why is it important to use the same balance during the course of an experiment

Why is it important to always use the same balance during the course of an experiment? The different balances could be off and calibrated differently, which could give you inconsistent masses throughout the experiment, which may give you incorrect results in the end.

Full Answer

Why is it important to check the balance of an experiment?

because sometimes there are small errors in the balances. These errors can occur if the balance has not been properly calibrated or it the balance has been abused. Why is it important to always use the same balance during the course of an experiment?

Why is it important to always use the same balance?

Why is it important to always use the same balance during the course of an experiment? The different balances could be off and calibrated differently, which could give you inconsistent masses throughout the experiment, which may give you incorrect results in the end.

How do you determine if two substances are the same substance?

is measuring the melting point of a substance and confirming what substance you think it is by mixing it with a known sample of that substance. If the entire mixture melts at the same itme, then its likeluy that the same substance.

Why do we use the same balance in an experiment?

You should always use the balance to its full precision, and then tidy up the significant figures as your calculations develop. Use the same balance. It is critical to always use the same balance especially if calculations require more than one mass measurement, as each device might be calibrated slightly differently.

Why is a mixture of ice and water rather than ice alone used in calibrating a thermometer?

Why is a mixture of ice and water, rather than ice alone, used in calibrating a thermometer? A mixture ensures that the bulb of the thermometer is fully submerged and and accurate temperature reading can be taken.

What error is introduced into a mass determination of the object being weighed is not at room temperature?

What error is introduced into a mass determination if the object being weighed is not at room temperature? This is a weight error which is caused by warmth/heat causing the air around it to rise, making the mass less. Why should liquids never be never be poured or used in the vicinity of a balance?

Why must all Masses be determined at room temperature?

It is essential that all objects be allowed to reach room temperature before they are weighed. If the temperature of the object differs from that of the balance, convection currents are established in the balance that result in erratic balance readings.

How do you calibrate a thermometer using the ice point method?

Food Thermometer Calibration (Ice-Point method)Fill a large container with crushed ice and water.Put the thermometer stem or probe in the ice and wait 30 seconds.Adjust the thermometer so it reads 32°F.

What is the aim of calibrating a thermometer?

Why is it necessary to calibrate a thermometer? It is necessary to calibrate a thermometer to assure accurate readings, as the accuracy of a thermometer can drift over time. Thermometers can drift over time for various reasons. One reason a thermometer can drift is mechanical shock.

Why is it necessary to use the same weighing scale and weigh at the same room and temperature during weighing?

To be weighed accurately, all objects must be at room temperature. A warm object sets up convection currents inside the balance enclosure, which will make an object appear lighter than it really is.

Why is constant weighing important?

Weighing is of utmost importance in chemical synthesis because it is often the only way to determine the amount of a substance to be used or formed in a chemical reaction. Through Avogadro's constant there is a direct link between the weight and the number of molecules involved in a reaction.

Why is it important to use the Tare function when weighing an object placed in a beaker?

Why is it important to use the tare function when weighing an object placed in a beaker? It allows you to weigh the object and disregard the beaker. reset the scale. When comparing the milligram, gram, microgram, and kilogram, the largest unit of weight is the kilogram.

What is the use of the balance?

A weighing balance is an instrument that is used to determine the weight or mass of an object.

What is a balance used for in a lab?

B. Laboratory Balances A laboratory balance is used to obtain the mass of various objects. There are several varieties of balances, with various limits on their accuracy. Two common kinds of balances are the centigram (0.00) and the analytical (0.0000).

Why is it necessary to tare the balance?

How the tare feature works. Pressing tare resets the balance's display to zero. When you measure a compound, you don't want to include the container's weight in the reading. To tare the container, place it on the balance, wait for a stable reading, then press the tare key to reset the display to zero.

What happens to the melting point of a sample when there is impurity in the sample?

If there is the presence of impurity in a sample, the melting point will decrease since the substance is no longer pure. Adding impurities to samples will cause the melting points to decrease. An example of this would be when salt is added to icy roads. The melting point of the ice then decreases, making the ice go away.

What does it mean when a substance has the same melting point?

Also means that the melting point can be used to determine the identity of the substance. If it is pure, then it will have the exact melting point that its supposed to have. E5Q2.

What does the solubility of salt in water represent?

In the introduction to this experiment it states that "the solubility of a salt in water represents the amount of solute necessary to reach a state of equilibrium between saturated solution and undissolved additional solute" Explain. This is saying that when the solubility of a salt in water is being discussed, ...

What does solubility mean in water?

This is saying that when the solubility of a salt in water is being discussed, that means that they are talking about how much of a substance would be needed to be added to the solvent in order to reach the equalibrium. Equalibrium would be achieved when the solution and solute are balanced. Solubility means the amount of solute needed, ...

Why are there special directions?

There are special directions because of the different air pressures at different altitudes. For example, the air is thinner and has less pressure, so the time it takes for a substance cooking would be lower since there is less pressure, making the temp rise. E4Q6.

Does temperature affect solubility?

The nature of the solvent affects solubility becasue different substances have different characteristics, and would have a different amount of solute that can dissolve depending on what type of solute it is. Temperature doesn't always affect solubility, but if it is soluble in the solvent that it is in, it will. E7Q7.