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What is the amount of heat (kJ) required if 64.0 kg of H2O is heated from 25°C to 85°C? 200.0 g Al (C = 0.900 ) at 95°C is added to 85.4 g H2O at 25°C. What is the final temperature of the water (and the Al)? 500.0 g ethyl alcohol at 25°C (C = 2.46 J/g x °C) absorbs 74.0 J of heat energy. What is the final temperature?
a 5.08-g chunk of potassium is dropped into 1.06 kg water at 24.0degc. what is the final temperature of the water after
Calculate the pH in a solution prepared by dissolving 0.08 mol of solid NH4CL in 0.450 L of 0.35 M NH_3. Assume that there is no volume change.
The numerical value of the faraday constant is given as 96500 this value represents the number of carried by
an unknown compound has the following chemical formula crohx where x stands for a whole number. measurements also show
determine the number of moles of hydrogen atoms when you are given 2 moles of
What amount of Potassium Chloride forms when 5.25 litres of Chloride gas at 0.95 atm and 293 K reacts with17.0 g of Potassium
What is the density of the gas from the previous example if it contains 90% methane 10 % ethane under bottom hole condition (assume T=150 degrees F)
The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given symbols, waht is the absolute pressure at the bott..
Write the balanced chemical equation using the lowest possible whole number coefficients for Fe2O3+2Al = 2Fe+Al2O3.
A mixture of .220 moles CO, .350 moles H2 and .640 moles He has a total pressure of 2.95 atm. What is the pressure of CO
Thomas used equimolar amounts of diethylamine and alpha chloro-2,6-dimethylacetanilide in the preparation of Lidocaine. All the starting material reacted but failed to isolate any Lidocaine.
calculate the ph of solution formed by mixing 150 ml of 0.10m hc7h5o2 with 100 ml of 0.30m nac7h5o2. the ka for hc7h5o2
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