Answer:
B.4.75
Explanation:
Buffer solutions are the solutions which can resist the change in the pH up to some extent. They are the solutions of either weak acid and conjugate base of it or weak base and conjugate acid of it.
The pH of a buffer solution can be measured by the equation known as Henderson–Hasselbalch equation.
pH=pKa+log[base]/[acid]
A good buffer that buffer which has its acid's pKa within one pH unit of desired experimental conditions.
Thus, desired pH = 5.3
Preferable pKa = 4.3 - 6.3
<u>Answer - B. 4.75</u>
Answer:
The description for the given question is described in the explanation section below.
Explanation:
a...
interface Shape
{
public double getArea(); // creating a function
public double getPerimeter(); // creating a function
}
b and c...
- I preferred Interface although abstract classes are being used when children's classes associate certain aspect methods and variables and because all classes represent a certain method throughout the specific solution, not instance variables, it would be easier to construct an interface.
- Almost all of the period interfaces are favored because they have multiple inheritance capabilities.
Answer:
check a document for spelling errors
Explanation:
With a word processor, you can easily edit and make changes to a document, move text around in a document, add images, change fonts, check for spelling errors
The answer is D
Explanation:
I just took the test and got 100%
Answer:
#include <iostream>
using namespace std;
int main()
{
const int LENGTH = 9;
char sample1[LENGTH];
char sample2[LENGTH];
cout << "Enter 9 characters to be converted to uppercase: ";
for(int i = 0; i < LENGTH; i++){
cin >> sample1[i];
sample1[i] = toupper(sample1[i]);
cout << sample1[i];
}
cout << endl;
cout << "Enter 9 characters to be converted to lowercase: ";
for(int i = 0; i < LENGTH; i++){
cin >> sample2[i];
sample2[i] = tolower(sample2[i]);
cout << sample2[i] ;
}
return 0;
}
Explanation:
- Declare the variables
- Ask the user for the characters
- Using for loop, convert these characters into uppercase and print them
- Ask the user for the characters
- Using for loop, convert these characters into lowercase and print them
