CHEM QUESTION HELP PLZ ANSWER ASAP (THIS IS A CHALLENGING QUESTION)?
ok, so for my lab in chemistry, we had to: find the percent yield of CO2 obtained from the reaction of alma-seltzer with water as in the reaction: - NaHCO3 + H2O --> CO2 + H2O + NaOH for some reason, my teacher had us split the tablet in half...anyways what we had to do was take a graduated cylinder, fill it up to 100 mL and pour that into a glass bottle. We had to fill the glass bottle up to the very top. Then we had to fill up a box with water (only half way). Then we had to take the glass bottle and put a square piece of glass on top of the bottle and flip it over. Then we had to put the upside down glass bottle in the box filled with water. Then we had to remove the square piece of glass. Then we had to tilt the glass bottle so we could put the 1/2 tablet of alka seltzer in it (by using tweezers). After inserting the tablet, we had to wait for the bottle to stop fizzing or bubbling. Then we had to slide the glass piece back underneath the bottle and flip it over. We had to repeat the same process for the other 1/2 tablet. 1.14 g = 1/2 of tablet water before tablet: 269 mL water after tablet: 254 mL ~~~~~~~~~~~~~~~~~~~~~~~~ 1.31 = 1/2 of tablet water before: 256 mL water after: 247 mL my teacher gave us some formula like : ----PV =nRT (i guess the n is moles of CO2???) she gave us another one like: ----P = PCO2 + PH2O ---700 = PCO2 + 21.1 TORR IMPORTANT INFO: 7.60 T ( idk what this means) the room was 23 degrees Celsius SOMEONE PLEASE HELP ME
What are questions about chemistry that I can get my teacher stuck with?
When you learn the Three States of Matter (Solid, Liquid, Gas) ask them how many others there are.There are More than Three States of Matter... Many More
Should I become a HIgh School Chemistry teacher?
I want to make a difference in people's lives which is why I want to become a teacher. I'm going to teach high school for sure and I'm going to study chemistry because it's a challenge and I don't want to give up doing math which I'm good at. Is it a good time to become a chem teacher? I know teachers don't get paid much, I don't care. If I become a chem major what should I minor in? What would help me the most? The more information the better. Any information helps. Tips from current teachers would be greatly appreciated. Oh yeah and would it be good if I got a masters in Chem afterwards to help me out??
Challenging chemistry problem- are you a chem whiz?
You have to figure out the reaction which is leading to a precipitate and what the precipitate is. My guess is that Cr(OH)3 is being ppt out. So you would take the mole wt of this and divide 2.06 g of ppt by this mole wt to get moles of Cr(OH)3. Then you can find the g-ions of [OH-] = 3*moles of Cr(OH)3. Since 100 ml of 0.4 M HCl is enough acid to neutralize 0.04 g-ions of {OH-} from the NaOH, the initial amount of [OH-] would have been the 3*moles Cr(OH)3 + 0.04. From this and your initial NaOH solution volume, you can figure concentration.
How do I deal with a really bad high school chemistry teacher?
I had this exact problem for the last two years.Oddly enough, you’re better off if your class is AP/ IB/ standardized. Here’s what you should do:Obtain a textbook/ in-depth prep book. Make sure it has good practice problems and closely follows the syllabus.Take detailed notes out of said textbook/ in-depth prep book. If you’re unclear about anything, ask your teacher (who will probably be better one on one) or find another chemistry teacher at your school to troubleshoot.Do practice problems once you finish each unit’s notes. If you’re in AP Chemistry, Khan Academy is useful. If not, use your textbook to do practice problems.Take practice exams. These should also be included in your textbook.I followed this method to self-study a 5 on the IB Chemistry SL exam last year (1 point away from a 6 though!). It took me about three weeks, although I’d recommend longer.Recommended Resources (AP):Khan AcademyAP Chem NotesRecommended Resources (IB):Oxford Textbook and Course CompanionRichard Thornley’s Youtube Channel
Who is the best chemistry teacher in Faridabad?
Mr. Munish Mittal(IIT Delhi Graduate) is no doubt, the Best Chemistry teacher in the entire Faridabad. Whatever your Goal Might be, JEE MAINS or JEE ADVANCED or NEET or 12th CBSE BOARDS, he covers every aspect of each and every type of exams be it Competitive or Boards. He tries to make the kid find Chemistry, an Interesting Subject. His approach to the different kinds of topics is the same i.e. he makes the kid try hard to find the answer himself rather than just spilling out the answer to him. He makes the topic so understandable that each and every student can understand the concepts with ease. He motivates the students and makes them practice a lot of questions so that the students have a clarity in their concepts and plays an important role in making Chemistry a strong subject of theirs. His striving efforts can be seen not only in the various sheets, assignments, DPPs , Modules and Tests that he prepares himself but also in the hard work he puts up in his each and every lecture. He helps out the students even with Counseling And Motivation. His Tuitions were worth every single penny, and are totally worth waking up at 5 o clock in the morning every Weekend (and for extra classes too !!). The classes never get monotonous or boring, rather it is filled with Jokes and academic related challenges for the students. There are a lot of Chemistry tuition teachers in Faridabad but if you want to have full command on chemistry whilst having Fun, he's the most apt teacher in my view. His hard work can be seen in students currently studying in different IITs, NITs, NSIT,DTU, BITS, AIIMS, LHMC etc.His Tuitions take place in Sector 17, Faridabad.You can reach to him on 9910655554
Should I teach Chemistry or Math?
Thinking seriously about eating the monetary loss and diving into my passion. I'm a German Major, but I want to minor in something that is taught perhaps a bit more often. I have some Chemistry Background- and a little bit of Calculus. The question is really- how much is each needed? Are Chemistry teachers hired on to teach JUST chemistry? Which minor should I pick- I'm pretty passionate about both of them, the real question is where the most help is needed- because that's the thrust of my whole teaching career- helping make the world a better place (Rainbows growing out of the woodwork are crushed almost immediately by deadly teaching environments- but the sun shines on!).