8 companies i looked it up on google and thats what it said hope its helpful
Answer:
58g
Explanation:
In order to solve this problem, you must take a look at the solubility graph for potassium nitrate.
Now, the solubility graph shows you how much solute can be dissolved per 100g of water in order to make an unsaturated, a saturated, or a supersaturated solution.
You're looking to make a saturated potassium nitrate solution using
50g of water at 60∘C. Your starting point will be to determine how much potassium nitrate can be dissolved in 100g of water at that temperature in order to have a saturated solution.
As you can see, the curve itself represents saturation.
If you draw a vertical line that corresponds to 60∘C and extend it until it intersects the curve, then draw a horizontal line that connects to the vertical axis, you will find that potassium has a solubility of about
115g per 100g of water. Your answer is 58g of potassium nitrate
The constant variable is the math problems, the dependent variable is the calculators, and the independent variables are the students
Answer:
The heat of vaporization of the gold sample is 1577.397 joules per gram.
Explanation:
The latent heat of vaporization of gold (), in kilojoules per gram, is the heat required by a unit mass of gold to transform the material from liquid to gas:
(1)
Where:
- Energy required for vaporization, in joules.
- Mass, in grams.
If we know that and , then the heat of vaporization of the gold sample is:
The heat of vaporization of the gold sample is 1577.397 joules per gram.
Chemical properties can only be tested if you change the substance