Whatís the Word?
What is a solute?
A solute is a substance that can be dissolved in a solvent to form a solution.
What is the mass of 1 mole of H2O?
H2O = (1 x 2) + (16 x 1) = 18 g
Who is Avogadro?
This man discovered the number of molecules in 1 mole is 6.02 x 1023.
What is 1 Molarity?
Having 1 mole solute/1 liter of solvent.
Is water toxic?
Water is generally not toxic to humans when consumed in normal amounts. In fact, water is essential for life, and adequate hydration is crucial for maintaining good health.
What is a solvent?
This substance is present in the greatest quantity in a solution. It is usually water, but almost always a liquid.
What is the mass of 1 mole of C6H12O6?
C6H12O6 = (12 x 6) + (1 x 12) + (16 x 6) = 180 g
What is 6.02 x 1023?
1 mole of H2O is equal to this many molecules.
What is 0.1 Molarity?
A 0.1 M (molar) solution means that there is 0.1 moles of solute in 1 liter of solution.
What is lethal dose (LD50)?
This is the amount of an ingested substance that kills 50% of a test sample.
What is soluble?
"Soluble" refers to the ability of a substance to dissolve in another substance, usually in a liquid, most commonly water.
Which is heavier: 1 mole of NaCl or 1 mole of KCl?
NaCl = 23 + 35 = 58 g
KCl = 39 + 35 = 74 g
What is 3.01 x 1023?
0.5 mole of H2O is equal to this many molecules.
If a person weighs 125 pounds, this is that personís weight in kg. *1 kg = 2.2 lbs
125/2.2 = 56.8 kg
What is molar mass?
Molar mass is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance in moles. It is expressed in units of grams per mole (g/mol)
How many grams would 2 moles of LiCl weight?
LiCl = (7 + 35) x 2 = 84 g
How many molecules are in 32 g of O2?
6.02 x 1023.
What is more toxic: 1 mole of mercury or 100g of mercury?
What is 1 mole? 1 mole = 200 g **Comparing LD50 of different chemicals, the lowest is the most toxic. If itís the same chemical, the more you have, the more toxic it is.
What is Molarity?
This chemical unit is the amount of moles of solute per liter of solvent.
Would 1 mole of CaCl2 or 2 moles of HF weight more?
CaCl2 = 40 + (35 x 2) = 110 g
HF = (1 + 19) x 2 = 40 g
If there are 1.204 x 1024 molecules of NO, how much does NO weight?
60gr.