αѕнℓєу ℓуηη (laughtooloud) wrote in chemistree,
αѕнℓєу ℓуηη
laughtooloud
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Help.

Another take home quiz. My answers are behind the cut. Help me out, please. :]


<lj-cut text="Thanks in advance.">

Name the following compounds:
(NH4)2S: <b>Ammonium Sulfide</b>
N2O5: <b>Dinitrogen Pentoxide</b>
HNO2: <b> Nitrous Acid</b>
Mg3N2: <b>Magnesium Nitride</b>
Sn3P2: <b>Tin (II) Phosphide</b>
CF4: <b>Carbon Tetrafluoride</b>
PO4: <b>Phosphorus Tetroxide</b>
HI: <b>Hydroiodic Acid</b>
NH4OH: <b>Ammonium Hydroxide</b>
CaHCO3: <b>Calcium Bicarbonate</b>
 
Write formulas for the following compounds:
Iron (II) Carbonate: <b>Fe2(CO3)3</b>
Beryllium Phosphate: <b>Be3(PO4)2</b>
Boron Triiodide: <b>BI3</b>
Hydrobromic Acid: <b>HBr</b>
Carbon Disulfide: <b>CS2</b>
Acetic Acid: <b>HC2H3O2</b>
Aluminum Nitride: <b>AlN</b>
Leah (IV) Oxide: <b>Pb(OH)4</b>
Iron (II) Sulfide: <b>FeS</b>
Magnesium Hydrogen Sulfite: <b>Mg(HSO4)</b>

How many iodine atoms are in 1 unit of Ca(IO4)2?
<b>2</b>

How many total atoms are in 1 molecule of C6H12O6?
<b>180.16</b>

Calculate the molar mass of CH2O.
<b>34.02</b>

How many moles of oxygen atoms are in 1 mole of CO2 molcules?
<b>2</b>

How many moles of iodine atoms are in 2.5 moles of CI4 molecules?
<b>10</b>

How many moles of water are in a 25g sample of water?
<b>1.39</b>

What is the mass of a 3.8 mole sample of carbon dioxide?
<b>167.2</b>

Calculate the molar mass of C10H10 to 1 decmial place.
<b>130.2</b>
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