- How would you tell if the number of sample moles are too high or too low?

- In water of hydration lab if heating cycles are stopped before the sample reaches a constant mass how will this affect the number of waters of hydration
- Why will water of hydrated salt be low if it is not heated high enough?

- Part b 1 the hydrated salt is overheated and the anhydrous salt thermally decomposes one product being a gas will the reported percent water in the hydrated salt be reported too high too low or be unaffected explain
- What effect does spilling some of the sample out of the crucible have?

- Dehydration experiment if sample spattered out of by heating crucible what will happen
- If all the water in not completley removed from the compound during the heating will the percent composition be higher or lower?

- Assuming you know the formula of the associated anhydrous ionic compound do you think it is more useful to have the mass percent of water in the hydrate or the percentage composition
- If heat fails to remove all waters of hydration would it increase or decrease the enthalpy of hydration?

- In part a of the experiment a student fails to heat the crucible
- Would percentage of water be higher or lower after decomposition in a hydrated salt?

- Part a 1 during the cooling of the fired crucible water vapor condensed on the crucible wall before its mass measurement the condensation did not occur following the decomposition of the hydrated salt in part b will the reported percent water in the hy
- Would the waters of hydration in a hydrate sample be affected if a small amount of the solild compound splattered out of the crucible?

- Suppose in step 8 of part a of the experiment that a student fails to heat the crucible and hydrate sample long enough to drive off all of the watrer
- Would the of h20 calculated be too high or too low if a sulfate was heated too strongly?

- Effects on percentage of water if copper sulfate hydrated salt was not heated long enough
- How would spattering affect the percent of water in the hydrate?

- The hydrated salt is overheated and the anhydrous salt thermally decomposes one product being a gas will the reported percent water in the hydrated salt be reported too high too low or be unaffected explain
- What will happen if you over heat a crucible containing a sample splatters will waters of hydration be too low?

- Suppose in step 8 of part a of the experiment that a student fails to heat the crucible and hydrate sample long enough to drive off all the water
- If the hydrated water molecules are not completely removed from the salt during the heating process will the reported percent mass of water be too high or too low?

- Part a 1 during the cooling of the fired crucible water vapor condensed on the crucible wall before its mass measurement the condensation did not occur following thermal decomposition of the hydrated salt in part b will the reported percent water in the hydrated salt be reported too high or too low explain
- What error occurs when hydrated salt is heated too strongly?

- A hydrated salt solid that includes water molecules within its crystal structure a student heated a 9 10 gram sample of hydrated salt to a constant mass of 5 41 gramd what percent by mass of water did the salt contain
- What can cause the percent h2o in a hydrate to be lower or higer?

- A student performs an experiment to find the percentage of water in a hydrate he determines that the hydrate contains 22 water but the teacher tells him that it actually contains 40 water what error may have caused him to obtain a lower value
- What happens when hydrated salt heats too rapidly?

- During the cooling of the fired crucible water vapor condensed on the crucible wall before its mass measurement the condensation did not occur following thermal decomposition of the hydrated salt in part b will the reported percent water in the hydrated salt be reported too high or too low
- If a sample is heated too rapidly and spattering occurs would the calculated percent of water be too high or too low?

- Part b 1 the hydrated salt is overheated and the anhydrous salt thermally decomposes on product being a gas will the percent water in the hydrated salt be too high too low or unaffected explain
- If you put hydrated salt in a contaminated crucible that was not heated during the heating a some dirt burned along with the water of hydration will the percent of water change?

- Effect on the percentage of water containing in the hydrated salt if heating is not complete
- When a hydrate is spilled does it affect the percent mass of water?

- The hydrated salt is overheated and the anhydrous salt thermally decomposes one product being a gas will the reported percent water in the hydrated salt be reported too high too low or to be unaffected
- What will happen to the mass of a hydrate if left sitting on a lab bench?

- In a hydrate is it more useful to have the mass percent of water in the hydrate or the percentage composition
- When heating hydrates too strongly would the calculated mass percent water be too low or too high?

- Part a 1 during the cooling of the fired crucible water vapor condensed on the crucible wall before its mass measurement the condensation did not occur following thermal decomposition of the hydrated salt in part b will the reported percent wate rin the hydrated salt be reported too high or too low
- What would happen if you heated a hydrated salt too strongly?

- 38 a hydrated salt is a solid that includes water molecules within its crystal structure a student heated a 9 10 gram sample of a hydrated salt to a constant mass of 5 41 grams what percent by mass of water did the salt contain 1 3 69 2 16 8 3 40 5 4 59 5
- Would the student s calculated percent water in the hydrate be high low or unaffected?

- B would the student calculated percent water in the hydrate be high low or unaffected briefly explain
- Will his haste in reporting the present h20 in the hydrated salt?

- Because of a lack of time bill decided to skip this step in the experimental procedure will his haste in reporting the percent h2o in the hydrated salt likely be too high too low or unaffected
- If the crucible is not heated long enough would the percent water in the hydrate be low or high?

- The hydrated salt is overheated and the anhydrous salt is thermally decomposes on product being a gas will the reported percent water in the hydrated salt be reported too high too low or be unaffected explain
- When burning a crucible does oily finger affect the percent of water in hydrated salt?

- 6 part b 1 the hydrated salt is overheated and the anhydrous salt thermally decomposes one product being a gas will the reported percent water in the hydrated salt be reported too high too low or be unaffected explain
- Would a students calculated percent water in the hydrate be high low or unaffected if water vapor cannot be released during heating?

- Part b 2 because of the lack of time bill decided to skip this step in the experimental procedure will his haste in reporting the percent h2o in the hydrated salt likely be too high too low or unaffected explain
- What would happen to moles of water if the water is not driven off the hydrate?

- Explain what would happen to the moles of water calculated if some of the hydrate spilled during heating
- If water is not burned off in step 1 does the mass of the anyhydrous salt increase or decrease?

- A hydrated salt is a solid that includes water molecules within its crystal structure a student heared a 9 10 gram sample of a hydrated salt to a constant mass of 5 41 grams what percent by mass of water did the salt contain
- If you didn t heat your hydrate long enough would your moles of water be too?

- A hydrated salt is a solid that includes water molecules within its crystal structure a student heated a 9
- What happens when not all water is driven from a hydrate?

- A hydrated salt is a solid that includes water molecules within its crystal structure a student
- What happens to the molecular formula when the hydrates are not heated long enough?

- A 10 0 gram sample of a hydrate was heated until all the water
- If heating cycles are stopped before the sample reaches a constant mass will the calculated waters of hydration be too high too low or not affected explain?

- During heating a portion of sample spattered out of crucible the mass percent will be too high or too low