1
answer
0
watching
99
views
12 Nov 2019
Can you please look over my Calculations and if they are wrong will you please explain and show how to do them. Also could you help me with the calculations that I didnât answer. Thanks!
Analysis Using Decomposition Reactions IN THIS EXPERIMENT, YOU WILL Heat a hydrate salt to drive off the water and use the collected data to determine the formula of the original hydrate. Decompose a sample of impure potassium chlorate by heating and use the collected data to determine the percentage of potassium chiorate in the original sample INTRODUCTION Many solid, crystalline, ionic compounds, called hydrates, contain definite amounts of water as a part of their crystal structures. This water of hydration can be driven from a solid by heating. When appropriate weighings are done, the mass and number of moles of water driven off can be calculated and the formula of the hydrate determined. Some crystalline solids do not contain water of hydration but will still undergo decomposition reactions when heated. When one of the products of decomposition is a gas, appropriate weighings allow the mass of gas given off to be calculated. This mass and the equation for the decomposition reaction can be used to calculate the mass of solid that was decomposed. This result can then be used to calculate the percentage of the solid present in a mixture that contains other solids PROCEDURE EXPERIMENTAL A. Determining the Formula of a Hydrate The water of hydration is included in the formula of solid hydrates as follows: MgClh 6HO. In this formula, the dot between the MgCl2 and the 6H O indicates that the water is a part of the crystal structure of the solid. The 6 preceding the H,O indicates that 6 water molecules are present in the crystal for every formula unit of Mgclh or that 6 moles (mol) of water are present for every mole of Mgclh In this part of the experiment, you will drive the water from a sample of barium chloride hydrate whose formula will be represented by Baci2·H2O. Your task will be to determine the value of n in the formula.
Can you please look over my Calculations and if they are wrong will you please explain and show how to do them. Also could you help me with the calculations that I didnât answer.
Thanks!
Analysis Using Decomposition Reactions IN THIS EXPERIMENT, YOU WILL Heat a hydrate salt to drive off the water and use the collected data to determine the formula of the original hydrate. Decompose a sample of impure potassium chlorate by heating and use the collected data to determine the percentage of potassium chiorate in the original sample INTRODUCTION Many solid, crystalline, ionic compounds, called hydrates, contain definite amounts of water as a part of their crystal structures. This water of hydration can be driven from a solid by heating. When appropriate weighings are done, the mass and number of moles of water driven off can be calculated and the formula of the hydrate determined. Some crystalline solids do not contain water of hydration but will still undergo decomposition reactions when heated. When one of the products of decomposition is a gas, appropriate weighings allow the mass of gas given off to be calculated. This mass and the equation for the decomposition reaction can be used to calculate the mass of solid that was decomposed. This result can then be used to calculate the percentage of the solid present in a mixture that contains other solids PROCEDURE EXPERIMENTAL A. Determining the Formula of a Hydrate The water of hydration is included in the formula of solid hydrates as follows: MgClh 6HO. In this formula, the dot between the MgCl2 and the 6H O indicates that the water is a part of the crystal structure of the solid. The 6 preceding the H,O indicates that 6 water molecules are present in the crystal for every formula unit of Mgclh or that 6 moles (mol) of water are present for every mole of Mgclh In this part of the experiment, you will drive the water from a sample of barium chloride hydrate whose formula will be represented by Baci2·H2O. Your task will be to determine the value of n in the formula.
Tod ThielLv2
23 Apr 2019