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Vesna [10]
3 years ago
14

Calculate the molarity of a solution made by dissolving 4.0 g of calcium bromide, CaBr2, in enough water to give 200 mL of solut

ion.
Chemistry
1 answer:
Troyanec [42]3 years ago
8 0

Answer:

0.1 M

Explanation:

Molarity = number of moles / litres of solution.

4 g of calcium bromide = 0.02 mol

(found by dividing 4 g by the atomic mass of CaBr2, which is 199.886)

200 mL of solution = 0.2 litres

Molarity = 0.02 mol / 0.2 L = 0.1 M

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which of the following compounds exhibits dipole -dipole forces as its strongest attraction between molecules? o2,ch3Br,CCl4,He,
Archy [21]

Answer:

B. CH3Br

Explanation:

Dipole -Dipole interactions take place in polar molecules.

CH3Br exhibits dipole -dipole forces as its strongest attraction between molecules because it is a polar molecule due to the slightly negative dipole present on the Br molecule.

While O2 is a nonpolar molecule due to its linear structure, CCl4 has zero resultant dipole moment, Helium is non-polar and BrCH2CH2OH is a non polar compound having net dipole moment is zero.

Hence, the correct option is B. CH3Br.

3 0
3 years ago
Each carbon atom of benzene is involved in two ________
coldgirl [10]

Answer:

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hope it helps!

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7 0
3 years ago
Please helppp !!
Alex787 [66]
D ................................
7 0
3 years ago
What is 5 ounces in milliliters?
SIZIF [17.4K]
1 ounces ----------- 29.5735 mL
5 ounces ----------- ??

5 x 29.5735 / 1 => 147.868 mL

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6 0
2 years ago
Determine the name for aqueous hbr. determine the name for aqueous hbr. bromic acid hydrobromous acid bromous acid hydrobromic a
Vadim26 [7]

The answer is hydrobromic acid.

That is the name for aqueous HBr is hydrobromic acid.

If there is no water that is if it is not aqueous then the name will be hydrogen bromide but as it is acid and in aqueous state so the name will be  hydrobromic acid. As it is acid that's why the suffic ic is used and as it is in aqueous state, so hydro is used.

6 0
3 years ago
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