Le Chatelier’s Principle, pH, & Ocean Acidification
Is the pH for vinegar 2-14 yes or no
yes
What is one property of an acid, like how it tastes or its pH range?
It tastes sour
What is the mole ratio between H2 and H2O in this balanced equation?
2:2 (or 1:1)
What is the molar mass of CO2? (C = 12g, O = 16g)
44 g/mol
Which type of force holds different molecules together: intramolecular or intermolecular?
Intermolecular forces
What happens to ocean pH when it absorbs too much CO2
The pH decreases
What is one property of a base, like how it feels or its pH range?
It feels slippery
What is the molarity of a solution if you dissolve 2 moles of solute in 4 liters of water?
0.5 M (2 moles / 4L)
What type of reaction is A + B -> AB?
Synthesis
What are the three elements that hydrogen must bond with to create a hydrogen bond?
Nitrogen, Oxygen, or Fluorine (N, O, F)
Equation: N2(g) + 3H2(g) <> 2NH3(g) + heat Question: If you add more N2 to this reaction, which way does the equilibrium shift?
To the right
What is equal when a chemical reaction reaches equilibrium?
The forward and reverse reaction rates.
How many moles are in 36 grams of H2O? (Molar mass of H2O = 18 g/mol)
2 moles
What type of reaction is CH4 + 2O2 -> CO2 + 2H2O?
Combustion
What is the chemical name for NaCl?
Sodium chloride
If you increase the pressure on this reaction, which way does it shift?
To the right
in the reaction HCl + H2O > H30^+ +Cl^- , what is the conjugate base?
Cl-
What is the mass of 6.02 x 10^23 molecules of H2O?
18 grams
Balance this equation: __H2 + __O2 -> __H2O
2, 1, 2
What is the chemical formula for Carbon Dioxide?
CO2
If you increase the temperature of this reaction, which way does it shift?
To the left
if a solution has an [H^+] of 1.0 X 10^-4 M. what is the [OH^-], and is it acidic or basic
[OH^-]+ 1.0 X 10^-10 M; it is acidic
how do to calculate mole ratios
using the coefficients from a balanced chemical equation, expressed as the fraction:
Does the reaction Zn + CuSO4 -> happen? If yes, what are the products?
Yes, it makes ZnSO4 + Cu (Zinc is higher than Copper on the chart).
What is the chemical formula for Magnesium Oxide?
MgO