13 mL
7
The mass of undissolved potassium nitrate is cca. 3 g.
stones :)
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.
An insoluble salt added to water remain as a residue at the bottom of the beaker.
Fill a beaker with water, and weigh it. Weigh a sample of the mineral. That's the mass of the mineral. Put the sample in the beaker and weigh that. The weight of the water-filled beaker plus the weight of the mineral sample will be greater than the weight of the beaker with mineral sample and water. The difference is the weight of the displaced water, in grams. The volume of the mineral sample, in cubic centimeters is equal to the weight of the displaced water, in grams. Calculate the specific gravity of the mineral by dividing the weight of the mineral sample by the volume of the mineral sample. Example: your beaker weighs 40 grams. Filled with water, it's 1040 grams. The sample of mineral weighs 160 grams. The beaker with the sample of mineral and water weighs 1179.7 grams. The mineral, and the beaker with water would have a combined weight of 1200 grams, but the beaker with mineral and water weighs 20.3 grams less than that, so the mineral sample is displacing 20.3 cubic centimeters of water. Given a mass of 160 grams and a volume of 2.03 CC, the specific gravity would be found by dividing 160 by 20.3. It's 7.85. (Which happens to be the specific gravity of some iron.)
it would be the same
32 g
7
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.
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.
The mass of undissolved potassium nitrate is cca. 3 g.
800 milliliters or 0.8 liters
stones :)
stones :)
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.