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
shutvik [7]
3 years ago
7

0.329 M copper (II) nitrate was reacted with 0.528 M potassium carbonate as follows: Cu (NO subscript 3 )subscript 2 italic (a q

italic )space plus space straight K subscript 2 CO subscript 3 italic (a q italic )rightwards arrow CuCO subscript 3 italic (s italic )space plus space 2 thin space KNO subscript 3 italic (a q italic )Determine the percent yield if 163.9 mL of each reactant were allowed to react, and a mass of 4.883 g of solid were obtained.
Chemistry
1 answer:
EastWind [94]3 years ago
3 0

Answer:

73.33% is the percent yield

Explanation:

Percent yield is defined as:

Actual yield (4.883g) / Theoretical yield * 100

Based on the reaction:

Cu(NO₃)₂(aq) + K₂CO₃(aq) → CuCO₃(s) + 2KNO₃(aq)

<em>1 mole of copper nitrate reacts per mol of potassium carbonate.</em>

<em />

To solve this question we must find limiting reactant. With limiting reactant we can find the theoretical moles of solid produced and its mass as follows:

<em>Moles Cu(NO₃)₂:</em>

0.1639L * (0.329mol / L) = 0.0539 moles

<em>Moles K₂CO₃:</em>

0.1639L * (0.528mol / L) = 0.0865 moles

As the reaction is 1:1, the limiting reactant is Cu(NO₃)₂.

1 mol of Cu(NO₃)₂ produces 1 mol of CuCO₃. That means theoretical moles produced are 0.0539 moles. And the mass is:

<em>Mass CuCO₃ -Molar mass: 123.55g/mol-</em>

0.0539 moles * (123.55g / mol) = 6.659g of CuCO₃ is the theoretical mass

And percent yield:

4.883g / 6.659g * 100

<h3>73.33% is the percent yield</h3>
You might be interested in
The metal zirconium becomes superconducting at temperatures below 3.4000K.
dybincka [34]

Answer:

-269.75 degrees Celsius

Explanation:

7 0
3 years ago
Ionic formula for sodium oxide
Bas_tet [7]
The ionic formula of sodium oxide would be Na20
5 0
3 years ago
An aluminum cation is smaller than the aluminum atom because it has fewer occupied energy levels. True false
butalik [34]

The molecules or atoms that are formed by gain or loss of one or more valence electrons are said to be ions.

When atom loss one or more valence electrons, results in formation of cation whereas when atom gain one or more valence electrons, then formation of anion occurs. Cations carry positive charge and anions carry negative charge.

In general, cations are smaller than the neutral atoms from which they are formed and anions are larger than the neutral atoms.

As cations are smaller than the related neutral atoms because the valence electrons are lost which are farthest away from the nucleus. After that, taking more electrons distant from the cation results in reduction of radius of the ion.

Thus, aluminium cation consist of few electrons which results in fewer occupied energy levels by the electrons further results in reduction of radius i.e. smaller size.

Hence, given statement is true i.e. aluminium atom is larger than the aluminium cation as cation has fewer occupied energy levels.



3 0
3 years ago
Read 2 more answers
When an iron nail is ground into powder, its mass ____.
Gre4nikov [31]

Explanation:

(a) The mass of an object remains the same always. It is independent of its location. In this case, an iron nail is ground into powder. It means that its mass will remain unchanged. Hence, (a) is the correct option.

(b) Whenever there is a change of color of an object, a chemical reaction occurs. It shows that a reaction happens there. In this problem, a paper turns yellow-brown upon exposure to sunlight. A chemical reaction takes place there. Hence, (b) is the correct option.

3 0
3 years ago
What type of adaptation does seaweed have that allows it to survive and grow in underwater environments?
ElenaW [278]
Life cycle difference I think
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement applies to electronegativity?
    9·2 answers
  • g How many grams of beryllium are needed to produce "11.5" g of hydrogen gas?Be(s) + 2H 2 O(l) → Be(OH) 2 (aq) + H 2 (g)
    5·1 answer
  • If solution A has a pH that is four pH units greater than that of solution B, how much greater is the H3O+ concentration in solu
    11·1 answer
  • The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid barium hydroxide octahydrate
    8·1 answer
  • Which method would be best to separate a mixture of sugar and water? separation by density separation by particle size filtratio
    9·2 answers
  • Complete the mechanism for the cleavage of the ether by adding any missing atoms, bonds, charges, nonbonding electrons, and curv
    11·1 answer
  • How does a physical change obey the law of conservation of mass?
    12·1 answer
  • Intermolecular forces exist between what?
    13·1 answer
  • Explain how you would calculate the q for warming 100.0 grams of liquid water from 0°C to 100 °C.
    15·1 answer
  • Is this equation balanced: AgNO3 + 2 KCl --&gt;AgCl + KNO3 Yes No
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!