Chem Comp
One mole is identified as Avogadro's number of particles - what is this number (in its entirety!)
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6.022 x 1023
The _______ ___________ by mass is a ratio of the mass of one element to the mass of the entire compound, expressed as a percentage.
What is percent composition?
Calculate the molar mass of cesium chloride. (Hint: Cs = 132.91 g/mol; Cl = 35.45 g/mol)
What is 168.36 g/mol?
Calculate the molar mass of K2S (Hint: K = 39.10 g/mol; S = 32.06 g/mol).
What is 110.27 g/mol?
This is where Santa lives.
What is the North Pole?
The mass of one mole of a substance is its molar mass in units of _____ per ____ and is determined from the periodic table.
What is grams per mole?
The _________ _______ is an atom ratio (or mole ratio) of the elements in a compound, expressed as the lowest possible whole-number ratio.
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What is empirical formula?
Calculate the molar mass of H2Cl2 (Hint: H = 1.01 g/mol; Cl = 35.45 g/mol).
What is 72.92 g/mol?
Calculate the molar mass of NiCl2 (Hint: Ni = 58.69; Cl = 35.45 g/mol).
What 129.59 g/mol?
This famous snowman was featured in the 1969 cartoon film by the same name.
Who is Frosty?
_____ ____ can be used to convert between mass (in grams) and the number of moles of a pure substance.
What is molar mass?
The _________ _______ shows the exact number of atoms of each element in a formula unit or molecule.
What is molecular formula?
Calculate the molar mass of the hydride CaSO4 * 2(H2O). (Hint: Ca = 40.08 g/mol; S = 32.06 g/mol; O = 16.00 g/mol; H = 1.01 g/mol).
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What is 172.18 g/mol?
Calculate the molar mass of the hydride C2H4Cl2 * 6(H2O) (Hint: C = 12.01 g/mol; H = 1.01 g/mol; Cl = 35.45 g/mol; O = 16.00 g/mol).
What is 207.05 g/mol?
Fill in the blank: "Oh Christmas ____, oh Christmas ____, how lovely are thy branches."
What is... tree?
Because a compound's formula unit often contains more than one atom or ion of an element, the _____ described by the formula can be used to convert the number of formula units (or molecules) to the number of atoms/ions of a given element in a sample.
What is the ratio or subscript?
Provide the empirical formula for the following compound: C4H8
What is CH2?
Calculate the mass of 0.2 mol of Cl2O5 (Hint: Cl = 35.45 g/mol; O = 16.00 g/mol).
What is 30.18 g?
Calculate the molar mass for Mg(NO3)2 (Hint: Mg = 24.31 g/mol; N = 14.01 g/mol; O = 16.00 g/mol).
DOUBLE JEOPARDY!!!
What is 148.33 g/mol?
This is the main character of "A Christmas Carol".
Who is Ebenezer Scrooge?
Provide the formula for percent composition.
What is % = (part (g) / whole (g)) x 100%
Provide the molecular formula for a compound with a mass of 70 g/mol and empirical formula of CH2.
What is C5H10?
Calculate the mass of 1.5 mol of NaHSO4 (Hint: Na = 22.99 g/mol; H = 1.01 g/mol; S = 32.06 g/mol; O = 16.00 g/mol).
What is 180.10 g?
Determine the number of iodine molecules in 0.5 moles of I2.
What is 3.01 x 1023?
This traditional holiday dairy drink (aka milk punch).
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What is eggnog?