0
What else can I help you with?
Why is heating a home with natural gas usually the cheapest option compared to heating with electricity?
There are many reason why natural gas is usually a cheaper option for heating when compared to heating with electricity. The biggest reason is heating with therms is cheaper than kilowatts.
What is the reason for heating the tubes before and after each transfer?
You are not so much as heating tubes but preventing unwanted microbes from "sneaking" into the culture. You are sterilizing the mouth of the tube before and after.
What is the reason of using beads in the distillation flask when distilling water?
If you put boiling beads in a solution, then it is easier to observe whether the solution begins to boil because the beads will vibrate. During the distillation process it is difficult to distinguish which solution is boiling so that's why they use boiling beads (quite honestly, it doesn't matter to me because I still don't see the difference!)
What is the main reason water from the ocean turns to vapor and then evaporates into the air?
Two physical changes occur: evaporation by heating and condenstion by cooling.
What reason does not make a case for the value of proposed solution?
A reason that does not make a case for the value of a proposed solution is the absence of empirical evidence or data supporting its effectiveness. Simply asserting that the solution would be beneficial, without concrete examples or case studies demonstrating its success, fails to establish credibility. Additionally, relying solely on anecdotal experiences rather than systematic analysis can undermine the argument for its value. Lastly, ignoring potential drawbacks or limitations of the solution can lead to an overly optimistic and unconvincing case.
Why is important that the indicator is present in the solution during the course of titration?
the reason why a indicator is important in some titration is to show a change in the solution. for example as a solution runs from acidic to basic the indicator may turn a different color. but this is the reason why it is important inmost experiments.
The data collected from the laboratory titration are used to calculate the?
Concentration of Solution Reason: The equation for titration on Refernece Table T shows molaity, which is an expression of concentration. molarity(m)= moles of solute/liters of solution
Why is heating a home with natural gas usually the cheapest option compared to heating with electricity?
There are many reason why natural gas is usually a cheaper option for heating when compared to heating with electricity. The biggest reason is heating with therms is cheaper than kilowatts.
What is the reason of insulation failure in ac motor?
excessive heating.
Why should you stop heating the solution before the liquid has completely evaporated?
The reason one should stop heating the solution before the liquid has completely evaporated is because heat will continue to carry over even after it is removed from the flame. This means that the liquid will continue to evaporate for a little longer.
Can a prior drug felon do a heating service call?
yes he can there is no reason why they cant
Can uneven heating of air in earth's atmosphere cause convection to occur?
yes
What is the reason for heating the tubes before and after each transfer?
You are not so much as heating tubes but preventing unwanted microbes from "sneaking" into the culture. You are sterilizing the mouth of the tube before and after.
Can one have underfloor heating in their home?
Yes, there are currently people who do have underfloor heating in their homes. Many people don't want to worry about walking on the cold bathroom and kitchen tile in the winter months and pay extra for underfloor heating for this reason.
Why can you not titrate the tablet directly?
A tablet cannot be titrated directly because antacid tablets are buffered. They must first be reacted with excess strong acid. Then strong base is used just until the excess acid is neutralized. The moles of acid neutralized by the antacid is found by subtracting the moles of strong base used from the total volume of strong acid used.
Why wait 10-15 seconds after dispensing a volume of titrant before a reading is made?
It takes a little time for all the molecules in the solution to reach equlibrium. For this reason there is a default time period you should wait to take your reading. You can shorten the time a little if your solution is being stirred but just keep it consistent for each reading. Your teacher or lab proctor probably just like 10-15 seconds.
Why is dilute sulphuric acid is added while preparing standard mohr salt solution?
For preparation of standard solution of Mohr salt {FeSO4.(NH4)2SO4.6H2O}, it's necessary to add dilute H2SO4 to prevent the Fe2+ ions of Mohr salt solution from undergoing oxidation (to Fe3+). Just try to prepare the standard solution without adding this acid. You'll observe that your "Mohr solution" will become yellow in colour, i.e., it won't remain "Mohr salt solution" anymore, hence can't be used in titration. And while doing the titration of the Mohr salt solution with KMnO4 (or even with K2Cr2O7), you need to add dilute H2SO4. The reason is well explained by the chemical equation involved: reduction: (MnO4)- + 8H+ + 5e ----> Mn2+ + 4H2O oxidation: Fe2+ ----> Fe3+ + e net equation: (MnO4)- + 8H+ + 5Fe2+ ----> Mn2+ + 4H2O + 5Fe3+ There is involvement of H+ ions in this reaction. This redox titration requires acidic medium. Moreover, KMnO4 acts as a very good oxidizing agent in the presence of acidic medium, than in the basic and neutral medium. NOTE: Now a query may arise that for providing acidic medium, can HCl or HNO3 be used? (Let me tell you it's one of the favourite questions of external examiners) The answer is NO, because HNO3 is a very strong oxidizing agent. So, the Fe2+ present will be oxidized both by KMnO4 and HNO3, which will result in an error in determination of volume of KMnO4 reacting with Mohr salt solution. Also, HCl can't be used because Cl- from HCl will be oxidized by KMnO4: HCl (aq) ---> H+ (aq) +Cl- (aq) oxidation by KMnO4=> 2Cl- ----> Cl2 + 2e So, some extra KMnO4 will be used up because it will oxidize both- Cl- as well as Fe2+, => error in titration.
