the mean molar mass of the gas mixture is 25.161 kg/kmol – the gas constant R for the gas mixture is 8314×10−525.161=330.4×10−5bara.m3kg.K – the mean specific heat (Cp) at 15°C, 1.013 bara is46.8925.161=1.864 – the effective isentropic exponent for the gas mixture at ...
根据质量和 STP 求出气体摩尔体积 Finding the Molar Volume of a Gas given mass and STP定义变量P = STP 时的压力(1 atm)V = O2 气体的体积(未知)n = O2 气体的摩尔数(1.0 摩尔)R = 气体常数(约 8.314 J/mol-K)T = STP 时的温度(273.15 K)应用理想气体定律:PV = nRT重新排列方程以求解 V:...
Step 2.Add the molar masses of the elements,multiplying the molar mass of each element by the number of atoms of that element in the compound. MH2S=2MH+MS =2 1.01 gol" $%&+ 32.07 gol" $%& MH2S=34.09 gol Statement:The molar mass of H2S is 34.09 g/mol. ...
What is the molecular formula for C2H4 molar mass = 88 gmol? (a) C4H8O4 (b) C4H8O2 (c) C2H4O (d) C2H4O2 Empirical Formula: The empirical formula of a compound is the formula in which the subscripts are the least whole...
# Atom Molar Mass (MM) Subtotal Mass Subtotal Mass (g/mol) (%) (g/mol) Total Molecular Weight: !!! Lenntech BV cannot be held responsible for errors in the calculation, the program itself or the explanation. For question or remarks please contact us. This Calculator has been tested ...
The first step to finding the molar mass of Szomolnokite is to count the number of each atom present in a single molecule using the chemical formula, Fe{2+}SO4*H2O: ElementNumber of Atoms Fe(Iron)1 e(Electron)-2 S(Sulphur/Sulfur)1 ...
2C2H2 (g) + 5O2 (g) -> 4CO2 (g) + 2H2O (g)1. Find the standard molar enthalpy of formation for each compound.C2H2 (g) ΔfrHºm = +227.4 kJ/molO2 ΔfrHºm = 0 kJ/mol (is an element)CO2 (g) ΔfpHºm = -393.5 kJ/molH2O (g) ΔfpHºm = -241.8 kJ/mol2...
(b) A solution of glycerol(C3H8O3)in water was prepared by dissolving some glycerol in 500 g of water . This solution has a boiling point of100.42∘C. what mass of glycerol was dissolved to make this solution ? (Kbfor water =0.512K kgmol−1) ...
Calculate Molar Mass of CompoundCharlotte RennuitSasha D. Hafner
Question: Three moles of helium gas (molar mass M=4.00 g/mol) are in a rigid container that keeps the volume of the gas constant.Initially the rms speed of the gas atoms is 800m/s. Give your answers to 3 significant figure...