Question
Asked Feb 7, 2020
7 views

Is my work correct?

Question: What is the percent yeild of the nicke(II) coordination?

  • [Ni(H2O)6]Cl2 used = 6.140 g
  • [Ni(en)3]Cl2 produced = 7.001 g

Work

  • mol of [Ni(H2O)6]Cl2
    • 6.140 g/237.67 g/mol = 0.0258 mol [Ni(H2O)6]Cl2
  • mol of [Ni(en)3]Cl2
    • 0.0258 mol [Ni(H2O)6]Cl2 x (1 mol [Ni(H2O)6]Cl2/1mol [Ni(en)3]Cl2) = 0.0258 mol
  • grams of [Ni(en)3]Cl2
    • 0.0258 mol x 309.89 g/mol = 8.00 g
  • % yield 
    • 7.001 g/8.00 g = 87.5%
check_circle

Expert Answer

Step 1

The number of moles for a given chemical species refers to the ratio of mass of the species to that of its molar mass. The formula is shown below:

Chemistry homework question answer, step 1, image 1

 

Step 2

The percent yield in chemistry can be defined as the ratio of actual yield to the theoretical yield multiplied by 100%. The formula is as follows:

Chemistry homework question answer, step 2, image 1

Step 3

In the given problem, the mass of [Ni(H2O)6]Cl2 which has been used is given to be 6.140 g.

The molar  mass of [Ni(H2O)6]Cl2 is 237.65 g/mol.

The number of moles of [Ni(H2O)6]Cl2 can be calculated as follows:

Chemistry homework question answer, step 3, image 1

...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: write the following nymbers in standard scientific notation  a. 97,820 b. 42.14 * 103 c. 0.08214 * 1...

A: The given number 97820 can be expressed in scientific notation,

question_answer

Q: . The following data were obtained for the gas phase decomposition of nitrogen dioxide at 300 oC,   ...

A: The rate law of a reaction is expressed as:

question_answer

Q: One dozen oranges weigh 96 ounces and one dozen grapefruit weighs 144 ounces. How many oranges are t...

A: Calculate weight of one orange and one grapefruit:1 dozen = 12

question_answer

Q: A second spectrophotometric method for the quantitative analysis of Pb2+ in blood yields an Ssamp of...

A: The value of sensitivity of the method for the analyte (kA) is calculated using sample signal relati...

question_answer

Q: From the following list of aqueous solutions and water, select the one with the highest freezing poi...

A: Boiling point:The temperature at which the vapour pressure of a liquid equals the external pressure ...

question_answer

Q: The standard enthalpy of vaporization (H°vap) of ethylene glycol ((CH2OH)2) is 58.7 kJ/mol.The norma...

A: Clausius-Clapeyron equation shows how pressure and temperature vary with respect to each other that ...

question_answer

Q: What is the product or products of this reaction?

A: The given starting material is a haloalcohol. Cyclic ethers can be synthesized from haloalcohols usi...

question_answer

Q: E Give Up? = 21 of 28 Questions O Assignment Score: O Hint 84.7% Check Answer Resources U 13 queaLIU...

A: Given data as follows:

question_answer

Q: Can someone help me solve part F. I have no idea how to figure it out.

A: We can predict the equilibrium direction of acid-base reactions by predicting weak acids or bases. W...