Hina

This page lists questions and answers that were posted by visitors named Hina.

Questions

The following questions were asked by visitors named Hina.

A weak acid has Ka= 1*10^-3. If [HA]= 1.00 M what must be [A-] for the pH to be pH 2.7? My work: pH= Pka + log(B/A) 2.7= 3 + log (B/A) Kw= Ka* Kb 1*10^-14= 1*10^-3 * Kb Kb= 1*10^-11 I don't know how to go about from here
16 years ago
find an equation for the line tangent to y=2-6x^2 at (-5,-148)
14 years ago
how do you solve 2x^2+x^3=96?
14 years ago
how do you solve 2x^2+x^3=96?
14 years ago
This is my first assignment in University and in a law course. I have learning disabilities and have trouble remembering and reading/writing. This is my first assignment. I read it but I don't understand a thing. Please help me out... "While researching a...
10 years ago
A cyclist rides at 5 m per second .the wheels of his bicycle have a circumference of 125 cm .how many complete turns does each wheel make in 5 seconds.
9 years ago
Out of 28 students,12 HV at least one brother.and 13 HV at least one sister.eight student have both sisters and brother s.how many students do not have either a brother or a sister.
9 years ago
Calcium bicarbonate reacts with hydrochloric acid to produce three products calcium chloride carbon dioxide and water (balance)
8 years ago
Ammonium supphate and sodium hydroide undergo a reaction to produe three products ammonia water and sodium sulphate (balance)
8 years ago
Lead(3) nitrate decomposes to form three products owygen lead(2) oxide and nitrogen dioxide (balance)
8 years ago
Carbon disulphide reacts with oxygen gas to produce carbo dioxide gas and sulphur dioxide gas (balance)
8 years ago
A field is 98m long and 37m wide. Vijay goes four times along its sides. How much distance does he cover
6 years ago
The sum of the 4th term and 7the term
6 years ago
Gopal has a Provision Store hi bro brought b2st 25 kg Tea Leaf at rupees 80 per kg and 30 kg Tea Leaf at Rs 110 per kg he mixed both the tea leaf and sold it at rupees 105 per kg find his gain or loss percent comparing quantities
3 years ago

Answers

The following answers were posted by visitors named Hina.