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a gas has a volume of 590mL at a temperature of -55.0 C. what volume will the gas occupy at 30.0C?
A sample of gas has a density of 1.25 g/dm at 30 degrees C and 1.02x10^5 Pa. What is the molecular mas of this gas?
Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams, of 143 mL of ethanol.
Assume no heat is lost to the surroundings. The normal boiling point of methane is -161.5 C. The specific heats of liquid and gaseous methane are 3.48 and 2.22 J/g.K, respectively. A)liquid B)gaseous C)solid
Important information about Heat and temperature, What is Heat? What is temperature? What are the various properties that account for temperature?
An archeologist finds a huge monolith in the desert. In order to estimate the weight of this object; he estimates the dimensions of the monolith and removes some chips from the rock with his hammer.
water has a molar heat of vaporization =40.79 kJ/mol, determine how many grams of water could be vaporized by 0.806 kilo Joules heat? Express your answer in units of g
13.00 moles of gas are in a 5.00 L tank at 22.6 C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2*atm/mol2 and b = 0.0430 L/mol.
What is the formula of the zinc sulfate hydrate? name this compound
if the freezing point of a .106 m CH3COOH solution is -.348 degrees Celsius, calculate the percent of the acid that has undergone ionization?
How much would an empty volumetric flask, (weighing 27.16 grams, has a volume of 100.4 cm3 ) weigh when filled with bromine, an element that has a density of 3.1028 g/cm3.
A compound of forumula C14H12 gave a positive Baeyer test and burned with a yellow, sooty flame. Treatment with ozone followed by hydrolysis in the presence of zinc gave formaldehyde as one of the products.
How much heat is released when 4.50 g of methane gas is burned CH4 (g) + 2O2(g) -> CO2 (g) + 2H2O(l) H=-890kJ
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