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
MatroZZZ [7]
3 years ago
6

How many grams of H2 will be produced from 12 grams of Mg according to the following equation?

Chemistry
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

0.98 g of H₂

Explanation:

the balanced equation for the reaction is

Mg + 2HCl ---> MgCl₂ + H₂

molar ratio of Mg to H₂ is 1:1

number of Mg moles reacted = 12 g/ 24.3 g/mol = 0.49 mol

according to molar ratio

when 1 mol of Mg reacts 1 mol of H₂ is formed

therefore when 0.49 mol of Mg reacts - 0.49 mol of H₂ forms

therefore mass of H₂ formed = 0.49 mol x 2 g/mol = 0.98 g

mass of H₂ formed is 0.98 g

You might be interested in
Sigh.....................................
3241004551 [841]

Answer:

what wrong

Explanation:

5 0
2 years ago
Read 2 more answers
Chandra wants to know how many moles are contained in 150.0 g ccl4 (carbon tetrachloride). what quantity of ccl4 should she use
Fynjy0 [20]

The quantity of carbon tetrachloride, CCl₄ she will use to make her conversion is molar mass

<h3>Description of mole </h3>

The mole of a substance is related to it's mass and molar mass according to the following equation:

Mole = mass / molar mass

<h3>How to determine the mole of CCl₄</h3>
  • Mass of CCl₄ = 30 g
  • Molar mass of CCl₄ = 12 + (35.5×4) = 154 g/mol
  • Mole of CCl₄ =?

Mole = mass / molar mass

Mole of CCl₄ = 150 / 154

Mole of CCl₄ = 0.974 mole

Thus, we can see that the molar mass of CCl₄ is needed to obtain the number of mole.

Learn more about mole:

brainly.com/question/13314627

#SPJ4

8 0
2 years ago
When does absorption occur in infrared spectroscopy
Vladimir79 [104]

Answer: hopefully this is right UwU

Explanation: The infrared spectrum of a sample is recorded by passing a beam of infrared light through the sample. When the frequency of the IR is the same as the vibrational frequency of a bond or collection of bonds, absorption occurs. Examination of the transmitted light reveals how much energy was absorbed at each frequency (or wavelength).

5 0
2 years ago
How many moles are in 2.8 g of Mg?
larisa86 [58]

Answer:

2.8 mg ≈ 0.12 mol

6 0
3 years ago
Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pr
leonid [27]
The law that states the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions would be the Charles Law. It <span>is an experimental gas </span>law<span> that describes how gases tend to expand when heated. Hope this answers the question.</span>
6 0
3 years ago
Other questions:
  • A mass of 3.6g of magnesium reacts in excess chlorine to form a chloride, if the mass of the chloride is 14.25g, find the formul
    9·1 answer
  • PLEASEE HELPP!
    10·1 answer
  • What do leaves produce
    5·2 answers
  • Please hurry asap I WILL MARK BRAINLEST
    10·2 answers
  • Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction? A. carbon + oxyg
    15·2 answers
  • What month and what year did Matthias Schleiden contribute to the cell theory.
    13·1 answer
  • Why do you think season will impact the size of a rabbit population​
    6·1 answer
  • I NEED HELP WITH BOTH QUESTIONS PLZZ!!!!!!!!
    5·2 answers
  • When compared to the standard hydrogen electrode, zinc has a reduction potential of -0.762 volts and copper a reduction potentia
    14·1 answer
  • If the atoms that share electrons have an unequal attraction for the electrons, the bond is called
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!