WEBDEVELOPMENT Midterm: update and delete
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Exercise 1: Determining the Concentration of Acetic Acid
Data Table 1. NaOH Titration Volume.
Initial NaOH Volume (mL) | Final NaOH Volume (mL) | Total volume of NaOH used (mL) | |
Trial 1 | 9 | .5 | 8.5 |
Trial 2 | 9 | .25 | 8.25 |
Trial 3 | 9 | 0 | 9 |
Average Volume of NaOH Used (mL) : 8.58 |
Data Table 2. Concentration of CH3COOH in Vinegar.
Average volume of NaOH used (mL) | Concentration CH3COOH in vinegar (mol/L) | % CH3COOH in vinegar |
* I don't know if I am doing it correctly, and end up with crazy numbers. Can someone PLEASE break it down easily for me?
Question
The manufacturer of the vinegar used in the experiment stated that the vinegar contained 5.0% acetic acid. What is the percent error between your result and the manufacturerâs statement?
UPDATE: NaOH is 0.5M
I DO NOT know CH3COOH.... It was for me to find out in that chart.....
UPDATE AGAIN: I know he acedic acid was not given. That was suppose to be what I am figuring out. This is what it says for data:
UPDATE AGAIN: I DO NOT KNOW THE VOLUME BECAUSE THAT IS WHAT IS IN THE BLANKS THAT I NEED TO FIGURE OUT!!!!!!!!!!!
21. In order to set up employer defaults forpayroll liabilities and expenses, which of the following would oneselect?
Employee Defaults/General
Employee Defaults/EmployeeFields
Employee Defaults/CompanyFields
Payroll & EmployeesNavigation Center; Pay Employees
Pay Info tab Withholding Info tab Employee Fields tab |
Health insurance voluntarydeductions Contributions None of the above |
Gross pay plus total payrolltax withholdings and total voluntary deductions Gross pay minus total payrolltax withholdings and total voluntary deductions Gross pay minus total payrolltax withholdings |
Social Security taxwithholdings Medicare taxwithholdings Federal income taxwithholdings |
Social Security taxwithholdings Medicare taxwithholdings Federal income taxwithholdings |
Employees & PayrollNavigation Center, click on the Pay Employees icon and select SetUp Payroll Service Employees & PayrollNavigation Center, click on the Employees icon and select Set UpEmployee Defaults Tasks; Payroll Entry |
Employee List Employee Directory Employee Record |
Social Security taxwithholdings Medicare taxwithholdings Federal income taxwithholdings |
Question 30. 30. The tab on the employeeaccount that stores the default general ledger accounts PTCA useswhen posting employee paychecks is called the: |
General tab
Pay Info tab
Withholding Info tab
Employee Fields tab