How to find the relative atomic mass of Cu, 🤔

Of course, we need to use the formula relative atomic mass, Ar :

Ar of X = (Average mass of one atom of X) ÷ (1/12 x mass of one atom of 12 C)

But we don't have the average atomic mass, so need to find it first 😄

---------------

Average atomic mass = ∑Qimi ÷ ∑Qi

Qᵢ = The relative abundance of an isotope of the element

mᵢ = The isotopic mass of the element

Unit = atomic mass unit (a.m.u)

---------------

The average atomic mass of Cu
= ∑Qimi / ∑Qi
= (69.0x63.0) + (31.0x65.0) ÷ (69.0+31.0)
= 63.62 a.m.u

---------------

Thus,

Ar of Cu
= 63.62 a.m.u ÷ 1/12 a.m.u
= 63.62

Can cancel unit a.m.u here, so there is no unit ! 😡 For Relative atomic mass, Ar

SOALAN PSPM #SM025

SOALAN PSPM #SM025

https://www.youtube.com/watch?v=XsTJaxwSCYQ

DISCUSSION SOALAN EXERCISE UPS 1 👆🏼👆🏼. Feel free to try it first! Good luck! ☺️

https://drive.google.com/drive/folders/1tKPqxddHdOy09DgKHAzAFvktVDN3E4iy

Bank soalan PSPM

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⚠️⚠️SEMUA SOALAN YANG SAYA DISCUSS DI YOUTUBE ADA DALAM NI. BOLEH CEK FOLDER "QUESTION SET DISCUSSION (SEM 1)" disini 🎥https://youtube.com/playlist?list=PL2ZWavn_FVyl_N_pVc1XzpP-UUTZH9go2 .

semoga dapat membantu. 😌

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Tips Pointer untuk memohon Program Ijazah Sarjana Muda Perubatan & Pembedahan / Doktor Perubatan / Pergigian / Farmasi

4.0 -3.8
- UM/USM/UKM/UPM (UPU)

3.79-3.75
- UiTM/UMS/UNIMAS (UPU)

3.0-3.5
- Private Uni eg MSU, MAHSA, Lincon college, Unikl etc (Direct intake)

Fakulti Kejuruteraan

✅Universiti Malaya
KEJURUTERAAN MEKANIK - 86.26 %
KEJURUTERAAN KIMIA - 87.91 %
KEJURUTERAAN AWAM - 92.39 %
SAINS KOMPUTER (KEJURUTERAAN PERISIAN) - 90.96 %

Markah Merit = 90% CGPA + 10% Kokurikulum

Jadi pointer minimum untuk Fakulti Kejuruteraan di UM = 3.70 jika markah koko adalah 7 ( admin ambik paling average)

Sumber : UPU

Tips UPU :

- Kejuruteraan tidak sama dengan Teknologi Kejuruteraan

- Ijazah Perubatan tidak dengan Ijazah Bioperubatan