If NaCl has a solubility of 36.0 g in 100 . g of H2 O at 20 ^∘ C, how many grams of water are n

Name: Problem 91, Chapter 9: Chemistry: An Introduction to General, Organic, and Biological Chemistry
Uploaded: 2021-05-12T16:00:11-08:00
Duration: 1 min 7 s
Channel: David Collins
Description: If NaCl has a solubility of 36.0 g in 100 . g of H2 O at 20 ^∘ C, how many grams of water are needed to prepare a saturated solution containing 80.0 g of NaCl ?(9.3)

step 1 This question is mostly a simple unit conversion question. It tells us that 36 grams, the solubi

Question

If $\mathrm{NaCl}$ has a solubility of $36.0 \mathrm{~g}$ in $100 . \mathrm{g}$ of $\mathrm{H}_{2} \mathrm{O}$ at $20{ }^{\circ} \mathrm{C}$, how many grams of water are needed to prepare a saturated solution containing $80.0 \mathrm{~g}$ of $\mathrm{NaCl} ?(9.3)$

   If $\mathrm{NaCl}$ has a solubility of $36.0 \mathrm{~g}$ in $100 . \mathrm{g}$ of $\mathrm{H}_{2} \mathrm{O}$ at $20{ }^{\circ} \mathrm{C}$, how many grams of water are needed to prepare a saturated solution containing $80.0 \mathrm{~g}$ of $\mathrm{NaCl} ?(9.3)$

Chemistry: An Introduction to General, Organic, and Biological Chemistry

Karen C. Timberlake 13th Edition

Chapter 9, Problem 91

Instant Answer

Solved by Expert David Collins

05/12/2021

Step 1

The solubility of $\mathrm{NaCl}$ is given as $36.0 \mathrm{~g}$ in $100 . \mathrm{g}$ of $\mathrm{H}_{2} \mathrm{O}$. This means for every $100 \mathrm{~g}$ of water, we can dissolve $36.0 \mathrm{~g}$ of $\mathrm{NaCl}$. Show more…

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If $\mathrm{NaCl}$ has a solubility of $36.0 \mathrm{~g}$ in $100 . \mathrm{g}$ of $\mathrm{H}_{2} \mathrm{O}$ at $20{ }^{\circ} \mathrm{C}$, how many grams of water are needed to prepare a saturated solution containing $80.0 \mathrm{~g}$ of $\mathrm{NaCl} ?(9.3)$

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Key Concepts

Proportional Reasoning

Proportional reasoning involves setting up and solving ratios to relate known quantities. In the context of solution chemistry, it allows one to calculate the required amount of solvent or solute by using the fixed ratio provided by the solubility data.

Solubility

Solubility is the measure of how much solute can dissolve in a given amount of solvent at a specific temperature. It is typically expressed as grams of solute per 100 grams of solvent, and it establishes the maximum concentration that can be achieved before the solution becomes saturated.

Saturated Solution

A saturated solution is one where the solvent contains the maximum amount of dissolved solute as dictated by its solubility at a particular temperature. In this state, any additional solute will not dissolve, indicating that the solution is at equilibrium with the undissolved solute.

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