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Why beaker used to collect solution should be dry?
Beakers that will be used to collect solutions should be completely dry before use due the possibility of water being able to dilute the solution that will be placed inside of the beaker. If a beaker is not completely dry before collection of a solution, an inacurracy in data results may occur.
Should we measure the mass of a beaker before measuring a chemical or powder inside the beaker?
You can do that or you can zero balance the scale with the empty beaker on it before adding the substance to be measured to the beaker.
How do you calculate non volatile matter percentage in a solution?
Non volatile matter = [(W2-W1)/V] x 100 where W2 :Weight of beaker [Before sample addition & evoporation] W1 :Weight of beaker [after sample evoporation] V : Volume of sample taken
Why do beaker need to cool before weighing?
A hot beaker warms the air around it, which causes it to rise. For very sensitive balances, the updraft produced can reduce the measured weight.
How do you prepare a Normal Saline Solution being use in 100ml of distilled water?
To prepare a Normal Saline Solution in 100ml of distilled water, you would add 0.9g of sodium chloride (NaCl) to the water. This concentration of 0.9% NaCl is considered isotonic and mimics the salt concentration of our body fluids. Stir the solution until the salt is completely dissolved before use.
Why is it important to let the sand settle first at the bottom of the beaker before pouring the solution into another beaker?
Letting the sand settle at the bottom of the beaker helps separate it from the solution, reducing the risk of contaminating the solution with sand particles. This step allows for cleaner and more accurate transfer of the solution into another beaker for further processing or analysis.
Why beaker used to collect solution should be dry?
Beakers that will be used to collect solutions should be completely dry before use due the possibility of water being able to dilute the solution that will be placed inside of the beaker. If a beaker is not completely dry before collection of a solution, an inacurracy in data results may occur.
Where should a thermometer be placed in a beaker?
Hold it by the top or use a clamp. But make sure before you take the temperature you stir the liquid around in the beaker first and that you do not let it touch the bottom of the beaker as the glass will be hotter than your liquid.
Should we measure the mass of a beaker before measuring a chemical or powder inside the beaker?
You can do that or you can zero balance the scale with the empty beaker on it before adding the substance to be measured to the beaker.
How would it affect your results if you used a beaker with residual water in it to measure out your standardized sodium Huydroxide NaOH solution?
Depends on how accurate your results need to be. If you're not using grade A or B glassware and its just a standard beaker then the effect of the residual water will be negligible compared to the calibration error of the beaker.
How do you calculate non volatile matter percentage in a solution?
Non volatile matter = [(W2-W1)/V] x 100 where W2 :Weight of beaker [Before sample addition & evoporation] W1 :Weight of beaker [after sample evoporation] V : Volume of sample taken
Why is it important for the solution to be clear before you attempt to measure its optical activity?
'cause, yo
Did Dani Harmer have any experience before Tracy Beaker?
no
Why is it recommended to pour some of the solution from the sample bottle into a separate beaker before measurements are taken?
Most likely to avoid contamination, though it's hard for us to do your homework for you when you don't give complete information.
What do with your contacts you if you have no contact solution?
Put them in clean water, but be sure to soak them in solution before putting them in your eyes again. This is important because the solution kills germs but water does not. It is very important to have contact solution always. If you run out and too broke to buy another bottle, then go to your optometrist. He/she will be glad to give you a trial bottle.
How should the pH of a material in the Acidic beaker compare to that in the Basic beaker before any acid or base is added?
The material in the acidic beaker should have a lower pH compared to the material in the basic beaker before any acid or base is added. This is because the acidic beaker contains an excess of hydrogen ions, resulting in a lower pH, while the basic beaker contains an excess of hydroxide ions, leading to a higher pH.
Why was it important to let the solution cool down before conducting the titration experiment?
It was important to let the solution cool down before conducting the titration experiment because temperature can affect the accuracy of the results. Cooling the solution helps to ensure that the reaction occurs at a consistent temperature, leading to more reliable and precise measurements during the titration process.
