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
n200080 [17]
3 years ago
6

When zinc reacts with sulfuric acid, as shown here, what mass of hydrogen is produced from 31.8 g of zinc?

Chemistry
1 answer:
Alina [70]3 years ago
3 0

Answer:

The answer to your question is 0.98 g of H₂

Explanation:

Data

mass of H₂ = ?

mass of Zn = 31.8 g

Balanced chemical reaction

                Zn  +  H₂SO₄  ⇒   ZnSO₄  +  H₂

Process

1.- Calculate the molar mass or atomic mass of Zinc and hydrogen

The Atomic mass of zinc = 65 g

The Molar mass of H₂ = 2 g

2.- Use proportions and cross multiplication to find the mass of H₂ formed.

                       65 g of Zn ----------------- 2 g of H₂

                        31.8 g of Zn --------------  x

                            x = (31.8 x 2) / 65

                            x = 63.6/65

-Result

                            x = 0.98 g of H₂

You might be interested in
What is the difference between a jar of hydrogen and oxygen and a jar of water vapor
Goryan [66]
Water vapour is made up of H2O molecules, where the hydrogen and oxygen atoms have covalent bonds that join them. A jar of hydrogen and oxygen just has oxygen molecules and hydrogen molecules, which are separate.
6 0
4 years ago
Which rigid cylinder contains the same number of gas molecules at STP as a 2.0-liter rigid cylinder containing H2(g) at STP?
Inga [223]
When we say STP that means the system is at its standard temperature and pressure. Both systems is having the same condition hence temperature and pressure is constant. We then set the amount of gas in both cases to be equal. Hence from the ideal gas law, 
PV=nRT we can say that with everything constant, volume must also be constant. 

The answer is (2) 2 L of methane gas. 
4 0
3 years ago
!⚠️⚠️⚠️⚠️⚠️⚠️⚠️!25 POINTS ANSWER ASAP PLEASE!! ⚠️ ⚠️⚠️⚠️⚠️⚠️⚠️⚠️
Andreyy89

Answer:

trees collect energy from sitting in the sun, the interact with their enviorment because they provide oxygen, and they reproduce when their fruit flowers or leaves fall off.

Explanation:

8 0
3 years ago
How are clouds formed
elena-14-01-66 [18.8K]
Clouds are formed by water then it evaporates into air
4 0
4 years ago
Read 2 more answers
Which of the following results in the release of nuclear energy?
Pepsi [2]

c.Both the breaking of nuclear bonds and the forming of nuclear bonds.

Explanation:

Nuclear energy is released by the breaking and forming of nuclear bonds. The breaking of nuclear bonds by unstable atoms is known as nuclear fission. The forming of nuclear bonds by combination of light atoms is known as nuclear fusion.

  • Nuclear fission is a radioactive decay process in which a heavy nucleus spontaneously disintegrates into lighter ones with the release of energy.
  • In nuclear fusion, atomic nuclei combines into larger ones with the release of large amount of energy.

Learn more:

Nuclear decay brainly.com/question/4207569

#learnwithBrainly

3 0
3 years ago
Other questions:
  • This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment. a.b.c.
    6·2 answers
  • How many hydrogen atoms are in an acyclic alkane with 8 carbon atoms?
    5·1 answer
  • What charge does nitrogen form when it satisfies the octet rule?
    10·1 answer
  • If scientists managed to produce a plasma on Earth, what might they keep in it?
    11·1 answer
  • What do ammonium ion, and hydroxide ions make if put together
    6·1 answer
  • A sample of gas contains 0.1700 mol of OF2(g) and 0.1700 mol of H2O(g) and occupies a volume of 19.5 L. The following reaction t
    11·1 answer
  • Which of the following best describe gas particles?
    5·1 answer
  • What is the mass of cerrusite (PbCO*3)would contain 35g of lead?​
    13·1 answer
  • Why does a solid fill only part of a closed jar while the same mass of a gas fills the whole jar?
    10·1 answer
  • Which of the following assumptions about gases is false?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!