yh148321 yh148321

23-04-2021
Chemistry

contestada

What is the poH of a solution that has an [H+] = 7.7 x 10-7 M? *
O 7.9
6.5
O 2.3

What is the poH of a solution that has an H 77 x 107 M O 79 65 O 23 class=

Respuesta :

23-04-2021

Answer:

7.9

Explanation:

pH=-log([H+])

pH=-log(7.7×10⁻⁷M)

pH=6.113509275

Now, poH + pH = 14

Making poH the subject,

poH=14-pH

poH=14-6.113509275

poH=7.886490725

≈7.9

∴poH≈7.9

Answer Link

Otras preguntas

Which of the following three strategies can help you achieve the balance you need to manage multiple roles? (A) reducing stress, helping others, and handling pr

A model plane is 100 times smaller than an actual plane. The length of the model is 4.8 inches. What is actual length of the plane

What will the following segment of code output if 11 is entered at the keyboard? int number; cin >> number; if (number > 0) cout << "C++"; else c

write (6a) without exponents.(6a)²

You are investigating the role of physical activity in heart disease and suggest that physical activity protects against having a heart attack. While presenting

Why are the epidermis layers of the leaf coated in a waxy cuticle

Which of the following is NOT an effective means of aligning management goals with shareholder interests?A. Employee stock optionsB. Threat of a takeoverC. Mana

who is known for strenghtening the power of the french kings

Express the prime number 31 in the form 2^p − 1 where p is a prime number and as a difference of two perfect squares using the identity (a +b)(a-b) = a²-b²

Which sentence is a conclusion that can be validly drawn from the passage? A) Some human foods are not fit for animal consumption. B) Fruits and sugars are so