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
Zolol [24]
3 years ago
13

Number of grams of hydrogen than can be prepared from 6.80g of aluminum​

Chemistry
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

0.7561 g.

Explanation:

  • The hydrogen than can be prepared from Al according to the balanced equation:

<em>2Al + 6HCl → 2AlCl₃ + 3H₂,</em>

It is clear that 2.0 moles of Al react with 6.0 mole of HCl to produce 2.0 moles of AlCl₃ and 3.0 mole of H₂.

  • Firstly, we need to calculate the no. of moles of (6.8 g) of Al:

no. of moles of Al = mass/atomic mass = (6.8 g)/(26.98 g/mol) = 0.252 mol.

<em>Using cross multiplication:</em>

2.0 mol of Al produce → 3.0 mol of H₂, from stichiometry.

0.252 mol of Al need to react → ??? mol of H₂.

∴ the no. of moles of H₂ that can be prepared from 6.80 g of aluminum = (3.0 mol)(0.252 mol)/(2.0 mol) = 0.3781 mol.

  • Now, we can get the mass of H₂ that can be prepared from 6.80 g of aluminum:

mass of H₂ = (no. of moles)(molar mass) = (0.3781 mol)(2.0 g/mol) = 0.7561 g.

You might be interested in
If the map shows the average high temperature in July for two cities in Texas. like Del Rio=36°c
Sedbober [7]

Answer:

D

Explanation:

Ocean breezes keep coastal galveston cooler than Del Rio, which is inland exposed to southerly winds.

4 0
3 years ago
Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecul
Helen [10]
C
Carbon and its compound's stability means it is useful in synthesizing organic molecules which are used in the bodies of organisms.
6 0
3 years ago
Read 2 more answers
A compound is formed by the reaction between magnesium and bromine. What is the chemical formula for this compound?
saul85 [17]

Answer:

Magnesium Bromide

Explanation:

MgBr₂

3 0
3 years ago
Help!! 29 pointss
yaroslaw [1]
10 is mixture of elements and compounds
11 is compound
12-15 are mixture of compounds
3 0
3 years ago
How many grams of CO2 are in 10 mol of the compound?
IrinaK [193]
The answer is 60 grams.
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is another word for the sound barrier?
    11·2 answers
  • What would happen to the CO2 gas in a soda pop if it is left to chill in a fridge
    14·1 answer
  • An open flask sitting in a lab refrigerator looks empty, but it is actually filled with a mixture of gases called air. If the fl
    11·1 answer
  • 6.The combustion reaction of the amino acid glycine (NH2CH2COOH, solid) has a standard enthalpy of –969 kJ/mol at 298K, and a st
    15·1 answer
  • How is clay deposited to form shale?
    9·1 answer
  • The image represents the reaction between a certain number of molecules of N2 and H2
    8·1 answer
  • Which process is constructive?
    7·1 answer
  • Calculate the activation energy for vacancy formation in Al given that the equilibrium number of vacancies at a temperature of 7
    15·1 answer
  • Is freshwater a mixture?
    12·1 answer
  • Which chemical equation below shows a combination (or synthesis reaction?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!