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sineoko [7]
3 years ago
9

How many conversion factors would you need to use to find the number of liters in a cubic decimeter? What are they?

Chemistry
1 answer:
suter [353]3 years ago
4 0
One liter is 1000 ml
1 ml is 1cm^3
One dm^3 is 1000 cm^3
Thus, 1 liter is 1 dm^3
The number of factors used is 4.
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3 years ago
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What mass of Ca(NO3)2 must be dissolved in 726.0 g of water to prepare a 0.200 m solution? Use molar masses with at least as man
sashaice [31]

Answer:

The answer to your question is 22.4 g of Ca(NO₃)₂

Explanation:

Data

mass of Ca(NO₃)₂ = ?

mass of water = 726 g

concentration = 0.2 m

Process

In Chemistry, there are two main units of concentration Molarity (M) and Molality (m). In this problem concentration is "m" then I will calculate molality.

1) Formula

   molality = moles / mass of solvent

2.- Solve for moles

   moles = molality x mass of solvent

-Substitution

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-Simplification

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3.- Convert moles to grams

Molar mass of Ca(NO₃)₂ = 40 + (14 x 2) + (6 x 16)

                                       = 40 + 18 + 96

                                       = 154 g

              154 g of Ca(NO₃)₂ ---------------- 1 mol

                 x                          ---------------- 0.1452 moles

                                    x = (0.1452 x 154) / 1

                                    x = 22.4 g of Ca(NO₃)₂

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3 years ago
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Detailed explanation:

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2 years ago
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3 years ago
If you have 1 proton and 2 electrons, what is the overall charge of the ion?
marysya [2.9K]
The overall charge will be negative 1
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4 years ago
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