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3 years ago

225 J of heat energy were absorbed when a 35.0 g sample of iron was warmed. What was the change in temperature?

Chemistry

1 answer:

MatroZZZ [7]3 years ago

5 0

Answer:

14.3°C

Explanation:

q = m * c * ΔT

ΔT = $\frac{q}{mc}$

the specific heat of iron (c) is 0.450 J/g°C

ΔT = $\frac{q}{mc}$ = $\frac{225J}{35g * \frac{0.450 J}{g C} }$ = $\frac{225J * g * C}{35g * 0.450J}$

cancel out stuff now

ΔT = $\frac{225C}{35 * 0.450}$ = 14.3

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Explanation:

Given the question : How many grams are in 3.67 moles of Lithium cyanide?

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4 years ago

Question 15 (5 points)

Vladimir [108]

This problem is providing us with the maximum mass of Imitrex a patient can get daily as 0.2 g. Also, the mass of a tablet is given as 25 mg so the number of tablets they get in a day is required. After the calculations, the result turns out to be 10 tablets.

<h3>Dimensional analysis:</h3>

In chemistry, dimensional analysis is used to calculate specific outcomes given useful information to do so. Despite not having specific formulas for every problem, one can come up with a feasible proportional-factor-based setup, in order to obtain the required.

In this case, since the mass per tablet is 25 mg, one can divide the maximum dosage by this mass per tablet, both in grams, to obtain the required number of tablets for a daily dosage:

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Learn more about dimensional analysis: brainly.com/question/10874167

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