six different aqueous solutions are represented in the beakers below, and there total volumes are noted. (a) which solution has
the highest molarity? (b) which solutions have the same molarity? (c) if you mix solutions A and C, does the resulting solution have a higher molarity then, a lower then, or the same molarity as solution B? (d) after 50.mL of water is added to solution D, is its molarity high than, lower than or the same as the molarity of solution F after 75mL is added to it? (e) how much solvent must be evaporated from the solution of E for it to have the same molarity as solution A?
1 answer:
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Answer:
C. 7370 joules.
Explanation:
There is a mistake in the statement. Correct form is described below:
<em>Using the above data table and graph, calculate the total energy in Joules required to raise the temperature of 15 grams of ice at -5.00 °C to water at 35 °C. </em>
The total energy needed to raise the temperature is the combination of latent and sensible heats, all measured in joules, and represented by the following model:
(1)
Where:
- Mass of the sample, in grams.
- Specific heat of ice, in joules per gram-degree Celsius.
- Specific heat of water, in joules per gram-degree Celsius.
- Latent heat of fusion, in joules per gram.
- Initial temperature of the sample, in degrees Celsius.
- Melting point of water, in degrees Celsius.
- Final temperature of water, in degrees Celsius.
- Total energy, in joules.
If we know that ,
,
,
,
,
and
, then the final energy to raise the temperature of the sample is:
Hence, the correct answer is C.
Answer: The atomic mass of E is 16
Explanation:Please see attachment for explanation
