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How do you determine the uncertainty in an analytical balance reading?
Wiki User
∙ 10y ago
measure the weight of a substance repeatedly and keep the conditions constant
Wiki User
∙ 10y ago
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What are the natural random uncertainties in reading your thermometer and balance?
The uncertainty of a measuring instrument is estimated as plus or minus (±) half the smallest scale division. For a thermometer with a mark at every 1.0°C, the uncertainty is ± 0.5°C. This means that if a student reads a value from this thermometer as 24.0°C, they could give the result as 24.0°C ± 0.5°C
How does a spring balance work?
to measure the weight of an object, hang the object on the hook of the balance, lift up the balance and take the reading. OR to measure the force needed to pull an object, attach an object to the hook of the balance, pull the balance and take the reading when the object moves.
What would be the magnitude and direction of acceleration which would make the balance reading zero?
In physics, if the balance reading is zero then the magnitude and direction of acceleration would also be zero. There can be no movement or force if everything is balanced.
What is the zero error and the reading uncertainty (error) for a meter rule?
The zero error depends on the user, and the wear on the metre rule. Given that smaller rulers have about 2mm of material before the zero mark, wear is unlikely to exceed that without being noticed. The reading error is +/- 1 mm.
When a spring balance holding a mass is allowed to fall freely what reading will it show?
It will have a 'finger' pointer against a scale to indicate mass.
What is Relative standard uncertainty in burette?
The smallest possible burette reading is 0.10 and the uncertainty of a burette's reading is half of its smallest value (0.05).
What should you do when writing an analytical essay?
its ====>Interpret the reading
What are the natural random uncertainties in reading your thermometer and balance?
The uncertainty of a measuring instrument is estimated as plus or minus (±) half the smallest scale division. For a thermometer with a mark at every 1.0°C, the uncertainty is ± 0.5°C. This means that if a student reads a value from this thermometer as 24.0°C, they could give the result as 24.0°C ± 0.5°C
What is the meaning of analytical reading?
Is most needed in activities that requires a lot of inquisitive thinking like reading mathemathical theories and scientific formula
What is the reading on balance and that of partner?
18
What are the strengths of a lawyer?
Analytical thinking, good at researching, good at reading and englishability to research and be persuasive
What is refinement in developmental reading?
Refinement in developmental reading refers to point where the reader has developed their reading skills to a point where they can make analytical judgements. The refinement process helps to define reader interest.
What is the reading on your balance and that of your partner?
[object Object]
How does a spring balance work?
to measure the weight of an object, hang the object on the hook of the balance, lift up the balance and take the reading. OR to measure the force needed to pull an object, attach an object to the hook of the balance, pull the balance and take the reading when the object moves.
Why must you keep the door of analytical balance close when recording the mass of the sample?
Analytical balances are EXTREMELY sensitive... so sensitive that the movement of surrounding air molecules will cause the reading to continuously fluctuate as they bounce off your sample and the scale itself. The accuracy of these balances is so good that even the tiny force caused by these collisions are detected, and reported in the measurement. Keeping the door closed prevents the balance from being bombarded by air molecules (no air flow) and ensuring an accurate measurement.
What are analytical questions?
Analytical questions are questions used to help analyze and get a closer look into something. They usually begin with the word "How" or "Why".
What is the definition for triple balance beam?
The triple beam balance is a tool used to distinguish the weight of an objectÕs mass through grams. Triple beam balance is commonly used in school and laboratories.
