Students were asked to answer a question at academics and to mention what is most important for them to succeed. The one which response stood out from the rest was practice. Successful people definitely not born successful; they become successful thru hard work and perseverance. This is how you can get your goals. just below some question and answer examples that you can certainly utilise to improve your knowledge and gain insight that will help you to continue your school studies.
What is the mass of 4.91 x10^21 platinum atoms?
To calculate the mass, go from atoms to moles and moles to grams:
Atoms …….. Moles………. Grams
From atoms to moles, use the Avogadro’s no. which is 6.022 x
10^23 and from moles to grams use atomic mass of Pt that is 195.08g.
So, 4.91 x 10^21 Pt atoms x (1 mole Pt / 6.022×10^23 Pt atoms) x (195.08g Pt
/ 1 mole Pt) = 1.59g Pt
Mass of 4.91 x 10^21 Pt atoms = 1.59g Pt
From the answer and question examples above, hopefully, they can possibly guide the student sort out the question they had been looking for and take notice of all the details stated in the answer above. Then will be able to have some sharing in a group discussion and also study with the classmate with regard to the topic, so another student also have some enlightenment and still keeps up the school learning.