13 mL
stones :)
Well, darling, a 250 mL beaker filled with 100 mL of water would have a mass of approximately 100 grams. Water has a density of 1 g/mL, so 100 mL would weigh 100 grams. The beaker itself doesn't add any weight, unless you're counting the weight of your expectations.
The mass of undissolved potassium nitrate is cca. 3 g.
250 grams because water density is the same for ML to GRAMS. No if it was filled with water to 250 ml the water would weigh 250 grams. The beaker would weigh whatever, depending on the thickness of the glass.
The student can retrieve the salt by evaporating the water. They can do this by heating the solution in the beaker until all the water evaporates, leaving behind the salt. The salt can then be scraped or collected from the bottom of the beaker.
it would be the same
It depends what beaker your talking about.
stones :)
32 g
Well, darling, a 250 mL beaker filled with 100 mL of water would have a mass of approximately 100 grams. Water has a density of 1 g/mL, so 100 mL would weigh 100 grams. The beaker itself doesn't add any weight, unless you're counting the weight of your expectations.
Somehow your data doesn't add up. The mass difference would be 195 - 125 = 70 grams. 1 ml of water weighs roughly 1 gram, so you would expect 70 ml of water to be filled into the beaker. Your water is either contaminated, extremely heavy or its a trick question.
When you pored it into the beaker it would be there. It has to be added by some process. Using the faucet or another container with water in it would be the simplest manner.
The mass of undissolved potassium nitrate is cca. 3 g.
To find the specific gravity of a mineral, you would compare its weight to the weight of an equal volume of water. Divide the mineral's weight by the weight of the water, and you'll get the specific gravity of the mineral. This measurement can help identify the mineral and understand its composition.
To raise the water level in the beaker, you should add more water to it. The amount of water added should be equal to the volume you want the water level to increase by.
a beaker have 100 ml of water and 5 grams of salt
250 grams because water density is the same for ML to GRAMS. No if it was filled with water to 250 ml the water would weigh 250 grams. The beaker would weigh whatever, depending on the thickness of the glass.