The molecular mass of the compound is 90 amu. What is the
2020年9月15日 · C2H5O. But since you are given 90 AMU there is an extra step!!!!! Since the mass of C2H5O is exactly 45, that means is half of what you are given! Molecular formula = (C2H5O)n. Empirical mass = 2X12+5+16 = 45 Amu. n = …
How many molecules of ethanol (C2H5OH) (the alcohol in
2021年1月20日 · 496 ml EtOH x 0.789 g/ml = 391.2 g EtOH. 301.3 g EtOH x 1 mol/46 g = 8.507 moles EtOH. 8.507 moles x 6.02x10 23 molecules/mol = 5.13x10 24 molecules of ethanol
What is C2H5O? - Answers
C2H5O- could be ethoxide ion (CH3CH2O- ion). No neutral molecule will have the formula, C2H5O.
EXTRACTIONS: What if methylene chloride was used as the
2017年10月15日 · Neither methylene chloride or ether are especially miscible with water, but methylene chloride is considerably more polar than diethylether.
How many elements are in chemical formula C2H5O plus O2
Three elements are present in this reaction: carbon, hydrogen, and oxygen. This is typical of combustion reactions, and the completed balanced equation for this reaction is: 4C2H5O + 11O2 --> 8CO2 ...
What is a molecule containing only carbon and hydrogen called?
2024年5月30日 · A 'Hydrocarbon' . Such molecules as methane, ethene, propyne are hydrocarbons. However, if the molecule contains any other element such as oxygen or nitrogen, then it is NOT a hydrocarbon. e.g ...
A compound is 54.53 % C , 9.15 % H , and 36.32 % O by mass
2020年2月9日 · Divide the percent mass by the atomic mall of each element to have 4.54 moles C to 9.08 moles H to 2.27 moles O. Divide these by the smallest to have the ratoi of 2 C to 4 H to 1 O.
What is the empirical formula for C2H6O? - Answers
6 天之前 · So divide both atom numbers by '2' ; 4/2 = 2 and 10/2 = 5. So '2' & '5' take the formula to its lowest empirical form of C2H5 . The empirical formula for C2H6O is CH3O. This can be determined by ...
In a 55.0-g aqueous solution of methanol, CH4O, the mole
Mole fraction CH3OH = 0.320. Mole fraction H2O = 0.680. Now convert to mass fraction or mass % mass CH3OH = 0.320 x 32 g/mol = 10.2 g CH3OH
Stoichiometry Moles equations | Wyzant Ask An Expert
2019年11月8日 · Al + 3 NaOH → Al (OH)3 + 3 Na. Assuming that the Al is not in limiting supply, we can find the moles of Al (OH) 3 produced from 6.82 g of NaOH, and then convert that to grams of Al (OH) 3. moles Al (OH) 3 produced: 6.82 g NaOH x 1 mole NaOH/40.0 g = 0.1705 moles NaOH. From the balanced equation, 3 moles NaOH produces 1 moles Al (OH) 3.