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Using the same sample of gas ( P1= 695 , T2 = 27 ), we wish to change the pressure to 6950 with no accompanying change in volume or amount of gas. What temperature T2, in Celsius, is needed to reach this pressure?
Calculate the quantity of heat in calories release when 241.62 g of water is cooled from 80.6°C to 28.0°C.
What is the concentration of each ion in a solution formed by mixing 44.0 mL of 0.100 M Na2SO4 and 25.0 mL of 0.150 M KCl?
Describe inorganic chemistry
how much energy (MJ) can be obtained from incineration and how much CO2 (kg/year) may be released in that year? 2) How much of that energy (MJ) can be actually converted into electric power if the conversion efficiency is 23%?
1)What is the percent ionization of HA in 0.11 mol/L HA(aq) if HA is a weak acid with pKa=6.00. Enter your answer accurate to three significant figures.
Use the Henderson-Hasselbach equation to calculate the pH of a buffered solution that has a propionic acid CH3CH2CO2H concentration of 0.060 M ad potassium propinate CH3CH2CO2K concentraton of .090 M.
Given that the most common mineral in limestone is calcium carbonate, describe how these limestone objects are corroded by the sulfuric acid in polluted air. What chemical reaction is involved here?
When a student cleans their dorm room, the entropy of the system must decrease. How is this NOT a violation of the second law of thermodynamics?
write a complete ionic equation and if there is a phase change you need to then write a net ionic equation and list the spectator ions copper (ii) sulfate plus silver nitrate equals copper (ii) nitrate and silver sulfate
Draw the electron-dot formula for each of the following molecules or ions: a) HCCH (ethyne); b) CS2 (C is the central atom); c) NO^+
Where does the extra electron come from when determining the formal charge of NH2? N has 5 valence electrons and H each have one which lead to two bonds and one lone pair and one lone electron which equals a formal charge
Write a balanced equation for each of the two steps of the reaction, namely: (1) the reaction between benzyltriphenylphosphonium chloride and sodium hydroxide
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