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Mnenie [13.5K]
3 years ago
13

Which generally occurs as temperature increases?

Chemistry
2 answers:
Anna11 [10]3 years ago
8 0

Answer:

solubility increases

Explanation:

For example with gases dissolved in liquids, a rise in temp would decrease solubility. There are even some solid in liquid soln where increasing temps decreases solubility.

grin007 [14]3 years ago
7 0

Solubility increases.

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A solution is prepared by pipetting 20.00 mL of a 1.00 x 10-3 M NaCl solution into a 250.0 mL volumetric flask. The flask is dil
oee [108]

Answer:

The concentration of the newly prepared solution is 8 * 10^-5 M

Explanation:

The most common way to solve this problem is to use the following formula

c1*V1 = c2*V2

with c1 = 1 * 10^-3 M

with V1 = 20 mL = 0.02 L

with c2 = TO BE DETERMINED

with V2 = 250 mL = O.250 L

10^-3 * 0.02 L = c2 * 0.250L

0.00002 = c2 * 0.250L

c2 = 0.00002 / 0.250 L

c2 = 0.00008 M = 8 * 10^-5 M

The concentration of the newly prepared solution is 8 * 10^-5 M

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What type of plants contain tubes that help transport water and nutrients into their other parts?
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Answer:

A

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Brass is an alloy of copper and zinc. varying the mass per- centages of the two metals produces brasses with different proper- t
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First step: The mass of zinc in the yellow zinc sample can be calculated with the help of percentage (given) in the sample. After that, mass of copper is determine by the subtracting the mass of zinc from the total mass of zinc in the given sample.

Thus,

Mass of zinc in 34% zinc sample = 185 g yellow zinc \times \frac{34 zinc}{100 yellow zinc}

= 62.9 g zinc

Mass of zinc in 37% zinc sample = 185 g yellow zinc \times \frac{37 zinc}{100 yellow zinc}

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Now,

mass of copper in 34% zinc sample =185 g -62.9 g

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mass of copper in 37% zinc sample = 185 g -68.45 g

=116.55 g \simeq 117 g

Thus, the range of mass of copper is 117 g to  122 g

Second step:

34% zinc sample consist of 66% copper (100-34= 66%)

37% zinc sample consist of 63% copper (100-37=63%)

Mass of zinc = (46.5 g copper) \times \frac{34 percent zinc}{66 percent copper}

= 23.95 g\simeq 24 g

Mass of zinc  =46.5 g copper \times \frac{37 percent zinc}{63 percent copper}

= 27.30 g\simeq 27g

Thus, the range of mass of zinc is 24 g to  27 g





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