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LiRa [457]
3 years ago
14

Determine the pH of a solution of 1.45 M HCl solution

Chemistry
2 answers:
Vitek1552 [10]3 years ago
8 0
You need to know the concentration expressed in molarity
Anon25 [30]3 years ago
5 0

Answer: To calculate the pH of HCl you need to know the concentration expressed in molarity (mol HCl/L solution

Explanation:

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What are the formulas for the ionic compounds named sodium iodide and magnesium iodide
bixtya [17]

Sodium Iodide: NaI

Magnesium Iodide: MgI2

8 0
3 years ago
what is the mass of water vapor produced when 3.2 liters reacts with 8.7 liters of oxygen gas at STP?
uranmaximum [27]

Answer:

2.57g

Explanation:

First, let us write a balanced equation for the reaction. This is illustrated below:

2H2 + O2 —> 2H2O

Next let us determine the limiting reactant. This is achieved as follows:

From the equation,

2L H2 required 1L of O2.

Therefore, 3.2L of H will require = 3.2/2 = 1.6L of O2

From the calculation above, O2 is excess because the volume of O2 given from the question is far greater than the volume of O2 obtained from our calculation. Therefore, H2 is the limiting reactant.

Now let us covert 3.2L of H2 to mole. This is illustrated below:

1mole of a gas occupy 22.4L at stp

Therefore, Xmol of H2 will occupy 3.2L i.e

Xmol of H2 = 3.2/22.4 = 0.143mol

From the equation,

2moles of H2 produced 2moles of H2O.

Therefore, 0.143mol of H2 will also produce 0.143moles of H2O.

Now, we can obtain the mass of the water vapour produced by convert 0.143mol of H2O to gram. This is illustrated below:

Molar Mass of H2O = (2x1) + 16 = 2 + 16 = 18g/mol

Number of mole of H2O = 0.143mol

Mass of H2O =?

Mass = mole x Molar Mass

Mass of H2O = 0.143 x 18 = 2.57g

The mass of water vapour produce is 2.57g

8 0
3 years ago
I’m stuck on these, please help me :(
erma4kov [3.2K]
The first one is Solid, or A.
The second: B or liquids.
Third: also B I think.
Hope this helps.
8 0
3 years ago
Read 2 more answers
C. 840 D. 2053...........
faust18 [17]
They have hydrogens numbers wrong its 1.008 not 1.01
4 0
3 years ago
A reddish layer of rust can form on old iron nails and bikes. In this chemical reaction, iron reacts slowly with oxygen in the a
Molodets [167]

Answer:

Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:

Explanation:

iron + oxygen → iron oxide

5 0
3 years ago
Read 2 more answers
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