We can can measure the concentration of HCl solution (a procedure called standardizing the solution) by reaction with pure sodium carbonate: 2H+ + Na2CO3à2Na+ + H2O + CO2. A volume of 27.35±0.04 mL of HCl solution was required for complete reaction with 0.9674 ±0.0009 g of Na2CO3 (FM 105.988 ± 0.001). Find the molarity of the HCl and its absolute uncertainty. The concentration of HCL by reaction with pure sodium bicarbonate 2H++Na2CO3a2Na+H2O+CO2 a volume of 27.35+_0.04mL of HCL solution is required for the complete reaction with 0.9674+- 0.009g of Na2CO3 find the molarity of HCl and absolute uncertain

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry