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For a given material, mass and volume are proportional to each other. In classical physics, the...
I'm afraid not. a) Mass of C: 5.28 x 12.0 / ( 12.0 + 16.0 x 2 ) = 1.44g Mass...2009-02-19 21:24:45 補充： You have got the masses of C and O wrong ...
....jpg?t=1230690275 Assume the two different masses be MX and MY respectively. In space where there is no gravity...
If the equation is balanced, the total mass of reactants should be equal to that of the ...product, you wanted, in the equation. 4) calculate out the mass ...
1. Let M be the atomic mass of X. Percentage by mass of O in X2O5 : (16*5... = [(14.35 - 8.05)/14.35] * 100% = 43.9% b) The atomic mass of M = 161 - (32 ...
如果星期六晚去左mass (提前彌撒), 咁星期日就可以唔去.... 圖片參考：http://tw.yimg.com/i/tw/ugc/rte/smiley...common. 圖片參考： ...
...to Fe = 2 : 4 = 1 : 2 number of moles of Fe2O3 = mass / molar mass = 80.0 / (2 X 56.0 + 3 X 16.0) = 80.0 / 160.0 = 0.5 mol...
...obligation to answer the further questions. A photon has no (rest) mass, but it has momentum. Quantum mechanics tells that...
...mol in 250cm^3 of acid = 0.005 X (250 / 25) = 0.05 mol 6.30 / relative molecular mass of H2X = 0.05 Relative molecular mass of H2X = 126g (2) (1... ...
...solution Refer to the unit from the question, molecular weight means molar mass. Molarity(M)= number of moles(mol) / volume(dm^3) 0...