Rearrange the following equation and solve for x when the hydrogen ion concentration is 0.1 m. ph=5+logx (recall that ph=−log[h+]. use the hints if you do not obtain one of the answers.) view available hint(s) rearrange the following equation and solve for when the hydrogen ion concentration is 0.1 . (recall that . use the hints if you do not obtain one of the answers.) x=0.50 x=1×10−3 x=1 x=1×10−4

x=1×10−4

Step-by-step explanation:

we have

-----> equation A

The pH of a given solution is the negative log base  10  of the concentration of hydrogen ions,  H+

so

ph=-log[H+]  

In this problem we have the concentration of hydrogen ions

[H+] =0.1 M

That means that the pH of the solution will be

ph=-log[0.1]  

Rewrite

ph=-log[10^-1]  

ph=-(-log10)

Remember that

log10=1

substitute

ph=-(-1)

ph=1

substitute the value of ph in equation A and solve for x

applying property of logarithms

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (:

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.