A mole is used in what kind of science?
Chemistry
One mole of water and one mole of glucose have the same mass. True or False?
False.
What is the molar mass of AuCl3
303.6 g AuCl3
Is their more than one definition for the word "mole"?
Yes
A mole is a ______
Unit
One mole of hydrogen contains the same number of molecules as one mole of carbon dioxide. True or False?
True.
Why is the boiling point of PH3 lower than that of NH3?
3. NH3 is hydrogen bonded, while PH3 is not hydrogen bonded.
Which is the correct description of polarity in F2 and HF molecules?
3. Only one of the molecules is polar
What's the unit abbreviation for a mole?
mol
What is the molar mass of Carbon monoxide (CO)?
~28.01 grams
How many atoms are in 3.5 moles of arsenic atoms?
2.1x1024 atoms As
When a chlorine atom becomes a chloride ion
it gains one electron.
The mole is the SI Unit for the _________ of a chemical substance.
The amount of a chemical substance
How many atoms are in a mole?
6.02 E23 atoms/molecules/particles
How many moles of sodium oxide, Na2O are in 310 grams of the compound
5 moles Na2O
A covalent bond would be expected to form between atoms which have the electron configurations
3. 2,8,1 and 2,8,7
Who is the mole named after?
Avagadro
How many grams are in a mole?
the mass # from the periodic table
Which compound contains both ionic and covalent bonds?
H2CO2
NH4Cl
HCl
NH4Cl
What are valence electrons?
1. Electrons in the highest main energy level