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Mashcka [7]
3 years ago
11

Hello sorry need help again, please just answer the pictures below.

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
5 0
X/1.3=16/5.2 answer is 4
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The pH of lemon juice at 298 K is found to be 2. 32. What is the concentration of mc014-1. Jpg ions in the solution? Use StartBr
sdas [7]

The concentration of ions in the solution of lemon juice whose pH value is 2.32 is 4.79×10⁻³ M.

<h3>What is pH value?</h3>

The pH value shows that how much a solution is acidic or basic. The range of the pH value lies between the 0-14.

The pH value can be calculated with the following formula.

\rm pH=log[H^{+}]

Here, [H⁺] is the molar hydrogen ion concentration.

The pH of lemon juice at 298 K is found to be 2. 32. Put this value of pH in the above formula as,

\rm 2.32=log[H^{+}]\\\ [H^{+}]=4.79\times10^{-3} \rm \; M

Hence, the concentration of ions in the solution of lemon juice whose pH value is 2.32 is 4.79×10⁻³ M.

Learn more about the pH value here;

brainly.com/question/940314

8 0
2 years ago
Determine wether the graphs of the given equations are parallel, perpindicular, or neither.
guapka [62]
I wrote answers in picture and I use Desmos app to solve this equations

7 0
3 years ago
Indicate the method you would use to prove the two ▲'s ≅. If no method applies, enter "none".
zysi [14]

Answer: None


Step-by-step explanation:

In the given picture , there are two triangles and their corresponding angles are equal.

So by AAA similarity criteria they are similar. But there is no other information is given to prove that they are congruent.

[∵ we know that congruent are similar but similar triangles may not be congruent.]

Therefore, there is no sufficient information to prove them congruent by using any given postulate.

Hence, the answer is "None".



4 0
3 years ago
Read 2 more answers
Solve the literal equation for y.<br> 4x - 2y = 10
MA_775_DIABLO [31]

Answer:

it could be that x is 4 and y 3

Step-by-step explanation:

3 0
2 years ago
Pls help me I know this is easy I’m just not smart
skelet666 [1.2K]

Answer:

4

Step-by-step explanation:

Given :

5c+cd where, C=\frac{1}{5}  and d=15

Now,

5×\frac{1}{5} +\frac{1}{5} (15)

=1+3

=4

Answer is 4

3 0
3 years ago
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