Stoichiometry
Acids & Bases
Equilibrium
Thermodynamics
Structure
100

6.0 mol C3H8 and 20. mol Cl2 are reacted. How many mol HCl are produced? 

What is 20. mol?

100

How do you find the molarity of the acid if you are given this graph and the volume of the acid?

What is, do the voom-voom? 

100

Is solubility of AgCl higher or lower in a solution of NaCl? Why?

What is lower because of common ion effect? 

100

Equal mass samples of Fe and Al are heated from 25 to 75 degrees C. Which sample has the highest kinetic energy?

What is, they have the same kinetic energy. 

100

Which is smaller, F- or Ne and why ?

Ne, greater nuclear charge leads to higher coulobmic force. 

200

30. mL of 1.0M HCl is reacted with 0.56 g of Fe at STP. How much H2 gas is produced? 

What is 0.22 L? 

200

HF has pKa = 2.1. Explain 2 ways to make a buffer with pH = 2.1. 

What is, add equimolar NaF/KF, or add half-molar NaOH/KOH. 

200

Ksp = 1.6 x 10-14 for CaCO3. What expression should you use to solve for solubility? 

what is s2

200

What are four ways you can increase the rate of a reaction? 

What is, increase SA, increase concentration, increase temp, add a catalyst?

200

What is the ground state electron configuration of the valence shell of Vanadium? 

What is 4s2?

300

Eli wants to make a galvanic cell by combining these half reactions. To calculate deltaG, what value for n should he use? 

What is, n= 2, or what is Let Eli figure it out himself.

300

10 mL of NaOH was titrated against 0.10M HCl. What is the molarity of the NaOH? 

what is 0.30M

300

In a saturated solution, [Sr2+] is 0.04. What is [OH-]?

What is 0.08? 

300

What happens to the concentration of N2 if the volume of the system is increased at t2?

what is N2 increases? 

300

Which is bigger and why, Ca or Ca2+?

What is Ca because it has an extra energy level? 

400

What equipment would you use to make a 0.100 M solution of HCl from a 1.00 M stock solution? 

What is a volumetric flask and a volumetric pipet or a buret? 

400

10mL of Ba(OH)2 is titrated with 0.1M HCl. What is the concentration of Ba(OH)2?

What is 0.15M? 

400

If each particle is 0.1M, what is the equilibrium constant, k? 

what is k = 4

400

In an exothermic equilibrium system, what happens to the equilibrium constant if temperature is increased? 

what is k decreases?

400

Which is bigger S or S2- and why? 

S2- because the extra electrons in the valence shell repel each other. Use Coulombs law to justify. 

500

Order of reaction with respect to HCl? 

What is first order? 

500

To make a buffer with pH 3.4, how much 0.1M NaOH should be added to 100mL of 0.1M HNO2 (pKa = 3.4)

What is 50mL? 

500

At 25 degrees C, Ksp = 1.9 x 10-5 for PbCl2. What expression to solve for solubility of Cl2?

what is 4s3, then multiply by 2? 

500

4 cups of coffee at 95 degrees C were stirred with 4 different spoons until themal equilibrium was reached. Which cup is hottest? 

What is cup B?

500

How is it that Silver can only achieve an oxidation state of +1 even though its a transition metal? 

what is, a 1s electron falls into the 4d10 position, leaving 1s electron to be lost, thus +1 oxidation state. 

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