This is a unit of measurement used in chemistry to express amounts of a chemical substance, defined as the amount of any substance that contains as many particles as there are atoms in 12 grams of carbon-12 isotope.
What is mole?
100
This is how many atoms are present in 3 moles of Carbon.
What is 1.806 x 10^24 atoms of Carbon?
100
What is the percentage of oxygen in water?
What is 88.8% O?
100
This is the empirical formula of a compound composed of 39.3% sodium and 60.7% chlorine.
What is NaCl?
100
This is the formula of zinc sulfate heptahydrate.
What is ZnSO4 • 7 H2O?
200
These are salts containing water molecules combined in a definite ratio as an integral part of the crystalline structure.
What is a hydrate?
200
This is the mass of 2.58 moles of copper (II) chloride.
What is 346 g CuCl2?
200
This is the percentage of sulfur in magnesium sulfide.
What is 56.8% S?
200
This is the empirical formula of a compound that consists of 76.5% carbon, 12.2% hydrogen, and 11.3% oxygen.
What is C9H17O?
200
This is the name of SnCl4 • 5 H2O
What is tin (IV) chloride pentahydrate?
300
This is the chemical formula of ammonium perchlorate.
What is NH₄ClO₄?
300
This is the number of particles that are present in 87.9 g of nickel (II) bromide?
What is 2.42 x 10^23 particles NiBr2?
300
These are the percentages of carbon, hydrogen, and oxygen in glucose (C6H12O6).
What is 40% C, 6.7% H, and 53.3% O?
300
This is the molecular formula of CH2O if the molar mass is 120.1g/mol.
What is C4H8O4?
300
This is the molar mass of calcium nitrate tetrahydrate.
What is 236.14g/mol?
400
This is the chemical formula of iron (III) nitrate.
What is Fe(NO₃)₃?
400
This is the amount of space is occupied by 8.7 x 10^23 molecules of carbon dioxide.
What is 32 L CO2?
400
This is the percent by mass of phosphate in iron (III) phosphate.
What is 62.97% PO4?
400
This is the empirical formula of estriol which has a molecular formula C18H24O3.
What is C6H8O?
400
This is the percentage of water in beryllium sulfite tetrahydrate.
What is 44.6% water?
500
This is the chemical formula for lead (IV) acetate.
What is Pb(C₂H₃O₂)₄?
500
This is the mass of 1.987 x 10^24 particles of mercury (II) sulfide.
What is 767.7 g HgS?
500
This is the percentage of sodium in sodium acetate.
What is 28% Na?
500
This is the molecular formula of strychnine, a deadly poison, which has a percentage composition of 75.42% carbon, 6.63% hydrogen, 8.38% nitrogen, 9.12% oxygen and has a molar mass of 334 g/mol.
What is C21H22N2O2?
500
This is the name of a hydrate containing calcium chloride based on this data...
Mass of hydrate compound: 4.72g
Mass of anhydrous compound: 3.56g