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Elena-2011 [213]
3 years ago
14

PLEASE CAN SOMEONE HELP I WILL GIVE BRAINLIEST!!! IF YOU DO ALL 10 QUESTIONS I UPLOAD I WILL GIVE AWAY A LOT OF POINTS!!!

Chemistry
1 answer:
dalvyx [7]3 years ago
4 0

it is binary i think

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Paul determines that the hydrogen ion concentration of his unknown solution is 3.60×10^-5 M. what is the pH of this solution?​
vivado [14]

Answer:

<h2>pH = 4.44 </h2>

Explanation:

The pH of a substance can be found by using the formula

p H  =  -   log[ H^{ + }  ]

where [ H+ ] is the hydrogen ion concentration of the solution

From the question

[ H + ] = 3.60 × 10^-5 M

So the pH is

pH =  -  log(3.60 \times  {10}^{ - 5} )  \\  =4.44369749923

We have the final answer as

<h3>pH = 4.44 </h3>

Hope this helps you

4 0
3 years ago
Help help please
ladessa [460]

Substances that exist in solution almost completely as ions are called strong electrolytes. Therefore, the answer is C.

8 0
3 years ago
g The reaction C(s) + CO2(g) → 2CO(g) is spontaneous only at temperatures in excess of 1100 K. We can conclude that a. ΔG° is ne
mel-nik [20]

Answer:

c. ΔH° is positive and ΔS° is positive.

Explanation:

Hello,

In this case, as the Gibbs free energy for a reaction is defined in terms of the change in the enthalpy and entropy as shown below:

\Delta G=\Delta H-T\Delta S

Thus, as the reaction becomes spontaneous (ΔG°<0) at temperatures above 1100K (high temperatures), it necessary that c. ΔH° is positive and ΔS° is positive as the entropy will drive the spontaneousness as it becomes smaller than TΔS°.

Best regards.

7 0
3 years ago
2. How can you determine if an acid is binary when given the<br> formula?
AysviL [449]

Explanation:

Binary acids are molecular compounds that consists of two components.

The components are Hydrogen and a non metal. Examples of binary acids include; HCl, HF etc.

The way to identify binary acids is to spot the hydrogen and the non metal.

7 0
3 years ago
A 125 ml sample of a liquid has a mass of 0.16 g. What is the density of the liquid in g/ml?
Amanda [17]
I can’t do math right now but the formula is density = mass / volume
6 0
3 years ago
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