Percentage composition (Percentage by mass): Quantitative aspects of chemical change

In this video we cover Percentage composition which is a part of the Stoichiometry topic for grade 10, 11 and 12 learners (also known as the quantitative aspects of chemical change). We look at how to calculate the percentage composition of a compound or calculate the percent by mass.

#chemistry #physics #stoichiometry #grade11 #grade10 #grade12

[_otsilee]

One of the best teachers, keep it up mam❤🎉

[Fentswe.]

Mam there are absolutely NO WORDS to explain how helpful this really is. THANK YOU SO MUCHH 😘😘💫✨✨

[_.nktko]

Can you please do a Limiting Reagent/Reactant

[TheGreenFlameXDYT]

Thank u so much, mam❤❤❤❤ and keep up the amazing work

[TheGreenFlameXDYT]

Thank u mam❤❤❤❤ and keep up the great work 👍 😊😊😊

[Tumelo-kh]

There's an easier way to calculate the last answer.... find out what's the molar mass of nitrogen in the compound, then divide it by the total molar mass.. then multiple by 30.... boom done. I'm not sure ur gonna get the same amount of marks, but yeah, it's the same answer.

[jannettnyandwi]

Can you please do a video going through grade 9 math & physical science past papers 🙏🏽

[SelaeloKarabo-tqpm]

Mam please do ideal gas video for grade 11 ❤

[Bagbaboots]

Grade 11 Tech Science Term 3 if possible🙏

[sibuyinehemiadorcus]

Ma'am can you please do acids and bases❤

[tlotlo]

Ma'am can we have videos on limiting reagents

[tlotlo]

Hi ma'am

Can we have more problems like the last one of nitrogen❤

[Lethu]

Mem can you pls make the videos a bit shorter maybe 5-10 minutes pls mem 🙏🙏love all your videos but if the video is long it's difficult to understand and keep watching it ❤

[tlotlo]

Hi ma'am

Can we have more problems like the last one of nitrogen❤