Hello! ^_^ For #5, why is the answer 1.22?.. I count 2 as the least # of sig figs when I divided 3.8 by 3.13. I thought the answer would be 1.2 x 10^13. Help pls thank you!
I know this was a year ago haha, but it's because of your calculator. Instead of putting 3.00 x 10^8. You would use the EE function on your calculator. On mine, you have to do 2nd then EE. The EE is the same thing as "x 10^". So if you were trying to type 3.00 x 10^8 you would instead have on your calculator 3.00E8. First type in 3.00 then click the 2nd button then the EE. Then type in your exponent. Hopefully this makes sense :)
Why is the answer rounded to 3 sig figs for the last question??? I thought it would be 2 sig figs because of the '3.8x10^-6' can someone please explain
how do your vids not have more views!!!!! I just watched like 5 of them and I learned more than I have in 3 weeks of class.
I need more of this tbh I never had this much fun doing chem!
This helped me a lot because i was struggling with this section
Wow I almost can't believe I understand questions like this now! Thanks🙂
I love your videos, they are so helpful and your teaching style is amazing
Hello! ^_^ For #5, why is the answer 1.22?.. I count 2 as the least # of sig figs when I divided 3.8 by 3.13. I thought the answer would be 1.2 x 10^13. Help pls thank you!
Thank you so much your videos help me so much😇😇
This helped me soo much thank you!!
Both of the melissa's are fabulous ❤🤩
for number 2, I got 4.36*10^21, how did you get 4.36*10^-7?
I know this was a year ago haha, but it's because of your calculator. Instead of putting 3.00 x 10^8. You would use the EE function on your calculator. On mine, you have to do 2nd then EE. The EE is the same thing as "x 10^". So if you were trying to type 3.00 x 10^8 you would instead have on your calculator 3.00E8. First type in 3.00 then click the 2nd button then the EE. Then type in your exponent. Hopefully this makes sense :)
Thank you. So much.
Do you have a guide for this concept?!
Again ur the best but I'd like a video on the best method to memorize chemical equations. Please
Why is the answer rounded to 3 sig figs for the last question??? I thought it would be 2 sig figs because of the '3.8x10^-6' can someone please explain
T😊hanks a lot madam ,you replace Mr Tyler dewit soon in youtube !
how can i like this video 2,000 times??????!!!!??
Oporo 😭😭
Am I the only one who getting the last question 1.22×10^15