A- B- According to the TCC Policy listed in your Safety and Glassware Guide, all

Question

A-

B-

According to the TCC Policy listed in your Safety and Glassware Guide, all of the following are the proper policy regarding working with a hot place EXCEPT: As long as the set-up is as described in the procedure, hot water baths can be left unattended temporarily while obtaining other laboratory materials Hot glassware should be ralsed using loosening the ring stand clamp's screw, and lifting away from the heat source before re-tightening the screw. Hot glassware should never be placed directly on the counter as it could shatter Adding boiling chips to water baths can prevent splattering. Students should never heat empty glassware

Explanation / Answer

From the methane reaction:

MW of CH4 =16 g/mol

mol of methane = mass/MW = 6.55/16 = 0.409375 mol of CH4

now

1 mol of methane = 890.4 kJ released

0.409375 mol of methaen = 0.409375*890.4 = 364.507 kJ will be released

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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