Chapter 6/7
What type of bonding would be expected between Li and F?
Ionic
(F) 4.0 - (Li) 1.0 = 3.0 Ionic
Give an example of an indicator of a chemical reaction.
Color change, realase of gas, bubbles, heat is expelled
What is Theoretical Yield?
The maximum amount of a product that can be produced from the given amount of reactants.
What is the molar volume at STP?
22.4L/1mol
What is the acid used to preserve drinks and add flavor?
Phosphoric Acid
What are the 7 Diatomic Molecules?
N2, O2, F2, Cl2, Br2, I2, H2
What does this mean in a chemical reaction: ⇌
How many grams of nitrogen dioxide are produced when 10.5 grams of oxygen react? 2NO(g) + O2(g) → 2NO2(g)
30.2g NO2
What is the Combined Gas Law equation?
P1V1/T1 = P2V2/T2
What reaction between an acid and a base produces salt and water?
Neutralization
What is the name of CBr4?
Carbon tetrabromide
What type of reaction is this? H2O + SO3 → H2SO4
Synthesis
How many grams of methane will be generated from 145 grams of Al4C3 if excess water is present? Al4C3(s) + 6H2O(l) → 4Al(OH)3(s) + 3CH4(g)
18.50g H2SO4
A gas occupies 1.02 L at 3.00 atm. What will be the volume of the gas if the pressure becomes 12.00 atm?
0.225 L
What is the pH from the given [OH-] value: 1.0 x 10-6
8 pH
What is the percent of water found in MgCrO4 x 5H2O?
42.8%
Is Al(OH)3 soluble?
No.
In the combustion reaction of ethyne (C2H2). What is the theoretical yield of CO2 if 24.96 grams of C2H2 are reacted with 73.6 grams of oxygen?
81.0g CO2
A balloon had a volume of 7.0 liters at a temperature of 34C. It was placed into a freezer and was cooled to -18C. What is the new volume?
5.82 L
What is the hydroxide ion concentration of a KOH solution that has a pH of 9.2?
1.58 x 10-5 M
What is the percent composition in each element for the following: Ba(NO3)2?
Ba: 52.5%
N: 10.7%
O: 36.7%
Predict the Products: CaI2(s) + Cl2(g) -->
CaCl2 + I2
A 45.00-g sample of silver nitrate is mixed with 55.00 g of hydrochloric acid to form a white precipitate of silver chloride. After the solution is filtered and dried, a white precipitate of mass 33.50 g is collected. What is the percent yield of silver chloride? AgNO3 + HCl → AgCl + HNO3
88.4%
A gas has a pressure of 0.684 atm at 26.0 C. What is the pressure at a standard temperature?
0.625 atm
Calculate the pOH of a solution that contains 1.94 × 10-10 M hydronium ions.
4.29