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3 years ago

Recovering the salt from a mixture of salt and water could best be accomplished?

Chemistry

2 answers:

Bumek [7]3 years ago

3 0

Boiling the salt water

Jlenok [28]3 years ago

3 0

The best way to separate salt from water is to boil the solution because water has a lower boiling point than salt, so the water will evaporate and leave the salt behind

Hope this helps

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10. Select the more polar bond in each of the following pairs: a) C and N or C and o b) N and F or N and O.

worty [1.4K]

A) C and O
B) N and F

3 0

2 years ago

2AlF3 + 3K2O → 6KF + Al2O3 How many grams of AlF3would it take to make 15.524 g of KF?

mr_godi [17]

<h3>Answer:</h3>

7.4797 g AlF₃

<h3>General Formulas and Concepts:</h3>

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Chemistry

Stoichiometry

Reading a Periodic Table

<h3>Explanation:</h3>

Step 1: Define

[RxN] 2AlF₃ + 3K₂O → 6KF + Al₂O₃

[Given] 15.524 g KF

Step 2: Identify Conversions

[RxN] 2 mol AlF₃ = 6 mol KF

Molar Mass of Al - 26.98 g/mol

Molar Mass of F - 19.00 g/mol

Molar Mass of K - 39.10 g/mol

Molar Mass of AlF₃ - 26.98 + 3(19.00) = 83.98 g/mol

Molar Mass of KF - 39.10 + 19.00 = 58.10 g/mol

Step 3: Stoichiometry

Set up: $\displaystyle 15.524 \ g \ KF(\frac{1 \ mol \ KF}{58.10 \ g \ KF})(\frac{2 \ mol \ AlF_3}{6 \ mol \ KF})(\frac{83.98 \ g \ AlF_3}{1 \ mol \ AlF_3})$
Multiply/Divide: $\displaystyle 7.47966 \ g \ AlF_3$

Step 4: Check

Follow sig fig rules and round. We are given 5 sig figs.

7.47966 g AlF₃ ≈ 7.4797 g AlF₃

3 0

3 years ago

Read 2 more answers

If the E°cell value = +0.46V and E°(Ag+/Ag) = +0.80V

fenix001 [56]

Answer:

0.34

Explanation:

Cu>>>Cu2+(oxidation number increases)[Oxidation occurs]

Ag+>>>Ag(Oxidation number decreases) [Reduction occurs]

E°=0.80-0.46

=0.34V

8 0

2 years ago

Read 2 more answers

How can filtering produce clean water from dirty water?

Pavel [41]

Filtering would remove the dirt and some particles of dirt from the water, which would make it good to drink.

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3 years ago

Considering factors that affect that solubility which statement below true?

vovikov84 [41]

Answer:

Part A. The solubility of gases in water increases with increasing temperature.

Part B. Hexane (C₆H₁₄)

Explanation:

Part A

Considering factors that affect that solubility which statement below true?

With a few exceptions, the solubility of most solid solutes in water decreases as the solution temperature increases. FALSE. With a few exceptions, the solubility of most solid solutes in water increases as the solution temperature increases.
The solubility of gases in water increases with increasing temperature. FALSE. In general, the solubility of gases decreases with increasing temperature.
The solubility of a gas in any solvent is increased as the partial pressure of the gas above the solvent Increases. TRUE. According to Henry's law, the solubility of a gas in a liquid is proportional to its partial pressure.
Substances with similar intermolecular attractive forces tend to be insoluble in one another. FALSE. Substances with similar intermolecular attractive forces tend to be soluble in one another.

Part B

Which of these is the best solvent for nonpolar solutes?

acetone (CH₃COCH₃)

ethanol (CH₃CH₂OH)

hexane (C₆H₁₄)

water

There is a general rule that states "like dissolves like", meaning polar is soluble in polar and nonpolar is soluble in nonpolar. Thus, hexane, which is the least polar solvent, would be the best choice for nonpolar solutes.

3 0

3 years ago