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Vikki [24]
4 years ago
10

Which expression could represent the consetration of a solution

Chemistry
1 answer:
Darina [25.2K]4 years ago
3 0

Answer:

There are a couple of ways in which you can express the concentration of a solution, and here they are: gram per liter (g/L), molarity (M), parts per million (ppm.), and percents (%). As you can see, only M appears in your answers, which means that the correct option should be (2) 3.5 M.

Explanation:

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Answer:

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Explanation:

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ΔH°rxn = 1 mol × ΔH°f(NH₄Cl(s)) - 1 mol × ΔH°f(NH₃(g)) - 1 mol × ΔH°f(HCl(g))

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You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31 kilograms. How would you enter this number
mote1985 [20]

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Explanation:

The mass of an electron expressed in standard form is 9.11x10-31, which is the same thing as 0.000000000000000000000000000000911, while the former looks compact and easier to understand, the latter is clumsy,

The concept of three significant figures mean, three non-zero figures, in other words, provide your answer in an approximate form using three figures apart from zero, so you would try to express your answer in such a way that the first digit in your answer is not zero, in this case, its a "nine" - "9", and the other two significant figures are "1" and "1".

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