Asked Sep 26, 2019

A tetraphenyl phosphonium chloride (TPPCl) powder (FW=342.39) is 98.0 percent pure. How many grams are needed to prepare 0.50 L of a 41.0 mM solution?


Expert Answer

Step 1


Molar mass of tetraphenyl phosphonium chloride = 342.39 g/mol

Percentage of purity of tetraphenyl phosphonium chloride = 98.0 %

Molarity = 41.0 mM = 0.041 M

Volume = 0.50 L


Number of moles of tetraphenyl phosphonium chloride needed to prepare 0.50 L of a 0.041 M(mol/L) solution, can be calculated as:


Image Transcriptionclose

No. of moles Molarity olume of solution No. of moles Molarity x Volume of solution No. of moles 0.041mol/L x 0.50 L No. of moles 0.0205 mol

Step 2

Grams of tetraphenyl phosphonium chloride can be calculated as:


Image Transcriptionclose

Mass No. of moles Molar mass Mass No. of moles x Molar mass Mass 0.0205 mol x 342.39 g/mol Mass 7.02 g

Step 3

The calculated mass (7.02 g) is the pure mass of tetraphenyl phosphonium chloride required. But, it is given that purity of tetrapheny...


Image Transcriptionclose

Mass of pure substance Percentage of purity =Mass of the substance x 100% Mass of pure substance Mass of the substance x 100 % Percentage of purity 7.02 g Mass of the substance x 100% 98 % Mass of the substance 7.16 g


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



General Chemistry

Related Chemistry Q&A

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

Q: Q Search this course Reference Use the References to access importantv needed for this question. The...

A: Equilibrium is a state of chemical reaction at which the rate of forward reaction becomes equal to t...


Q: If the rate law for a process is rate=k[A]^2 [B], and [A]=0.7085 and [B]=0.1211, determine the rate ...

A: Given :Rate = k [A]2 [B][A] = 0.7085 [B] = 0.1211We need to determine the rate as a multiple of k


Q: What would be the steps of this reaction?

A: The given methyl cyclopentane reacts with phosphorous tri bromide to give (bromomethyl) cyclopentane...


Q: OH 5. Classify the following alcohols n fo PMimary Secondlany and Crhavy cl CHCHCHOH b CH3CH CC2CH2O...

A: The given alcohols are classified based on functional group hydroxyl group attachment.


Q: 32. Based on the molecular views, classify each substance as an atomic element, a molecular element,...

A: The given molecules can be identified in to ionic compound/molecular compound or element by observin...


Q: 4.6 Which of the following ions will always be a spectator ion in a precipitation reaction? Cl - ...

A: The term spectator ions refer to those ions which are present in the same phase on both the product ...


Q: The equilibrium constant, K, for the following reaction is 1.31×10-2 at 502 K. PCl5(g) =PCl3(g) + Cl...

A: Balanced equation at equilibrium is 


Q: please answer question 8.

A: Quantum numbers :There are four quantum numbers which are described as follows,n - principal quantum...


Q: 1. Write the chemical equation for the reaction of washing soda, Na2CO3, with HCl. 2. Write the chem...

A: A chemical equation refers to the symbolic representation of a given chemical reaction in the form o...