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What would happen to the solubility of potassium chloride in water as the water temperature increased from 25 and degC to 100 and degC?
The solubility increase from 38,7 g KCl/100g water to 40,7 g KCl/100 g water.
The normal boiling point of chloroform which has a higher vapor pressure than water at 100 and degC is?
The boiling point of chloroform is 61,15 oC.
) The temperature of a sample of water changes from 10 and degC to 20 and degC when the water absorbs 100 calories of heat. What is the mass of the sample?
one calorie of heat is able to raise one gram of water one degree Celsius so 400 calories could raise 1g of water 400 degrees, so it would raise the 80g by(400/80) 5 degrees Celsius plus the initial temp of 10 degrees, the 80g of water would have a final temp of 15 degrees Celsius
How many calories are needed to heat 225 g of water from 50.5 degrees C to steam at 133 degrees C?
1 cal/gdegC x 225g x (100 - 50.5)degC heat to the boiling point 540 cal/g x 225g heat to vaporize the water 0.5 cal/gdegC x 225 g x (133-100)degC heat to chang temp of steam = 11137.5 cal + 121500 cal + 3712.5 cal = 14850 cal
A beaker containing 80 grams of KNO3 in 100 grams of water have a temperature of 30 and Acirc and degC. Approximately how many grams of the salt are undissolved on the bottom of the beaker?
The mass of undissolved potassium nitrate is cca. 3 g.
What would happen to the solubility of potassium chloride in water as the water temperature increased from 25 and degC to 100 and degC?
The solubility increase from 38,7 g KCl/100g water to 40,7 g KCl/100 g water.
What would happen to a sample of water at 30 and degC if it is heated until the temperature reaches 120 and degC?
Water is transformed in vapors.
The normal boiling point of chloroform which has a higher vapor pressure than water at 100 and degC is?
The boiling point of chloroform is 61,15 oC.
) The temperature of a sample of water changes from 10 and degC to 20 and degC when the water absorbs 100 calories of heat. What is the mass of the sample?
one calorie of heat is able to raise one gram of water one degree Celsius so 400 calories could raise 1g of water 400 degrees, so it would raise the 80g by(400/80) 5 degrees Celsius plus the initial temp of 10 degrees, the 80g of water would have a final temp of 15 degrees Celsius
Four containers A B C and D contain tar. The tar in each of the containers A B C and D have temperatures of 100 and degC 200 and degC 50 and degC and 25 and degC respectively. Which statement is true?
The statement that is true is that tar in container A (100 °C) and container B (200 °C) is at a higher temperature than the tar in containers C (50 °C) and D (25 °C). Therefore, the tar in containers A and B is likely to be less viscous and flow more easily compared to the thicker, cooler tar in containers C and D.
How many calories are needed to heat 225 g of water from 50.5 degrees C to steam at 133 degrees C?
1 cal/gdegC x 225g x (100 - 50.5)degC heat to the boiling point 540 cal/g x 225g heat to vaporize the water 0.5 cal/gdegC x 225 g x (133-100)degC heat to chang temp of steam = 11137.5 cal + 121500 cal + 3712.5 cal = 14850 cal
How many joules of energy are necessary to heat a sample of water with a mass of 46.0 grams from 0.0 celsius to 100.0?
419.1 Joules are required to heat one gram of liquid water from 0.01 degC to 100 deg C. So the answer is 419.1*46 = 19278.6
A beaker containing 80 grams of KNO3 in 100 grams of water have a temperature of 30 and Acirc and degC. Approximately how many grams of the salt are undissolved on the bottom of the beaker?
The mass of undissolved potassium nitrate is cca. 3 g.
Is ice cooler then water?
Yes, assuming we are talking about pure water and pure ice. Ice is the solid state of water and occurs at 32 degF or 0 degC.
If the temperature changes by 100 K by how much does it change in and degC?
A temperature change of 100 K is equivalent to a change of 100 degrees Celsius. This is because the size of a degree Celsius and a Kelvin is the same, but the zero point is different (0 K is absolute zero while 0°C is the freezing point of water).
Does the temperature of water alter the freezing time?
Yes. It takes more time for hot water to freeze - the cooling process takes longer when you start from a higher temperature. Different liquids freeze at different temperatures. It depends how cold the place where you're putting the boiling water is, how much boiling water there is, etc. I think that each liquid has a specific temperature at which it freezes - it may not be associated with thickness.
If you add 35 g of copper (II) sulfate CuSO4 to 100 g of water at 60 and degC according to the transparency how many grams of copper(II) sulfate will not dissolve HTML Editor Keyboard Shortcuts?
At 60°C, about 31.6 g of copper (II) sulfate will dissolve in 100 g of water. This means that about 3.4 g of copper (II) sulfate will not dissolve and will form a saturated solution.
