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Mrac [35]
3 years ago
14

The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a sol

ution is given by pH = -logx where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the pH if the hydrogen ion concentration is 1 x 10^-1
A. 13
B. 1
C. -13
D. -1
Mathematics
1 answer:
abruzzese [7]3 years ago
3 0
We need to know some log properties

1. when the base is not stated, assume that it is base 10 or log₁₀
2. log_aa^x=x

-log(10^-1)=log_{10}10^{-1}=-1

answer is D. -1
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Miquel went to the grocery store to buy tomatoes. He picked up 6 tomatoes and took them to the counter.
MArishka [77]

Step-by-step explanation:

Most accurate one would be how many pounds he bought. Occasionally, the number he bought could also be used

7 0
3 years ago
Two consecutive odd integers are such that one-third the smaller is greater than one-seventh of the larger one by 6. Find the nu
vaieri [72.5K]

Answer:

the number is 33 and 35 respectively

Step-by-step explanation:

The computation is shown below:

Let us assume X and X + 2 are the two consecutive odd integers

Now the equation is

(X ÷ 3) = ((X + 2) ÷ 7) + 6

(X ÷ 3) = (X + 2 + 6 × 7) ÷ 7

(X ÷ 3) = (X + 2 + 42) ÷ 7

(X ÷ 3) =  (X + 44) ÷ 7

Now do the cross multiplication

7X  = 3(X + 44)

7X = 3X + 132

4X = 132

X = 33

And, X + 2 = 33 + 2 = 35

hence, the number is 33 and 35 respectively

5 0
3 years ago
What is the answer to 4 (-1/2)?
Mila [183]

Answer:

-2

Step-by-step explanation:

4 0
3 years ago
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I need this question done by March 4,2019<br><br> What is the answer to<br> a + 2 = 5 + 4a ?
Ronch [10]
A = -1

Hope this is right

3 0
3 years ago
Read 2 more answers
Solve for x I need help again :/
vovangra [49]

Answer:

x = 6

Step-by-step explanation:

opposite sides of both angles are congruent/equal or have same measure.

Therefore:-

6x+2=38

6x=38-2

6x=36

x = 6

8 0
3 years ago
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