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The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to raise the temperature of 6.00 g of water from 20.0 °C to 44.1 °C?
What mass of this substance must evaporate in order to freeze 150g of water initially at 15C? (The heat of fusion of water is 334J/g the specific heat of water is 4.18J/g*K.)
given the reaction 4als 3o2g --gt 2al2o3s what is the minimum number of moles of oxygen gas required to produce 1.00
What is the final pH of the solution when 15.0 mL of 0.121 mol/L NaOH(aq) and 35.0 mL of 0.181 mol/L HNO2(aq) are mixed? Assume the temperature is 25oC.
Balanced thermochemical equation and enthalpy diagram, The decomposition of zinc carbonate, ZnCO3(s), into zinc oxide, ZnO(s), and CO2(g) at a constant pressure requires the addition of 71.5kJ of heat per mole of ZnCO3.
a) Write the rate expression for this reaction. What is the rate appearance of D if the rate of dissappearance of A is 4.80x10^-6 M/sec?
Osteo imperfecta displays a wide range of symptoms for mild to servere. On the bases of amino acid and collagen structure,
Determine how many milligrams of H 2 O are present in sample If the freezing point of a 100.0g sample of 2-methyl-2-propanol =24.59C?
placed in 1.00*10^3 g of water at 25C. final temp of this mixture was 26.3C. What is specific heat of metal?
Calculate the electrode potential of the following half cell if it was at standard conditions. Then recalculate how this changes using.
Find the ?H for the reaction below, given the following reactions and subsequent ?H values: PCl5(g) ? PCl3(g) + Cl2(g)
An 11.2 liter flask at 0 degrees C contains one mole of oxygen, two moles of nitrogen and three moles of helium. What is the pressure in the flask
water in order to raise the boiling point of the solution by 0.5 C? Assume the ideal van't Hoff factor for NaCl.
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