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Nady [450]
3 years ago
6

2. Which determines the identity of an

Chemistry
1 answer:
kaheart [24]3 years ago
8 0

Answer:

D. The number of it's protons

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What is the colligative property that means a solution typically has a measurably highter boiling point than a pure solvent alon
Arlecino [84]
<span>B) Boiling point Elevation states a solution typically has a measurably higher than a pure solvent . So would be B. </span>
3 0
3 years ago
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X ÷ 3 – y ÷ 6 + z ÷ 9<br>​
sveta [45]

Answer:

1/18x(6x-3y+2z)

1/3x-1/6y+1/9z

Explanation:

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3 years ago
What is the mole fraction of ethanol in a solution of 3.00 moles of ethanol and 5.00 moles of water?
Rus_ich [418]
If theres a mixture of components we can calculate the mole fraction
mole fraction can be calculated as follows
mole fraction of component = \frac{number of moles of component}{total number of moles of all components }
number of moles of ethanol - 3.00 mol
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6 0
4 years ago
Which pair of elements has the most similar properties?
stiks02 [169]

Answer:

So, the elements with similar properties to sodium (Na) are all of those elements in the same Group.

Explanation:

The ones "most" similar would be the ones closest in mass as well. Those would be Lithium (Li) and Potassium (K).

7 0
3 years ago
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A solution is made by dissolving 21.5 g of NaOH in approximately 450 mL of water in a volumetric flask. The solution becomes qui
zzz [600]

Answer:

The answer to your question is: pH = 13.97

Explanation:

Data

NaOH = 21.5 g

Volume = 500 ml

pH = ?

Formula

Molarity = moles / volume (l)

pOH = -log [OH⁺]

pH = 14 - pOH

Moles of NaOH

MM NaOH = 23 + 16 + 1

                  = 40 g

                                40 g of NaOH ----------------- 1 mol

                                 21.5 g of NaOH --------------   x

                                 x = 0.538 moles

Molarity = 0.538/ 0.5

              = 1.075 M

pOH = -log [1.075]

pOH = 0.0318

pH = 14 - 0.0318

pH = 13.97

4 0
3 years ago
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