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Elemental exonium (not a real element) consists of two major isotopes Abundance Mass 55% 98 amu, 45% 114 amu What is the atomic weight for exonium? Answer in units of amu
Find the volume of oxygen gas required to react completely with iron and Calculate the volume of oxygen gas at STP that is required to completely react with 61.0 g of iron.
A pipette is used to add 46 mL of 0.3 M Pb(NO3)2 to a 273.0 mL solution of 0.3 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8
A 80.0 mL volume of 0.25 M HBr is titrated with 0.50 M KOH. Calculate the pH after addition of 40.0 mL of KOH.
An unknown compound has the formula CxHyOz. You burn 0.220 g of the compound and isolate 0.312 g of CO2 and 0.191 g of H2O.
Calculate the pH of each of the following strong acid solutions: 5.00 mL of 1.00 M HCl diluted to 0.500 L d) a mixture formed by adding 50.0 mL of 0.020 M HCL to 150 mL of 0.010 M HI
Calculate Kc for the reaction 2CCl4(g) + O2(g) [3] 1.75 moles of H2O2 were placed in a 2.50 L reaction chamber at 307C. After equilibrium was reached, 1.20.
Determine the final concentration if A 129 mL portion of that solution is diluted using water of 149 mL.
How many atoms of carbon are present in 73 g of a compound that is 83.3% carbon, by weight?
How many molecules of carbon dioxide are produced when 130 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Determine the mass of CuSO4 · 5H2O that must be used to prepare 250 mL of 0.88 M CuSO4(aq).Answer in units of g.
If 2.50L of 1.25M BaCl2 added to 3.50L of 2.45 M NaCl, what is molarity of Chloride ions in final solution
If 132 mL of wet H2 is collected over water at 24°C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
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