Acid or Base???
Specifics of Acids and Bases!
Solutions!
Graphs!
Math in Science is FUN!
100
It tastes sour and smells strong
What is acid
100
pH= 3, pH=4, pH=11 Which pH represents the solution with the strongest acidity?
What is pH=3 *bonus 50pts, which pH is closest to neutral?*
100
I am trying to dissolve some salt in tomato sauce. What is the solute, solvent, and solution?
solute = salt solvent = tomato sauce solution = tomato sauce with dissolved salt
100
In Graph A: Which is the independent and dependent variable.
independent = temperature dependent = solubility
100
The molar mass of Sodium carbonate (Na2CO3)
What is ~106 grams/ 1 mole Sodium carbonate
200
It neutralizes acids
What is base?
200
Sodium hydroxide (NaOH) is a strong base and produces a lot of ___________ ions.
What is HYDROXIDE IONS
200
Solutes can be polar or nonpolar. Solvents can be polar or nonpolar. What combinations gives you soluble solutions? What combinations gives you insoluble solutions?
Soluble: polar and polar OR nonpolar and nonpolar Insoluble: polar and nonpolar OR nonpolar and polar
200
In Graph A: What is/are the solute(s)? What is/are the solvent(s)?
Solutes: 9 of them in the graph! Solvent: water
200
What is the Molarity of a 3 Liter solution once I dissolve 85 grams of Sodium carbonate (Na2CO3)?
What is 0.27M
300
Can dissolve fats and oils.
What is a base.
300
Answer in complete sentences. Neutralization is... .... 100pt bonus (include what the products are).
Neutralization is the process when a strong acid and a strong base react together. The reaction produces a salt and water.
300
Surpassing solubility until crystallization forms after too much solute was dissolved in the solvent is an example of _____________.
What is SUPERSATURATION
300
In Graph A: The compound that showed the greatest increase in solubility between 30-50 C in temperature.
What is KNO3
300
How many moles of Sodium carbonate will I need to make a 4M solution with 200mL?
What is 0.8 moles of Sodium carbonate
400
Can corrode metals.
What is an acid.
400
If you have a solution with a pH of 2 it is a _______ _______. If you have a soltuion with a pH of 14 it is a _______ ______.
strong acid strong base
400
If the solubility of NaCl at 20⁰C is 36.2g/100mL of H2O, what mass of NaCl can be dissolved in 50 mL of H2O?
What is 18.1 grams of NaCl
400
In Graph B: When strong acids react with water, they result in ________ dissociation of _____________. When weak acids react with water, they result in _______ dissociation of ______________.
Strong acids: COMPLETE dissociation of HYDROGEN IONS. Weak acids: MODERATE dissociation of HYDROGEN IONS
400
What is the percent composition of all the elements in Sodium carbonate? (Na2CO3)?
Na=(43.3%); C=(11.3%); O=(45.3%)
500
One produces hydroxide ions (OH-) and the other produces hydrogen (H+) ions
What is base (OH-) and acid (H+)
500
What is the pH close to when you mix a strong acid with a strong base? And what is its category?
close to neutral (pH =7).
500
Low surface area, Low temperature, not stirring are all ways to __________ random molecular motion.
DECREASE. **100+ points, what are three ways to increase?*** ***400+ points, define random molecular motion in complete sentence****
500
When looking at acids and bases, ________ acids and _______ bases are best to conduct electricity because they completely dissociate to produce ___________ and __________ ions.
STRONG acids and STRONG bases are best to conduct electricity because they completely dissociate to produce HYDROGEN and HYDROXIDE ions. ***DOUBLE POINTS ROUND, 1,000 POINTS **** complete sentence, does weak acids and weak bases conduct electricity? why?
500
Suppose 30 grams of sodium carbonate is dissolved in 103 grams of water. What is the concentration of the solution in ppm?
225,564 ppm
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