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A crystalline unit cell contains oxygen atoms on all edges of the cell and rhenium atoms on each corner. What is the formula for rhenium oxide?
-Re2O3
-Re2O
-ReO3
-ReO2
a particular gas exerts a pressure of 785 mmHg. what is this pressure in units of Atmospheres
What is the Molarity of a solution prepared by diluting 55mL of .65 M hydrochloric acid solution to a final volume of 155mL by adding water.
Silver has two isotopes and an average atomic mass of 107.87 amu. If 48.18% of Ag exists as Ag-109 (108.9047 amu), what is the identity of the other isotope?
B)if water is added to 150ml of a 1.2M KCL solutionuntil the volume is 150 ml what is the new molarity?
What is the molaity of a solution prepared by dissolving 75.8 of ethylene glycol, HOCH2CH2OH, in 1.45 L of water? assume the density of water is 1.00 g/mL.
What is the minimum amount of Tc-99 that must be shipped in order for the lab to receive 10.0 mg? Show you working please
What are all the possible products for the following alkane substitution reactions?
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
if 2.325g of an unknown acid compound is made up to 200.0 mL with water. 10.00 mL of the resulting solution requires 15.43 mL of 0.1808 M NaOH.
If the minimum energy required to break the C-Cl bond in CF3Cl is 540 kJ/mol, what is the longest wavelength of radiation that will break this bond?
When 0.062 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 200 milliliters of solution, how many ammonium ions are present.
What is the FORMULA for the limiting reagent? What is the maximum amount of potassium carbonate that can be formed in grams?
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