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A gas mixture is made by combining 8.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 19.20 L.
What is the molar mass of the unknown gas?
Identify the unknown gas.
How many grams of CH4 is needed to produce 49.0 g CHCl3? CH4(g) + 3 Cl2(g)-> CHCl3(g) + 3 HCl(g)
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
What is the estimated temperature of the object using the above approximate prescription? What is the percent error?
Various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.
What is the pH of a solution prepared by dissolving 11 mmol of a weak base in 350 mL of a 0.199-M solution of its conjugate acid
An organic mixture weighing 2.416 grams contains inert materials and benzoic acid. The benzoic acid is extracted into 100.0 mL of 0.1513M NaOH. After extraction
Electrolysis of molten MgCl2 is the final production step in the isolation of magnesium from seawater by the Dow process.
How much heat was transferred from the tank? b) What is the final temperature of the tank contents? c) How much steam condensed, in kg? for a i found the difference in enthalpies but i cant figure out b, c
Quinine emits fluorescence at the wavelength of 347 nm. An unknown quinine solution gave fluorescence reading of 400 (after background subtraction) at the 347nm.
A 141-mL sample of gas is collected over water at 22°C and 753 torr. What is the volume of the dry gas at STP?
calculate the final pressure and the number of moles of H2 in each flask
a toxicologist studying mustard gas, S(CH2CH2Cl)2, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 c) at equilibrium S(CH2CH2Cl)2 = .350 M. calculate Kp
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