--log[], where II 9. The pH of a solution is calculated by using the formula pH is the concentration of the hydronium ions. a) If the pH of a solution is 4.2, what is the concentration of the hydronium ions? b) A strong acid has a pH less than 3. If the concentration of the hydronium ions is 1.6 x 10 in a particular solution, is the solution a strong acid? Explain.

Q: For this question, why do you have to add 14?

A:

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A: The matrix A=1-22-2302-11 By examining the matrix, we can observe that the third row (2 -1 1) is a…

Q: x+2=4  ¿que es x?

A: Given that : x+2=4. Therefore,    x+2=4⇒x=4-2⇒x=2.

Q: what is x+4=7

A:

Q: What's the answer?

A: Since you have posted multiple question, we will solve only first question for you. To get remaining…

Q: 3 4 B 2.

A: 23.(i)

Q: 6. x - 4y = 16 y 2

A:

Q: Since this is a second question, can you answer the other 2 sub parts

A:

Q: do 2nd question as well

A: To find the equation of the line tangent to the curve  at the point  on the curve.

Q: a. Sx-14= 8r+4

A: Given  a.) 5x -14 = 8x+4 b.) -12(-4x + 3 ) -2 = 1 +12 x

Q: -5,4y+14-2y=4

A: Given ,  4y + 14 - 2y = 4     ....... (1)  We have to find value of y  (1) implies

Q: I would like to ask why you subtracted 3-3 for question a should be 0?

A: From given data we have : mean μ=3Standard deviarion σ =2

Q: Simplfy 4/t-2÷1-2/t

A: Explanation of the solution is given below...

Q: Alex’s score for a game is given by the expression 10 - 9.2 - (2.9). Beth’s score for the same game…

A:

Q: How can the logarithmic expression be rewritten? Select True or False for each statement. Statement…

A: First I have written three rules of logarithmic , just use them for given Identities and see that .…