Total number of moles of ca
Given the reaction: Ca + 2H2O Ca(OH)2 + H2
What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
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A Styrofoam cup containing 200.0 g of water at 55.3C. Calculate the molar heat of vaporization of liquid nitrogen if the final temperature of the water is 41.0C.
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A bucket of mass 2.0kg is whirled in a vertical circle of radius 1.1m. At the lowest point of its motion the tension in the rope supporting the bucket is 25N.
Given the reaction: Ca + 2H2O Ca(OH)2 + H2. What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
Question 1:-A p-well is to be formed for a CMOS process. The n-type substrate has a doping level of 2×?10?^15 ?cm?^(-3).the hole concentration at the surface of the well is to be ?10?^16 ?cm?^(-3), and well -substrate metallurgical ju
The system H2(g) + I2(g) ?? 2 HI(g) is at equilibrium at a fixed temperature with a partial pressure of H2 of atm, a partial pressure of I2 of atm, and a partial pres- sure of HI of atm. An additional atm pressure of HI is admitted to the con- tai
A metal object with a mass of 19g is heated to 96 degrees C, then transferred to a calorimeter containing 75 g of water at 18 degrees C. What is the specific heat of this metal object.
Estimate the mean ionic activity coefficient for NaCl in a solution that is 0.020 mol/kg NaCl(aq) and 0.035 mol/kg Ca(NO3)2 (aq)
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