What is the gram molecular mass of a compound if 5 moles of the compound have a mass of 100 grams
20 g
100
According to the Arrhenius theory, a substance that had only hydrogen ions in an aqueous solution
What is an acid?
100
The vapor pressure of a liquid equals the vapor pressure on its the surface, the liquid will do this
What is boil?
100
Explain what balancing equations is, the process
What is making sure the same number of each atom is on each side? You can only change the coefficient and not the subscript.
100
According to reference table D the solubility curves. The number of grams fo KClO3 needed to saturate 100 grams of H2O at 40 C
What is 16 grams?
200
What is the mass in grams of one mole of O2 gas?
32grams
200
Give the reaction HSO4 - + H2O = H3O+ + SO4 2- the acid base conjugate pair
What is HSO4- and SO4 2-?
200
This is a characteristic of all mixtures.
What is the composition can vary?
200
A sample of H2 (g) at STP contains 9.03 x 10 23 molecules. The volume of this sample.
What is 33.6 L
200
Balance the reaction Mg(s) + HCl (aq) = MgCl2(aq) + H2 using the correct coefficients.
What is 1, 2, 1, 1?
300
What is the gram formula mass of Ca3(PO4)3
405 grams
300
The pH of an solution where the H3O+ concentration is 1 x 10 -5
What is an acidic pH of 5?
300
A chemical formula is an expression used to represent this
What is elements or compounds?
300
A 1 kilogram sample of water will have the highest freezing point when it contains
a) 1 x 10 17, b)1 x 10 19, c) 1 x 10 21, d) 1 x 10 23
particles
What is a?
300
A 20 mL sample of HCl is neutralized by 32 mL of 0.50 M KOH, the molarity of the HCl
What is 0.8M?
400
The molarity of a solution that contains .25 mole of solute in 250mL of solution
What is 1.0 M?
400
This is an aqueous solution that turns litmus red
What is an acid?
400
This type of solution equilibrium exists
What is saturated?
400
A one liter flask contains two gases at a total pressure of 3.0 atomospheres. If the partial pressure of one of the gases is 0.5 atomosphers then the partial pressure of the other gas must be this.
What is 2.5 atomospheres?
400
This happens to the solubility of a gas when the temperature rises
What is decreases?
500
Calculate the gram formula mass or GFM
What is add all of the elements atomic mass and multiple by the subscripts then add all of it together?
500
The number of moles of HCl needed to neutralize 0.1 liter of .5M NaOH
What is 0.05 moles?
500
The symbol after a compound that means a mixture is present
What is (aq) for aqueous?
500
These Kelvin temperatures represent the normal freezing point and boiling point of water.
What is 273 K and 373 K?
500
The molarity of a solution when 40 mL of HCl is neutralized by 20 mL of 0.10 M NaOH