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Two liters of argon gas at 300 K and 5 atm are expanded against a constant opposing pressure of 1 atm until mechanical equilibrium is achieved. When the process is over, the gas is at 280 K. Calculate w, q and delta E.
Elemental analysis of putrescine (The rotten smell of a decaying animal carcass is partially due to a nitrogen-contained compounded) showed
A flask contains 0.180 of liquid bromine,. Determine the number of bromine molecules present in the flask.
A sample of an ideal gas has a volume of 3.55 L at 13.20 °C and 1.60 atm. What is the volume of the gas at 22.80 °C
How many kilograms of magnesium can be obtained from 5.96 km^3 of seawater if the initial Mg^2+ concentration is .19% by mass. Remember the density of seawater is 1.04 g/ml
HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous water
Erythrocytes phosphorylate glucose to glucose 6-phosphate with the help of the enzyme hexokinase instead of glucokinase. Hexokinase has a Km = 0.04 mM.
What is the total sample size (in grams) for a sample of disulfur octoxide which contains 3.52 g of oxygen.
Cyclopropane is made up of 85.7% C and 14.3% H. What is the molecular formula of cyclopropane? And what is it chemical formula?
What is the equilibrium constant Kc of this reaction? Use an ICE table with numbers.
A sample of neon has a volume of 575 mL when it is at a pressure of 751 mmHg. What will be the volume when the pressure is increased to 1262 mmHg?
The first-order decomposition of phosphene to phosphorus and hydrogen 4PH3(g) → P4(g) + 6H2(g)
Draw an arrow pushing mechanism for the formation of the acylium ion when acetic anhydride reacts with phosphoric acid.
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