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uysha [10]
3 years ago
5

Lactic acid (ch3ch(oh)cooh) has one acidic hydrogen. a 0.10 m solution of lactic acid has a ph of 2.44. calculate ka.

Computers and Technology
1 answer:
sammy [17]3 years ago
5 0

The answer is : Ka=0.000137

HA -> H+ + A-

0.10 x x

0.10-x +x +x

[H+]= 10^-2.44 = 0.00363

x= 0.00363

(0.00363)(0.00363)/(0.10-0.00363) = 0.000137

Ka=0.000137

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Ivan

Answer:

//here is code in java.

import java.util.*;

class Solution

{

// main method of class

public static void main (String[] args) throws java.lang.Exception

{

   try{

    // declare an initialize first string variables

     String st1="hello";

     // declare an initialize first string variables

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     // create another string variable

    String st3;

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    st3=st1;

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   }catch(Exception ex){

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}

}

Explanation:

declare and initialize two string variables.Create another string variable "st3". first assign value of "st1" to "st3" after then value of "st2" to "st1" and then  assign value of "st3" to "st2". This will exchange the values of both the string.

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8 0
3 years ago
Read 2 more answers
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