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Why is it necessary to weigh an anhydrous substance with a cover on?
Wiki User
∙ 10y ago
It is important to weigh an anhydrous substance with a cover on because the solid may be lost to the air during the measuring of the weight.
Wiki User
∙ 10y ago
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Why is enthalpy of solution of 4g of anhydrous copper sulphate lower than the expected value?
Firstly, what do you mean by "lower"? Do you mean less exothermic? If that is what you mean, then one possible reason is that your anhydrous copper sulphate was not truly anhydrous, and that is highly likely. Did it look a bit blue? If so then it had absorbed some water from the air and therefore you did not weigh out as many moles of it as you had thought - hence less heat was released in your experiment.
Steps for the preparation of a standard solution?
1. Weigh the necessary substance 2. Put this substance in a bottle or Berzelius, Erlenmeyer flask. 3. Add slowly the adequate volume of solvent and stir. 4. Apply a label (date, name of the operator, name of the solution, concentration, etc.).
What do you use to measure how much stuff is in a specified volume of a substance scientist use?
You weigh it.
What procedures would you follow if you wanted to calculate the density of an unknown substance?
Weigh it & measure its volume.
How do you determine the density of a granular substance which is insoluble in water?
Using Archimedes principle we can find the density of such object. First let's weigh the body hanging in air using a physical balance. Let it be w1 Now immerse it in water kept in a beaker and weigh once again. Let it be w2. Now using the expression density can be found. Density = w1/ (w1 - w2)
Why do you have to weigh the empty container first before placing the substance to be weigh?
bbhu
Why is enthalpy of solution of 4g of anhydrous copper sulphate lower than the expected value?
Firstly, what do you mean by "lower"? Do you mean less exothermic? If that is what you mean, then one possible reason is that your anhydrous copper sulphate was not truly anhydrous, and that is highly likely. Did it look a bit blue? If so then it had absorbed some water from the air and therefore you did not weigh out as many moles of it as you had thought - hence less heat was released in your experiment.
How much does the volume of the substance weigh?
Volume does not weigh. The two are different characteristics of objects and there is no relationship between them.
How much does halfcup weigh?
That depends on the substance being measured. Lead will weigh more than feathers.
How much does anhydrous ammonia weigh per gallon?
Ammonia weights 5.15 pounds per gallon in contrast to water which weights 8.33 pounds per gallon.
How many mg per millilitre?
Depends on the substance. A given volume of one substance can weigh more or less than the same volume of another substance.
How much does 800cc weigh?
800cc of what? It all depends on the substance in which is is 800cc.
How much does 18.9 fluid oz weigh in grams?
It depends on the substance
What does 70 percent Isopropyl Alcohol Weigh?
The weight will depend on how much of the substance there is.
How do you measure how much stuff is in a specified volume of a substance scientists use what?
You weigh it.
Why do you have to weigh the empty container first before placing the substance to be weighed?
bbhu
How much does a qt weigh?
It's a measurement of volume so that depends on the substance.
