Answer:
Number of moles = 0.12 mol
Explanation:
Given data:
Mass of carbonate = 6.5 g
Moles of carbonate = ?
Solution:
Number of moles = mass / molar mass
Molar mass of carbonate = 60 g/mol
Now we will put the values in formula:
Number of moles = 6.5 g/ 60 g/mol
Number of moles = 0.12 mol
Answer:
THE EMPIRICAL FORMULA OF THE SUBSTANCE IS C2H5NO
Explanation:
The steps involved in calculating the empirical formula of this substance in shown in the table below:
Element Carbon Hydrogen Nitrogen Oxygen
1. % Composition 40.66 8.53 23.72 27.09
2. Mole ratio =
%mass/ atomic mass 40.66/12 8.53/1 23.72/14 27.09/16
= 3.3883 8.53 1,6943 1.6931
3. Divide by smallest
value (0.6931) 3.3883/1.6931 8.53/1.6931 1.6943/1.6931 1.6931/1.6931
= 2.001 5.038 1.0007 1
4. Whole number ratio 2 5 1 1
The empirical formula = C2H5NO
Answer:
Rayon is a synthetic fiber or man-made fiber or artificial fiber as it is prepared from the natural raw material called cellulose. ... The kind of rayon fibers which imitate the feel and texture of natural silk is therefore termed as 'artificial silk'.
Answer:
.
Explanation:
Oil or Lipid + Base lead to Glycerol and Soap
