tinaejah tinaejah

14-06-2018
Chemistry

contestada

What is the concentration of H+ ([H+]) of a solution with a pH of 2.5 ?

Respuesta :

24-06-2018

[H3O+] = 10^-pH.

[H3O+] = 10^(-2,5) = 0,0032 moles/dm3

Answer Link

Otras preguntas

A circle has a circumference of 16'pi' feet. What is the radius of the circle, in feet? A. square root of 8 B. 4 C. 8 D. 16 E. 32

the point P divides the join of (2,1) and (-3, 6) in the ratio 2:3. does P lie on the line x-5y+15=0?PLEASE ANSWER FAST IT IS KINDA URGENT...

If n = 8 and 16 · 2^m = 4^(n – 8), then m = ? F. –4 G. –2 H. 0 J. 1 K. 8

In the equation x^2 + mx + n = 0, m and n are integers. The only possible value for x is –3. What is the value of m ? A. 3 B. –3 C. 6 D. –6 E. 9

Find all real numbers x such that x^4 ≤ 8x^2 − 16.

4b×3b-2b=102 what is b

Solve and simplify: 2/3 x 3/5 x 5/10 x 6/8 = A: 1/5 B: 1/2 C: 3/20 D: 1/4

Lines p and n lie in the standard (x,y) coordinate plane. An equation for line p is y = 0.12x + 3,000. The slope of line n is 0.1 greater than the slope of line

If r = 9, b = 5, and g = −6, what does (r + b − g)(b + g) equal? F. −20 G. 0−8 H. 0 8 J. 19 K. 20

Which of the following statements must be true whenever n, a, b, and c are positive integers such that n < a, c > a, and b > c ? A. a < n B. b –