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3 years ago

Identify the spectator ions in the reaction that occurs between aqueous solutions of potassium hydroxide and hydrochloric acid

Chemistry

1 answer:

m_a_m_a [10]3 years ago

8 0

Answer:

The answer is option A.

K+ Cl-

Hope this helps you

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23°C = ______ K -250 296 123 23

strojnjashka [21]

Answer:

296

Explanation:

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4 years ago

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Look at the reaction below. upper h subscript 2 upper s upper o subscript 4 (a q) plus upper c a (upper o upper h) subscript 2 (

kogti [31]

In the given reaction, the substance that is the base of the reaction is $CaSO_4$ . The correct option is C.

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Examples of bases are calcium carbonate, sodium hydroxide, etc.

Thus, the correct option is C.

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3 years ago

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A sulfuric acid solution containing 571.6 g of H2SO4 per liter of solution has a density of 1.329 g/cm3. Calculate (a) the mass

IgorLugansk [536]

Answer:

a) 43%

b) 0.122

c) 7.70 molal

d) 5.83 M

Explanation:

Step 1: Data given

Mass of H2SO4 = 571.6 grams

Density of H2SO4 = 1.329 g/cm³ this means 1.329 grams per 1 mL or 1329 grams per 1L

a) Calculate mass percentage

Mass % = (571.6 grams / 1329 grams)* 100% = 43%

b) Calculate mole fraction

Number of moles H2SO4 = Mass H2SO4 / Molar mass H2SO4

Moles H2SO4 = 571.6 grams / 98.08 g/mol

Moles H2SO4 = 5.83 moles

Moles H2O = (1329 -571.6)/18.02 = 42.03 moles

Total moles = 5.83 + 42.03 = 47.86 moles

Mole fraction H2SO4 = Moles of solute (H2SO4)/ Total moles

Mole fraction H2SO4 = 5.83 moles / 47.86 moles

Mol fraction h2SO4 = 0.122

c) Calculate the molality

Mass of solvent = 1329 grams - 571.6 grams = 757.4 grams = 0.7574 kg

Molality of H2SO4 = number of moles H2SO4 / mass of solvent

Molality H2SO4 = 5.83 moles / 0.7574 kg

Molality H2SO4 = 7.70 molal

d) Calculate Molarity

Molarity H2SO4 = Number of moles H2SO4 / volume

Molarity H2SO4 = 5.83 moles / 1L = 5.83 M

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3 years ago

How does the choloroplast and mitochondria make enegy: PLEASE HELP:

Mashcka [7]

The chloroplasts convert radiant energy into chemical energy. Mitochondria convert food into energy.
Mitochondria = Animal Cell ONLY
Chloroplasts = Plant Cell ONLY
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7 0

4 years ago

If the pH of a solution is 5, what is the hydrogen ion concentration?

Gnoma [55]

Yo sup??

We know that

pH=-log[H+]

[H+]=10^(-pH)

pH=5

therefore

[H+]=10^(-5)

The medium is acidic

Hope this helps.

5 0

4 years ago

Identify the spectator ions in the reaction that occurs between aqueous solutions of potassium hydroxide and hydrochloric acid￼

Identify the spectator ions in the reaction that occurs between aqueous solutions of potassium hydroxide and hydrochloric acid