Chemistry, 05.05.2020 09:25, rakanmadi87
In a laboratory investigation, an HCl(aq) solution with a pH value of 2 is used to determine the molarity of a KOH(aq) solution. A 7.5-milliliter sample of the KOH(aq) is exactly neutralized by 15.0 milliliters of the 0.010 M HCl(aq). During this laboratory activity, appropriate safety equipment is used and safety procedures are followed.
1. Determine the pH value of a solution that is ten times less acidic than HCl (aq) solution.
2. State the color of the indicator bromocresol green if it is added to a sample of the KOH(aq).
3. Complete the equation for the reaction: HCl + KOH--> _ + _.
4. How the correct numerical setup to calculate the molarity of the KOH solution.
5. Explain in terms of aqueous ions, why 15.0mL of 1.0M HCl(aq) is a better conductor of electricity than 15.0mL of 0.010M HCl(aq) solution.
Answers: 2
Chemistry, 22.06.2019 10:50, mi364
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Chemistry, 22.06.2019 23:00, chastineondre7979
What is the formula of the ionic compound composed of calcium cations and chloride anions
Answers: 1
In a laboratory investigation, an HCl(aq) solution with a pH value of 2 is used to determine the mol...
Mathematics, 18.03.2021 06:50
Mathematics, 18.03.2021 06:50
Computers and Technology, 18.03.2021 06:50
Mathematics, 18.03.2021 06:50
Chemistry, 18.03.2021 06:50