Grade 11Physical Chemistry
calculate the empirical formula of gold chloride which contains 35.1% of chlorine.[atomic mass of Au=197]
calculate the empirical formula of gold chloride which contains 35.1% of chlorine.[atomic mass of Au=197]
2 Answers
varun
Approved Tutor Answer9 Years agoHELLO KAVYA,
we are given that a compound conatins chlorine = 35.1%
and the rest will be gold
therefore,
100gm of a compound will contain = 100-35.1
=64.9%
molar mass of chlorine = 35.5g
so,number of moles in 35.1gm of chlorine = given mass/molar mass
=35.1/35.5
= 0.988 moles
Molar mass of gold = 197gm
number of moles in 64.9 gm of gold = given mass/molar mass = 64.9/197
= 0.329 moles
NOW,we will calculate the simplest ratio of the elements by dividing the number of moles of each element by smallest value 0.329
Simplest ratio = Au(0.329/0.3289) Cl(0.988/0.329)
HENCE THE EMPIRICAL FORMULA OF THE COMPOUND IS AuCl3
Chitra
100 gm of compound
Other Related Questions on physical chemistry
Which of the following aqueous solutions remains neutral after
electrolysis
Which of the following aqueous solutions remains neutral after
electrolysis
electrolysis
physical chemistry
Last Activity: 3 Years ago
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
physical chemistry
Last Activity: 3 Years ago
True or false when an electron in ground state of hydrogen atom is excited with an energy that is greayer than e2-e1 but less than e3-e1 the electron will get excited n=2
True or false when an electron in ground state of hydrogen atom is excited with an energy that is greayer than e2-e1 but less than e3-e1 the electron will get excited n=2
physical chemistry
Last Activity: 3 Years ago
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
physical chemistry
Last Activity: 4 Years ago