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natta225 [31]
3 years ago
15

A sample of grape juice has a hydroxide ion concentration of 1.4 × 10-10 M. Which of these equations will you use to find the hy

dronium ion concentration?
Mathematics
2 answers:
svet-max [94.6K]3 years ago
6 0
The choices are not given, however, the question can still be solved.

<u>We know that:</u>
pH + pOH = 14
<u>Converting the above equation to concentration form, we will get:</u>
[H₃O+] * [OH-] = 10⁻¹⁴

<u>We are given that:</u>
concentration of hydroxide ion [OH-] = 1.4 * 10⁻¹⁰ M

<u>Substitute with this in the above equation to get concentration of hydronium ion as follows:</u>
[H₃O+] * [OH-] = 10⁻¹⁴
[H₃O+] * [1.4 * 10⁻¹⁰ ] = 10⁻¹⁴
[H₃O+] = \frac{10^{-14} }{1.4* 10^{-10} }
[H₃O+] = 7.1428 * 10⁻⁵ M

Hope this helps :)
Olin [163]3 years ago
6 0

Answer:

C

Step-by-step explanation:

I just got it on Edge

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The graph that correctly shows the minimum amount due for a credit amount (x)  is graph B.

<h3>How to determine the graph with the minimum amount due?</h3>

First of all, we would assign a variable to the different amount of money as follows:

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  • Let y be the minimum amount due.

Translating the word problem into an algebraic expression, we have;

For a bill of less than $100, the entire amount is due:

0 ≤ x < $100, therefore, y = x

For a bill of at least $100 but less than $500, the minimum due is $100: $100 ≤ x < $500, therefore, y = 100

For a bill of at least $500 but less than $1,000, the minimum due is $300:

$500 ≤ x < $1000, therefore, y = $300

For a bill of $1,000 or more, the minimum due is $500:

Since the credit limit is equal to $2000, we have $1000 ≤ x < $2000 and y = $500

In conclusion, the graph that correctly shows the minimum amount due for a credit amount (x)  is graph B.

Read more on graphs here: brainly.com/question/16883029

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5 0
1 year ago
What are the next three terms in the sequence -27, -19, -11, -3, 5, ...?
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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7/4

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