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
aniked [119]
3 years ago
14

Today chlorine is prepared from sodium chloride by electrochemical decomposition. Formerly chlorine was produced by heating hydr

ochloric acid with pyrolusite (manganese(IV) oxide, MnO2), a common manganese ore. Small amounts of chlorine may be prepared in the laboratory by the same reaction: 4HCl(aq) + MnO2(s) → 2H2O(l) + MnCl2(aq) + Cl2(g) How many grams of HCl react with 5.18 g of manganese dioxide, according to this equation?
Chemistry
1 answer:
love history [14]3 years ago
4 0

Answer: 8.702g of HCl

Explanation:

Using the details from the equation;

4HCl(aq) + MnO2(s) → 2H2O(l) + MnCl2(aq) + Cl2(g)

The molecular mass of HCl is; 4 (1 + 35.5) = 146g

The molecular mass of MnO2 is; (54.9 + 32) = 86.9g

From the equation it means;

86.9g of MnO2 reacts with 146g of HCl

if 1 g of MnO2  reacts with  146 ÷ 86.9 of HCl

∴ 5.18g of MnO2 will react with; 146 ÷ 86.9 x  5.18 = 8.702g of HCl

Note: Approximations were made during the determination of the molecular masses.

You might be interested in
A reaction produces 10.5 L if oxygen, but was supposed to produce 1 mol of oxygen. What is the percent yield ? (One mole of any
Rzqust [24]
To answer this item, we assume that oxygen behaves ideally such that it is able to fulfill the following equation,

 PV = nRT

If we are to retain constant the variable n and V. 

The percent yield can therefore be solved through the following calculation,

   n = (10.5 L)/(22.4 L)   x 100%

Simplifying,
    n = 46.875%

Answer: 48.87%
5 0
2 years ago
Polyester is a synthetic material used for many different purposes. It is produced from petroleum and natural gas. Producing pol
notka56 [123]

Answer:

A. Producing certain synthetic materials could have a greater environmental impact than disposing of them.

Explanation

I just did this question and got it right.

3 0
2 years ago
How many moles are 3.20 x102 formula units of calcium iodide?
DedPeter [7]

The number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.

<h3>How to calculate number of moles?</h3>

The number of moles in the formula units of a substance is calculated by dividing the formula unit by Avogadro's number.

According to this question, 3.20 x 10² formula units are in calcium iodide. The number of moles is as follows:

no of moles = 3.20 x 10²² ÷ 6.02 × 10²³

no of moles = 0.53 × 10-¹

no of moles = 0.053 moles

Therefore, the number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.

Learn more about number of moles at: brainly.com/question/12513822

#SPJ6

3 0
2 years ago
Read 2 more answers
Describe briefly how to obtain the radial probability of an electron​
Kaylis [27]

Explanation:

The radial distribution function gives the probability density for an electron to be found anywhere on the surface of a sphere located a distance r from the proton. Since the area of a spherical surface is 4πr2, the radial distribution function is given by 4πr2R(r)∗R(r).

I

8 0
2 years ago
Place where food is stored and partially digested
Ostrovityanka [42]
Answer: Chyme

Explain: Chyme passes from the stomach to the small intestine. Further protein digestion takes place in the small intestine.
3 0
2 years ago
Other questions:
  • Which will result in positive buoyancy and cause the object to float?
    13·2 answers
  • A sample of gas occupies 17 mL at -122°C. What volume does the sample occupy at 70°C?
    11·1 answer
  • When a liquid is poured from a tall narrow cylinder into a short, wide beaker, _____.
    15·2 answers
  • the combustion of a sample of butane C4H10 (lighter fluid ),produced 2.16 grams of water. 2C4H10 +13O2 -------&gt;8CO2+10H2O how
    10·1 answer
  • Which of the following is not a negative consequence of upward urban growth?
    14·1 answer
  • The combination of gases that surrounds and protects the earth is known as
    10·2 answers
  • The number of atoms of an element in a chemical formula is given by the _________.​
    13·1 answer
  • Could a copper metal container be used to store a solution of silver nitrate
    5·1 answer
  • If a piece of foam weighs 0.37 grams and has a density of 6.3 g/cm³, what is its volume?
    6·1 answer
  • The coordination compound Co3[Cr(CN)6]2 contains Co2+ cations and a complex anion. What is the likely oxidation state for Cr in
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!