May 2024
what is acidic, basic, and neutral pH levels
acidic <7 basic >7 neutral =7
what does BLA pair with
Conjugate Base
Can you get from massfield to atomville directly
No you must go through moletown
Do opposite charges attract or repel?
attract
What are reactants and products?
Reactants are the substance being changed, products are the new substance formed
what does ocean acidification do to CaCO3 shells
it makes them harder to make, and it may dissolve them if pH is too low
If Keq is less than 1, which side of the equation does it favor
reactants
Calculate the mole ratio for 2H2 (g) + O2(g) --> 2H2O (g)
2 mol H2, 1 mol O2, 2 mol H2O
Solubility is how effectively a (solute/solvent) dissolves in a (solute/solvent)
solute, solvent
What do gases do with any container they occupy?
they fill it
Why is the term ocean acidification inaccurate
because the ocean doesn't actually turn into an acid
What is on the molarity triangle and where is it?
mol= top, M=bottom left, L=bottom right
There is 6.98 g F2. What is the molar mass of F2 and BF3? BCE= 2B (s) + 3F2 (g) --> 2BF3(s)
MM(F2)=38.00 g/mol
MM(BF3)=67.81 g/mol
Which type of reaction is this
N2+3H2=2NH3
synthesis
When are trailing 0s considered sig figs
when there is a decimal point
when the concentration of a substance increases, which direction is the shift
away from substance
In the problem H2PO4 (aq) +H3SO3 (aq) --> H3PO4 (aq) +H2SO4 (aq), identify the BLA, BLB, CA, CB
BLA= H3SO3, BLB= H2PO4, CA= H3PO4, CB= H2SO3
Define limiting and excess reactants
Limiting reactant restricts the amount of products, excess reactant doesn't.
Add coefficients to solve Unbalanced chemical equation
___W(C2H3O2)2(aq)+___AgHCO3(s)--> ___AgC2H3O2 (aq)+___W(HCO3)2(s)
1,2,2,1
what is Boyle's law
volume of a gas at a constant temperature is inversely proportional to its pressure
In La Chateliers principle, the Keq is only affected by what
temperature
How much M is 1.25 g NaOH in 750 mL
0.0417 M NaOH
Determine the Limiting and Excess reactants.
BCE= 2NH3(g) + 3CuO(s)--> N2(g) +3Cu(s) +3H2O(g)
MM(NH3)= 17.03 g/mol, MM(CuO)= 79.55 g/mol
LR= CuO, ER= NH3
Find the Balanced chemical equation of this Double displacement reaction
Na2S(aq) + Cu(NO3)2(aq)--> ?
BCE: Na2S(aq) + Cu(NO3)2(aq)--> 2NaNO3(aq) + CuS (s)
what is the ideal gas law equation and what does each variable stand for
PV=nRT, P=pressure, V=volume, n=#mol, R=ideal gas constant, T=temperature in kelvin