowledge of ionization to help you answer this question. Aspirin is a weak acid
Leya [2.2K]

Answer:

The protonated form is predominant when aspirin is absorbed more readily. The ratio of conjugate base to acid is 1 to 100.

Explanation:

Aspirin is more readily absorbed when it is protonated, that is when pH is lower than pKa (<em>more H⁺ available in the medium</em>). We can confirm this using Henderson-Hasselbalch equation for pH = 1.5:

pH = pKa +log(\frac{conjugate base}{weak acid} )\\1.5=3.5 +log(\frac{conjugate base}{weak acid} )\\-2.0=log(\frac{conjugate base}{weak acid} )\\10^{-2.0} =\frac{conjugate base}{weak acid}\\\frac{conjugate base}{weak acid}=0.01=\frac{1}{100}

When aspirin is absorbed more readily the ratio of conjugate base to acid is 1 to 100, being the acid the <em>predominant</em> form.

6 0
3 years ago
Which statement best describes the energy of activation?
Furkat [3]

activation energy start off chemical reaction

6 0
3 years ago
Read 2 more answers
After 11.5 days, 12.5% of a sample of radon-222 that originally weighed 42g remains. What is the half-life of this isotope?
Bond [772]
Half-life is defined as the amount of time it takes a given quantity to decrease to half of its initial value.  The equation to describe the decay is
Nt=N0(1/2) ^{t/t(1/2)}  where N0 is the initial quantity, Nt is the remaining quantity after time t, t1/2 is the half-time.  So work out the equation, t1/2 = t (-ln2)/ln(Nt/N0) = 11.5*(-ln2)/ln(12.5/100) = 3.83 days
5 0
3 years ago
In a chemical equation, what do the coefficients indicate?
Mekhanik [1.2K]
In a chemical equation coefficients indicate the number of molecules/atoms involved in the reaction.
6 0
3 years ago
Read 2 more answers
Giving brainless to who gets it correct
mafiozo [28]
1-energy
2- force
3- force
4- force
5- energy
6- energy
5 0
2 years ago
Other questions:
  • Which of the following laboratory procedures best illustrates the law of conservation of mass?
    15·2 answers
  • Using complete subshell notation (not abbreviations, 1s 22s 22p 6 , and so forth), predict the electron configuration of each of
    13·1 answer
  • Check each item below that is a chemical change.
    13·1 answer
  • 1) When solid Fe metal is put into an aqueous solution of NiSO4, solid Ni metal and a solution of FeSO4 result. Write the net io
    13·1 answer
  • Perform the following conversions:
    14·1 answer
  • What is the box notation for chlorine
    11·1 answer
  • If 35.0 grams of coal (carbon) burns in 58.5 grams of oxygen gas, how many grams of carbon dioxide can be produced? Describe the
    7·1 answer
  • How many grams are in 6.60 moles of ZnO?
    7·1 answer
  • A mixture of amino acids (written as M) was tested against five known amino acids (written as 1 to 5) and the chromatogram was m
    14·1 answer
  • What happens to a pendulum’s kinetic energy as the pendulum comes to a stop.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!