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3 years ago

What is the [H+] concentration of a solution with a pH of 3.78

Chemistry

1 answer:

lianna [129]3 years ago

6 0

Answer:

[H+] = 1.66 x $10^{-4}$

Explanation:

To find the [H+] concentration of a solution, we can use the formula:

$[H+] = 10^{-pH}$

Let's plug in the pH.

$[H+] = 10^{-3.78}$

Evaluate the exponent.

[H+] = 1.66 x $10^{-4}$

Hope this helps!

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Chemical formula for solid lead II sulfide ore burns in oxygen gas the products are solid lead II oxide and sulfur dioxide gas

krok68 [10]

2PbS(s) + 3O₂(g) = 2PbO(s) + 2SO₂(g)

8 0

3 years ago

Dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas. How many grams of oxygen are formed when 10.0 g of dinit

lina2011 [118]

Answer:

There is formed 3.6352 grams of oxygen

Explanation:

Step 1: The balanced equation

2N2O(g)⇔2N2(g)+O2(g)

Step 2: Calculate moles of dinitrogen monoxide

Moles = mass/ Molar mass

Moles of N2O = 10 grams of N2O / 44.01 g/mole

Moles of N2O = 0.227 moles

Step 3: Calculate moles of oxygen

When 2 moles of N2O is consumed, there is produced 1 mole of O2 ( and 2 moles of N2)

That means for 0.2272 moles of N2O consumed, there is produced 0.1136 moles of O2

Step 4: Calculate mass of O2

mass of O2 = moles of O2 * Molar mass of O2

mass of O2 = 0.1136 moles * 32 g/moles

mass of O2 = 3.6352 grams

There is formed 3.6352 grams of oxygen

5 0

3 years ago

5. Calculate the number of molecules of carbon tetrachloride in 0.32 mol of

Paha777 [63]

To Find :

The number of molecules of carbon tetrachloride in 0.32 mol of

carbon tetrachloride.

Solution :

We know, 1 mole of any element/compound contains $6.022 \times 10^{23}$ number of atoms/molecules.

So, Number of molecules in 0.32 mol are :

$n = 0.32 \times 6.022 \times 10^{23}\\\\n = 1.93 \times 10^{23}$

Therefore, number of molecules of carbon tetrachloride in 0.32 mol of

carbon tetrachloride are $1.93 \times 10^{23}$ .

7 0

3 years ago

What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a solution to a volume of

docker41 [41]

0.600
D) 0.600 is the final concentration of the solution of KCl.
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6 0

2 years ago

How many particles are in 3 moles?

Mekhanik [1.2K]

We know that 1 mol= 6.02*10^23 particles.

3 mol* (6.02*10^23 particles/ 1 mol)= 1.81*10^24 particles.

The final answer is 1.81*10^24 particles~

3 0

3 years ago