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Phoenix [80]
3 years ago
14

A piece of glass is immersed in a liquid. It proceeds to float on the liquid's surface. This shows that the density of the glass

is _____ the density of the liquid.
a. More than
b. Less than
c. Equal to
d. Not comparable
Chemistry
1 answer:
tamaranim1 [39]3 years ago
7 0

Answer: b) Less dense

Explanation:

Differences in density is one reason objects float or sink.

An object more dense than the fluid in which it is immersed will sink, while objects less dense than the fluid in which it is immersed will float to the surface.

But objects floats at constant level if the density is equal to the density of the fluid in which it is immersed; it neither rises nor sinks in the fluid in this case.

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A chemist needs to find the concentration of a solution of barium hydroxide.
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2 years ago
Suppose you are titrating vinegar, which is an acetic acid solution
kotegsom [21]

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0.373 M

Explanation:

The balanced equation for the reaction is given below:

HC2H3O2 + NaOH —> NaC2H3O2 + H2O

From the balanced equation above, the following were obtained:

Mole ratio of the acid, HC2H3O2 (nA) = 1

Mole ratio of the base, NaOH (nB) = 1

Next, we shall write out the data obtained from the question. This include:

Volume of base, NaOH (Vb) = 32.17 mL

Molarity of base, NaOH (Mb) = 0.116 M

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Molarity of acid, HC2H3O2 (Ma) =..?

The molarity of the acid solution can be obtained as follow:

MaVa/MbVb = nA/nB

Ma x 10 / 0.116 x 32.17 = 1

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Ma x 10 = 0.116 x 32.17

Divide both side by 10

Ma = (0.116 x 32.17) /10

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