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There can be many sources of error for analytical balances. Some of these include:
1. Air Currents / Drafts
2. Adsorptive layer of moisture on the sample
3. Electrostatic forces
4. Magnetic forces
5. Air buoyancy
6. Improper calibration
7. Temperature changes
8. Not level
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What causes rainfall fluctuations?
There are several things that cause rainfall fluctuations. Two things that will cause rainfall to vary is the location and temperature.
What is the primary purpose of substantive analytical procedures?
the primary purpose of substantive analytical procedures is to provide evidence as to the validity of an account balance.
What are measuring apparatus in analytical chemistry?
Examples: analytical balance, spectrophotometer, titrimeter, coulometer, emission spectrometer etc.
Can you give 3 pieces of equipment used in laboratory measuring?
A measuring cylinder, a balance and a burette.
What can Cause weight fluctuations during the day?
food weight, water weight
How does a country balance of payments affect the value of its currency?
can cause fluctuations in the exchange rate between its currency and foreign currencies.
Uses of analytic balance?
An analytical balance is used to measure mass to a very high degree of precision and accuracy. The weighing pan(s) of a high precision (.01 mg or better) analytical balance are inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance's operation. The use of a vented balance safety enclosure, which has uniquely designed acrylic airfoils, allows a smooth turbulence-free airflow that prevents balance fluctuation and the weighing of mass down to 1 μg without fluctuations or loss of product. Also, the sample must be at room temperature to prevent natural convection from forming air currents inside the enclosure, affecting the weighing. Analytical precision is achieved by maintaining a constant load on the balance beam, by subtracting mass on the same side of the beam to which the sample is added. The final balance is achieved by using a small spring force rather than subtracting fixed weights.
Who can you donate an analytical balance to It is probably 60 years old?
Any high school would be happy to have a true analytical balance! They are so expensive!
How do fluctuations to the international exchange rate of a nation's currency affect its balance of trade?
Helps the balance.
How do you weigh .0001g or less?
Use an analytical balance
What are weighing scales used for in the lab?
analytical balance
What is the lightest weight which can be weighed in an analytical balance?
This depends on the balance model; for a typical balance this value is 0,1 mg.
What causes rainfall fluctuations?
There are several things that cause rainfall fluctuations. Two things that will cause rainfall to vary is the location and temperature.
Which balances is affected by the local force of gravity is it beam or analytical or spring balance?
spring balance
Can you find the mass of a crystal?
Ye, using an analytical balance.
What is the primary purpose of substantive analytical procedures?
the primary purpose of substantive analytical procedures is to provide evidence as to the validity of an account balance.
Why is the iron weighed accurately on an analytical balance while the copper sulfate is weighed on a top-pan balance?
Because
