https://file.aiquickdraw.com/mathbot/file/1726384924177h4viveoy.jpg

Let's carefully analyze the problem and your answer to find where the mistake may have occurred.

### Problem Overview:
- Scientist A dissolved **1.0 kilogram** of salt in **3.0 liters** of water.
- Scientist B dissolved **1.0 pound** of salt in **7.0 pints** of water.
  
You need to find out which scientist made a **more concentrated solution**, comparing their salt concentration in terms of mass per volume.

### Unit Conversion (Using the provided table):
- **1 kg** = **2.20 pounds** (mass)
- **1 liter** = **2.11 pints** (volume)

### Step-by-Step Calculations:

#### Scientist A:
- Salt = 1.0 kg
- Water volume = 3.0 liters
- Since we're asked to compare concentration in consistent units (likely kilograms per liter), no unit conversions are needed for Scientist A.
- Concentration of Scientist A = \(\frac{1.0 \, \text{kg}}{3.0 \, \text{L}} = 0.333 \, \text{kg/L}\).

#### Scientist B:
- Salt = 1.0 pound
- Water volume = 7.0 pints
- First, convert the mass from pounds to kilograms:
  \[
  1.0 \, \text{pound} = \frac{1.0}{2.20} \, \text{kg} = 0.4545 \, \text{kg}
  \]
- Then, convert the volume from pints to liters:
  \[
  7.0 \, \text{pints} = \frac{7.0}{2.11} \, \text{L} = 3.3175 \, \text{L}
  \]
- Now, calculate the concentration for Scientist B:
  \[
  \text{Concentration of Scientist B} = \frac{0.4545 \, \text{kg}}{3.3175 \, \text{L}} \approx 0.137 \, \text{kg/L}
  \]

### Comparing Concentrations:
- **Scientist A's concentration**: 0.333 kg/L
- **Scientist B's concentration**: 0.137 kg/L

Since **Scientist A** has a higher concentration (0.333 kg/L vs 0.137 kg/L), **Scientist A made a more concentrated solution**.

### Where You Might Have Gone Wrong:
1. It seems likely that either the unit conversions or the calculation of concentrations may have been incorrect, particularly for Scientist B.
2. Based on the screenshot, the concentration values appear to be filled in as **0.14 kg/L** for Scientist B and **0.13 kg/L** for Scientist A, which doesn't match the correct calculations. This might suggest you swapped or miscalculated the concentrations.

Would you like to ask any clarifications or details on this? Here are some related questions to expand on this problem:

1. What is the process of converting mass from pounds to kilograms?
2. How do we convert between pints and liters?
3. How can we ensure our concentration units are consistent before comparison?
4. Why is it important to check units before performing the calculation?
5. What would the concentrations be if the units were different (like pounds per pint)?

**Tip:** Always double-check conversions to ensure you're using the correct units for both scientists before comparing their results.

Scientist A dissolved 1.0 kilogram of salt in 3.0 liters of water. Scientist B dissolved 1.0 pounds of salt in 7.0 pints of water. Which scientist made a more concentrated salt solution? Complete the explanation and give your answer.

Learn how to compare salt solution concentrations using unit conversions and concentration formulas. Scientist A dissolves 1.0 kg of salt in 3.0 liters, and Scientist B dissolves 1.0 pound of salt in 7.0 pints. Understand how to convert between units and determine which solution is more concentrated.

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