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Aliun [14]
2 years ago
11

Compound X has a Rf value of 0.25. How far will compound X have traveled from the origin when the eluent (solvent) front has tra

veled 40 mm
Chemistry
1 answer:
antoniya [11.8K]2 years ago
6 0

Answer:

10mm

Explanation:

Rf value = 0.25 = 25% of total distance traveled by eluant.

0.25*40mm =10mm

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Explanation:

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 How much energy is needed to raise the temperature of 125g of water from 25.0oC to 35.0oC?  The specific heat of water is 4.184
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Hello!

To find the amount of energy need to raise the temperature of 125 grams of water from 25.0° C to 35.0° C, we will need to use the formula: q = mcΔt.

In this formula, q is the heat absorbed, m is the mass, c is the specific heat, and Δt is the change in temperature, which is found by final temperature minus the initial temperature.

Firstly, we can find the change in temperature. We are given the initial temperature, which is 25.0° C and the final temperature, which is 35.0° C. It is found by subtract the final temperature from the initial temperature.

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Therefore, it will take 5230 joules (J) to raise the temperature of the water.

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Explanation:

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