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.
A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 °C and 90 kPa, find the molecular formula for this compound.
A rudder is tested in a two-dimensional flow tunnel of height h = 1 m, as shown in the following figure. After the flow has become steady, the horizontal velocity far ahead of the rudder is found to be uniform and given by u = U = 2 m/s.
What is the molarity of a solution of silver perchlorate, AgClO4, if 3.2 moles of silver perchlorate is dissolved in 1.5 liters of water? Is it 2.133 M, 4.756 M, 4.8 M, or 4.810 M ?
A concentration cell consists of two H2/H+ half cells. Half cell A has H2 at 0.87 atm bubbling into 0.10 M HCl. Half cell B has H2 at 0.45 atm bubbling into 2.2 M HCl. What is the voltage of the cell?
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?
The break up of a liquid jet into droplets of diameter d depends on the jet diameter D, the jet velocity V, viscosity Mu, density rho,and surface tension sigma.
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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