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
Setler79 [48]
2 years ago
6

Copper metal (Cu) reacts with silver nitrate (AgNO3) in aqueous solution to form Ag and Cu(NO3)2. The balanced chemical equation

is shown below. Cu 2AgNO3 Right arrow. Cu(NO3)2 2Ag The molar mass of Cu is 63. 5 g/mol. The molar mass of Ag is 107. 9 g/mol. What mass, in grams, of Ag is produced from a reaction of 31. 75 g of Cu? 26. 95 grams 107. 9 grams 215. 91 grams 431. 82 grams.
Chemistry
1 answer:
mars1129 [50]2 years ago
3 0

107.9 g of Ag is produced from a reaction of 31. 75 gram of Copper.

<h3>How we calculate mass from the moles?</h3>

Mass of any substance will be calculated from its moles as:

n = W/M, where

W = required mass

M= molar mas

Given chemical reaction is:

Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

From the stoichiometry of the reaction, it is clear that:

1 mole of Cu = produce 2 moles of Ag

Given mass of Cu = 31.75g

Molar mass of Cu = 63.5g/mol

Moles of Cu = 31.75g / 63.5g/mol = 0.5 moles

0.5 moles of Cu = produce 2×0.5 = 1 mole of Ag

Molar mass of Ag = 107.9g/mol

Required mass of Ag = 1mol × 107.9g/mol = 107.9 g

Hence, option (2) is correct i.e. 107.9 g of Ag is produced.

To know more about moles, visit the below link:

https://brainly.in/question/148570

You might be interested in
What are the chemical properties of acids​
Oliga [24]

Answer:

Acids are sour in taste. Acids react with carbonates and hydrogen carbonates to form a salt, water, and carbon dioxide gas. Extremely active metals such as Potassium (K), Calcium (Ca), Sodium (Na), etc tend to explode when combined with acids. Weak Acids like Carbonic Acid doesn't act with any metal at all.

I copied and pasted

but I hope the info helps

7 0
3 years ago
When the first ball in a Newton's cradle is pulled back and released, it causes the final ball to move. What does this example o
bazaltina [42]

Answer:

<h3>A. </h3>

Explanation:

Mechanical energy is energy in motion is the example of mechanical energy⚡

7 0
3 years ago
*multiple choice*
galben [10]

1.95  or 2  is the molarity of a 45.3g sample of KNO3 (101g) dissolved in enough water to make a 0.225L solution.

The correct answer is option b

Explanation:

Data given:

mass of KNO_{3} = 45.3 grams

volume = 0.225 litre

molarity =?

atomic mass of KNO3 = 101 grams/mole

molarity is calculated by using the formula:

molarity = \frac{number of moles}{volume of the solution}

first the number of moles present in the given mass is calculated as:

number of moles = \frac{mass}{atomic mass of 1 mole}

number of moles = \frac{45.3}{101}

0.44 moles of KNO3

Putting the values in the equation of molarity:

molarity = \frac{0.44}{0.225}

molarity = 1.95

It can be taken as 2.

The molarity of the potassium nitrate solution is 2.

7 0
3 years ago
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. Cac
Tanya [424]

Answer:

The equation that gives the overall equilibrium in terms of the equilibrium constants K and Ky is K1 = K^6 * Ky

Explanation:

we have the following balanced reaction:

CaC2 + 2H2O = C2H2 + Ca(OH)2

the value of K for this reaction will be equal to:

K = ([C2H2] * [Ca(OH)2])/([CaC2] * [H2O]^2)

if we multiply the reaction by the value of 6, we have:

6CaC2 + 12H2O = 6C2H2 + 6Ca(OH)2

Again, the value of K for this reaction will be equal to:

K,´ = ([C2H2] ^6 * [Ca(OH)2]^6)/([CaC2]^6 * [H2O]^12) = K^6

For the second reaction:

6C2H2 + 3CO2 + 4H2O = 5CH2CHCO2H

The value of K for this reaction:

K2 = ([CH2CHCO2H]^5)/([C2H2]^6 * [CO2]^3 * [H2O]^4)

we also have:

K1 = ([CH2CHCO2H]^5)/([C2H2]^6 * [CO2]^3 * [H2O]^16)

Thus:

K1 = K^6 * Ky

4 0
3 years ago
Nuclear reactions involves​
Finger [1]
Nuclear reaction involves two reacting particles a heavy target nucleus and a light bombarding particle and produces two new particles a heavier product nucleus and a lighter ejected particle.
6 0
3 years ago
Other questions:
  • Why does a newly opened can of warm soda have less carbonation than a newly opened can of cold soda?
    10·1 answer
  • The _____ law of thermodynamics states that two objects in thermal equilibrium will have no net heat flow between them.
    7·2 answers
  • Which of the following statements is true? A. A producer usually obtains food by hunting other organisms. B. Humans that prepare
    10·2 answers
  • Both light and sound travel in the form of waves that are created by a transfer of ____
    7·2 answers
  • We can use thin layer chromatography to check if Starbuck coffee has caffeine.<br> True<br> False
    11·1 answer
  • HELP!!!!!! Stacy finds a gun at a crime scene. Which part of the gun should she never touch?
    9·1 answer
  • Why does the sun appear to be the brightest star in the sky?
    13·2 answers
  • Which shows the correct order of experiments from oldest to most recent
    10·1 answer
  • Help me┐(´ー`)┌thank you in advance ​
    8·2 answers
  • 5
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!