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1. 排列方式

1. ### Chemistry - Reacting Masses

...of moles of ions = 0 mol 2. Molar mass of NaHCO3 = 84 g/mol No. of moles of...16)/(y + 34)] * 100% = 1 - 24.3% y = 40 Relative atomic mass of X = 40 ...

分類：科學及數學 > 化學 2010年03月01日

2. ### mass spring system

This is mainly because the "effective mass" of the spring has not been taken into account. When...k] where T is the [eriod of oscillation pi = ...

3. ### Mass spectrometer

it is because the mass of ion is differentiate by it&#39;s speed. For mass spectrometer there...the certain distance to let the ion pass through, which ...

分類：科學及數學 > 化學 2006年11月12日

4. ### centre of mass (urgent)

..., find the coordinates of the centre of mass, (Xo, Yo). Take moment about the y-axis...57 m/s2 Therefore, acceleration of centre of mass = (2.35i - ...

5. ### Chem Formula mass

The formula mass of a pure substance (an element or a compound) is the sum of relative atomic masses...substance），才可以根據它們化學式（chemical ...

分類：科學及數學 > 化學 2009年06月13日

6. ### Chem Reactivity masses

... is +3. What is the relative atomic mass of X? (Relative atomic mass : O = 16.0.... What is the value of y? The mass on the both side of the equation ...

分類：科學及數學 > 化學 2010年12月23日

7. ### reacting mass

Molar mass of CuSO4 = 63.5 + 32.1 + 16x4 = 159.6 g mol-1 Molar mass of ...of CuSO4 = 159.6 + 18x5 = 249.6 g mol-1 Before heating : Mass of CuSO4•5H2O ...

分類：科學及數學 > 化學 2007年02月14日

8. ### 唔明白molar mass的定義

...12mole H既重量了 12g = 12mole H既重量 所以1mole H就重1g molar mass話比你知 1mole既substance 有幾重 睇單位 就係 g mol-1 姐係 1mol有幾...

分類：科學及數學 > 化學 2011年03月19日

9. ### reacting mass 問題

(6) Molar mass of sulphur dioxide = 32 + 2 x 16 = 64 g So 3.2 g contains...each sulphur dioxide molecule contains 3 atoms Molar mass of ammonia = 14 + 3 ...

10. ### 咩係 Mass??

mass 質量 質量是指物體中所包含的物質的量。以牛頓第二定律所表現出的質量稱為...