What is the atomic mass of element
Isotope 1 has a mass of 120.9038 {rm amu} and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9041 {rm amu}. What is the atomic mass of this element?
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Assuming that the specific heat capacity of the solution is 6.37J/degree celcius g and the density of the final solution is 2.00 g/mL, calculate the enthalpy change per mole of BaSO4 formed.
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A 25.0 cm3 portion of this solution required 0.10 mol of NaOH for neutralisation. What is the number of moles of SO2Cl2 dissolved in water?
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How Many moles of CO2 when 15.5 ml of a 3.00 M HCI reacts with excess CaCO3? The calcium carbonate in limestone reacts with HCl to procduce a calcium chloride solution and carbon dioxide.
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