Respuesta :
Marcia made a more concentration of salt because she dissolved more salt in a lesser volume of water.
Concentration of each solution
The concentration of each solution is calculated as follows;
Concentration = mass/volume
For Marcia:
Concentration = 1 /3 = 0.33 kg/L
For Bobby:
- 1 pound = 0.454 kg
- 2 pounds = 0.908 kg
- 2.11 pints = 1 L
- 7 pints = 3.318 L
Concentration = 0.908/3.318 = 0.27 kg/L
Thus, Marcia made a more concentration of salt because she dissolved more salt in a lesser volume of water.
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Marcia made a more concentrated salt solution because the concentration is 0.33 kg/L which is more than the concentration of 0.27 kg/L.
What is the ratio?
It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
We have:
For A science experiment, Marcia dissolved 1.0 kilograms of salt in 3.0 liters of water, for a different experiment Bobby dissolved 2.0 pounds of salt and 7.0 pints of water.
For Marcia, the concentration:
The ratio of mass to volume = 1/3 = 0.33 kg/L
For Bobby, the concentration:
The ratio of mass to volume = 2/7 pounds/pint = (2/2.205)/(7/2.11)
= 0.907/3.317 = 0.27 kg/L
Thus, Marcia made a more concentrated salt solution because the concentration is 0.33 kg/L which is more than the concentration of 0.27 kg/L.
Learn more about the ratio here:
brainly.com/question/13419413
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