atoms
number of protons oxygen has
8
is NaCl ionic or covalent
ionic
how much water does 1 mol of MgO2 need to be dissolved to make a 0.67M soln
1.4925373134328L
what does a catalyst do
decreases activation energy
find pOH if pH is 2.6
11.4
coulombic attraction increases when ____ decreases
distance
Name the compound: HBrO2
bromous acid
how much of H2O do u need to add to 20g of MgO2 to make a 20% by mass
80g/80mL
name all 3 factors of collision theory
temperature, concentration, and surface area
what is the constant [H+]*[OH-]
1*10-14
Why does coulombic attraction increase left to right in a period?
The Zeff increases
which molecular geometries can not have all same electron domains and still be nonpolar?
Linear with 5/6, square planar
how much glucose can be combusted if 192 grams of O2 are used
180.156g C6H12O6
reaction second order in A if A doubles, what happens to reaction
fourfold increase
find [H3O+] if pH is 2
0.01M
find average atomic mass of O if its isotopes are O16 (70%) and O18 (30%)
16.6 amu
Name 3 differences between ionic and covalent compounds
ionic high mp, colavent low
ionic metal+nonmetal covalent only nonmetal
ionic crystal lattice, covalent doesn't
30g of O2 and 40g of CH4 are reacted which ones limiting
CH4
K=3, [H2]=4, [F2]=4, [HF]=6 does it shift to right or left
H2+F2->2HF
to the right
label conjugate acid and base pairs
HC2H3O2 + [H2PO4-] <-> H3PO4 + [C2H3O2-]
HC2H3O2 is acid, H2PO4- is base
the 2 isotopes of Sb are 124 and 128 and the average atomic mass is 126.6 find the percent abundance of Sb128
about 65%
draw the lewis structure for all isomers of octane (c8h18)
too lazy to draw them here
about 28.0g
H2+I2->2HI
k=1
[H2]=5, [I2]=5, [HI]=4 find equilibrium concentrations
4.67 for all 3
find pH of 12M H2SO4
around -1.38