Vocab
the mass of a mole of any substance
what is molar mass?
the molar mass of elements in the halide group in the gaseous state of matter is always AMU times this
at STP 1 mole of gas occupies a volume of _____
what is 22.4 L?
there are this many mole of SO3 in 2.4 x1024 molecules
what is 4.0?
Of the following which is not an empirical formula?
a. Na2SO4
b. C6H5Cl
c. N2H4
what is C?
0 degrees C and 1atm of pressure
what is STP?
the mass of .200mol of aspirin (C9H8O4)
what is 36.0 g?
the number of moles in 625L of H2 gas at STP
what is 27.9 mol?
this many molecules are in 4.50 moles of H2O
what is 2.71 x 1024 molecules?
the % by mass of carbon in acetone, C3H6O
what is 62%?
formula with lowest-whole number ratio or elements
what is empirical formula?
the molar mass of molecular oxygen
what is 32.0 g?
Liters of CO in 2.5 mol of CO at STP
what is 56.0 ?
there are this many hydrogen atoms in 4 molecules of C3H8O
what is 32?
the molecular formula for a compound that has an empirical formula of C2H3O and a molar mass of 172g
What is C8H12O4?
the smallest unit into which a substance can be broken down without a change in composition usually atoms, molecules, or ions
what is a representative particle?
this mass of gold contains as many atoms as 3.05g of silver
what is 5.56g?
the density of a gaseous compound is 1.623g/L at STP. determine the molar mass.
what is 36.36g?
this many oxygen atoms are in 10 formula units of Al2(SO4)3
what is 120 atoms
the polymer used for the nonstick surface of cooking utensils is 24% C and 76% F by mass. find the empirical formula
what is CF2?
this person's hypothesis states: equal volumes of gases at the same temperature and pressure contain equal numbers of particles
Who is Avogadro
the mass of 5.00 x 1023 molecules of F2
what is 31.6g?
92.4g of Chlorine gas has this much volume at STP
what is 29.2 L?
this many atoms are contained in 12.5g of NaCl
what is 2.78 x 1023 atoms?
the molecular formula of a compound whose empirical formula is CH2F and has a molar mass of 66.0g
what is C2H4F2?