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Hydrochloric Essay Topics & Paper Examples

The burette was cleaned with de-ionized water

To determine relative molecular mass of a soluble base, X2CO3 by carrying out an acid-base titration with the following reaction , knowing the amount of hydrochloric acid used and the amount of substance Z used. Hypothesis: The X in substance Z is a group 1 element because substance Z is a soluble metal carbonate and would most likely be sodium or potassium because these elements are commonly used. Materials 100 cm3 beaker, 250 cm3 beaker, 250 cm3 volumetric flask with stopper, filter funnel, glass pipette, glass rod, de-ionized water, Substance Z, 25 cm3 bulb pipette, pipette filter, 250 cm3 conical flask, burette, burette stand & holder, 0. 1225 M hydrochloric acid, methyl orange indicator. Procedure: Part 1: Making a standard…

Atomic mass unit

Substance Z is sodium carbonate because the relative atomic mass of X calculated is 22. 99. The actual relative atomic mass of sodium is 22. 99. Hence, we can conclude X is sodium. 6) If de-ionized water was added into the volumetric flask beyond the calibration mark, the exact concentration of the solution of standard Z will decrease but the number of moles of substance Z will still remain the same. Assuming that the volume of the solution of substance Z made is still 250 cm3, the number of moles calculated in that 250 cm3 solution of substance Z will be less because of the decrease in concentration. When the number of moles calculated decreases, the mass of one mole…