answer this question 1. Short Answers: (5 points each; 65 points total) 1. Conta

Question

answer this question

1. Short Answers: (5 points each; 65 points total) 1. Contact lens are acceptable eye protection in chemistry labs. (True/False) 2. Why are closed-toed shoes worn in lab? 3. When studying a chemical it is important to touch, taste, and smell it so that you know a lot about it. (True False) 4. What color is phenolphthalein in basic solution? 5. 0.1 moles of aluminum hydroxide, AI(OH), will neutralize 6. In titrating a saturated Ca(OH), solution with HCI you inadvertently pipete some of the solid moles of H' Ca(OH)2 into your sample flask. How will this affect tour determination of Ca(OH), solubility? Justify your conclusion 7. What are the units of amps" 8. Given Avogadro 's Number (6.02x10m e mole e') and the charge on a single electron Follow the units" (1 6x10'Cle ), estimate the Faraday Constant Which electrode loses mass in an electrolytic cell? Use Cu' Cu to show the reaction for mass loss 9. 10. Identify the ligands in ICrNHO)

Explanation / Answer

Q1

false, contact lenses are NOT acceptable, they do not protect eyes, and can cause any other chemical burn/reaction in the lense if any substance is spilled in it

Q2

we must avoid any spill contact with our feet

Chemicals can be dangerous if we weak any type of flipflop or somehting with no cover/protection

Q3

False, in chemical labs we avoid this, since we are not 100% sure of the chemical specie sinvolved

some could be toxic/hazardous

Q4

phenolphthaelin changees from transparent to pink in basic media

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.