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-Dominant- [34]
3 years ago
12

Identify the solute and the solvent in each of the following solutions

Chemistry
1 answer:
Vera_Pavlovna [14]3 years ago
7 0
A) 10.0 mL of acetic acid and 200 mL of water
Acetic acid is the solute water is the solvent. Acetic acid dissolves in water.
b) 100.0 mL of water and 5.0 g of sugar
Sugar is the solute while water is the solvent. Sugar dissolves in water.
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If I have 17 liters of gas at 67C and 88.89 atm, what will be the pressure of the gas if I raise the temperature to 94C and decr
dmitriy555 [2]

Answer:

The correct answer is A. 140 atm

Explanation:

We use the gas formula, which results from the combination of the Boyle, Charles and Gay-Lussac laws. According to which at a constant mass, temperature, pressure and volume vary, keeping constant PV / T. We convert the unit Celsius into Kelvin:

0 ° C = 273K, 67 ° C = 273 + 67 = 340K; 94 ° C = 273 + 94 = 367K

P1xV1 /T1= P2x V2/T2

P2= ((P1xV1 /T1)xT2)/V2

P2=((88,89atm x 17L/340K)x367K)/12L= <em>135,927625 atm</em>

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3 years ago
A plant fertilizer contains 15% by mass nitrogen (N). In a container of soluble plant food, there are 12.2 oz of fertilizer. How
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51.86 grams would be in the container.

One ounce is an equivalent of 28.34 grams, so times that by 12.2
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12.2 * 28.34 = 345.75.

Put the percentage into decimal form, so 15% would now be 0.15.

0.15 * 345.75 = 51.86.
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Water is known as the universal solvent. One reason water makes a good solvent is because it is composed of polar molecules. Wha
Flauer [41]

Answer: Option (C) is the correct answer.

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A water molecule is made up of two hydrogen atoms and one oxygen atom. Its molecular formula is H_{2}O.

It is known that hydrogen is electropositive in nature whereas oxygen is electronegative in nature. Therefore, oxygen will pull the electron of hydrogen towards itself as a result, there will be formation of partial positive charge on hydrogen and partial negative charge on oxygen atom.

Thus, the water molecule becomes polar. So, we can conclude that water molecule is a polar molecule because water molecules have a positive charge on one end and a negative charge on  the other.

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