Sabercat4life Sabercat4life
  • 02-05-2020
  • Mathematics
contestada

Anyone I’m really lost

Anyone Im really lost class=

Respuesta :

CHERLYNnotCHERRY
CHERLYNnotCHERRY CHERLYNnotCHERRY
  • 02-05-2020

Answer:

The answer is option 3.

Step-by-step explanation:

You have to substitute H+=2×10^(-9) into the equation of pH :

pH = -log[H+]

H+ = 2×10^(-9)

pH = -log[2×10^-9]

= 8.70 (3s.f)

Answer Link

Otras preguntas

what is the answer please.
find the product. y4 · y3
300 hundred a month is how much a day
What's 1/3 as a decimal
11 swimming pool water can be kept free of harmful bacteria by adding aqueous sodium chlorate(i),naocl. this reacts with water to produce hocl molecules which k
Philip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his 8 employees. How much does each employee receive?
Which of the following is not a category that can be used to interpret a text? A. ethical B. sociological/historical C. informal D. biographic/psychological
Calculate the area of the figure. Assume that all angles are right angles.
All the genes of all members of a particular population make up the populations ? A.genotype B.phenotype C.gene pool D.relative frequency
The decision to pass another vehicle requires