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den301095 [7]
3 years ago
14

What is the pH of a 0.0001 M aqueous solution of HCI?

Chemistry
1 answer:
IgorLugansk [536]3 years ago
4 0
PH=4
-log(0.0001)=4
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Find the density of a substance with a mass of 45 grams and a volume of 9
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Density = 5g / [volume unit]

There was no specification on the units of volume.  However, whatever it may be, just replace the square brackets with the value and your units will be correct.

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graduated cylinder is filled with water to a volume of 6.2 ML. an irregular shaped plastic object weighing 1.2 g is placed in th
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Answer:

A. Density of object = 0.86 g/mL

B. The object will float in the water.

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The following data were obtained from the question:

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A. Determination of the density of the object.

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Density = 1.2/1.39

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B. Determination of whether the object will float or sink.

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Density of water = 1 g/mL

From the above, we can see that the density of water is greater than that of the object. This implies that the object is lighter than water. Therefore, the object will float in the water.

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