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3 years ago

FCalculate the pH of 1.00 X 10^-6 M HCI *

Chemistry

1 answer:

amid [387]3 years ago

5 0

Explanation:

A.ph 6 B. correct ph goes in a scale up to 14 below 7 is acidic above 7 is basic and in the middle is newtral when they say pH they are asking how acidic is it when they ask for pOH they are asking how basic it is pH is calculated using logs as is pOH so ans

12.65

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Lab 27. stoichiometry and chemical reactions: which balanced chemical equation best represents the thermal decomposition of sodi

Cloud [144]

Answer:
Sodium Bicarbonate on decomposition produces Carbon dioxide gas and Water vapors.

 2 NaHCO₂ → Na₂CO₃ (s) + CO₂ (g) + H₂O (g)

Explanation:
Let suppose you burn 168 g ( 2 moles ) of NaHCO₃, a gas will produced and product is left behind. On measuring the product formed it will be almost equal to 105 g. This shows that the product is Na₂CO₃ and 1 mole of it is being produced after decomposition of sodium bicarbonate.

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3 years ago

Britney added 0.05 moles of copper(II) nitrate solution to 0.1 moles of sodium hydroxide solution and

Rama09 [41]

The percent yield of copper hydroxide is 84%

<h3>Stoichiometry</h3>

From the question, we are to determine the percent yield of copper hydroxide

First, we will determine the theoretical mass

From the given balanced chemical equation, we have

Cu(NO₃)₂ + 2NaOH -- Cu(OH)₂ + 2NaNO₃

This means,

1 mole of copper(II) nitrate reacts with 2 moles of sodium hydroxide to produce 1 mole of copper hydroxide

Therefore,
0.05 mole of copper(II) nitrate reacts with 0.1 mole of sodium hydroxide to produce 0.05 mole of copper hydroxide

The theoretical number of moles of copper hydroxide that is produced is 0.05 mole

Now, for the theoretical mass

Using the formula,

Mass = Number of moles × Molar mass

Molar mass of copper hydroxide = 97.56 g/mol

Then,

Theoretical mass = 0.05 × 97.56

Theoretical mass of copper of hydroxide produced is = 4.878 g

Now, for the percent yield of copper hydroxide

Percent yield is given by the formula,

$Percent\ yield = \frac{Actual\ yield}{Theoretical\ yield} \times 100\%$

Then,

$Percent\ yield\ of\ copper\ hydroxide= \frac{4.1}{4.878}\times 100\%$

$Percent\ yield\ of\ copper\ hydroxide= 84\%$

Hence, the percent yield of copper hydroxide is 84%.

Learn more on Stoichiometry here: brainly.com/question/9372758

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3 years ago

Countercurrent Flow

Nikitich [7]

Answer: All options (I, II, III, IV, V)

Explanation: The answer is all options because they never reach equilibrium or intersect at a region as the both decrease at the same rate.

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2 years ago

Which of the following would indicate that a chemical change might be occurring

Murljashka [212]

Explanation:

During a chemical change, a new kind of matter is formed. Examples are combustion, rusting of iron, precipitation and souring of milk.

Here are some of the properties of chemical change:

They are not easily reversible
It leads to the production of new kinds of matter.
It involves change in mass.
It requires a considerable amount of energy.

Learn more:

Chemical change brainly.com/question/9388643

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3 years ago

Read 2 more answers

List what you are thankful for! (It's Thanksgiving! Answer if you bake! Or if you like cakes pies cookies and treats!!! )

Naya [18.7K]

Answer:

I do not bake but my mom is a professional baker.

Explanation:

A roof over my head and a warm home.

Plenty of drinkable water.

I don't have to go hungry.

I can enjoy the small and free pleasures of life.

Access to the internet.

My friends and family.

My health.

The kindness of people I have never met before.

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2 years ago

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FCalculate the pH of 1.00 X 10^-6 M HCI *​

FCalculate the pH of 1.00 X 10^-6 M HCI *