Themolecular weight(formula weight) of a compound is the sum of the atomic weights of all the atoms in a molecule and can be determined by a variety of methods. Crude oil, being a complex mixture of (at least) several thousand constituents requires qualification of the molecular weight as ...
A 0.109 g sample of a pure gaseous compound occupies 112 ml at 100 degrees and 750 torr. What is the molecular weight of the compound? What is the molar mass of a compound if a gaseous sample has a density of 3.140 g/L at 30 degree C ...
The molecular formula of a compound is C5H10O,its mass spectrum shows some obvious peaks at m/z 29 (59%), m/z 57 (100%) and m/z 86 (21%). This compound should be ___. A、CH3CH2CH2COCH3 B、CH3CH2COCH2CH3 C、CH2=CHCH2CH2CH2OH D、CH3CH=CHCH2CH2OH 点击查看答案进入小程序...
A molecule is a chemical compound made up of one or more atoms. What is molecular weight? The molecular weight of a molecule is the sum of the weights of the individual atoms that make up the molecule. A simple molecular weight definition is just the weight of a molecule. Since atoms ...
A compound is 54.53% C , 9.15% H , and 36.32% O by mass. The molecular mass of the compound is 132 amu. What is its molecular formula? A compound has the % composition by mass that is 87.8% C and 12.2 % H. What is the molecular formula if it ...
molec′ular weight′ n. the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule.Abbr.:mol. wt. ...
5. Compound K has a relative molecular mass of 124. A 200 cm3 of another sample contains 248 g of K.(a) Calculate the concentration of K in g/dm3.concentration =... g/dm3 [1](b)Calculate the concentration of K in mol/dm3.concentration =... mol/dm3 [1](c)Reacting K with...
A high molecular compound useful as a non-radioactive carrier, which comprises at least one unit of (1) an asialoglycoprotein acceptor-directing compound and at least one unit of (2) a chelate-forming compound chemically bonded thereto, and which may be labeled with a radioactive metallic ...
molec′ular weight′ n. the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule.Abbr.:mol. wt. ...
Molecular weight of X2Y3=2×30+3×20 =60+60 =120 ∴ The compound is X2Y3 Option C is correct. Was this answer helpful? 144Similar Questions Q1 A compound of X and Y has an equal mass of them. If their atomic weights are 30 and 20 respectively. The molecular formula of that...