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An experiment shows that a 115 mL gas sample has a mass of 0.169 g at a pressure of 699 mmHg and a temperature of 31C.What is the molar mass of the gas?
A jogger runs at an average speed of 5.9 mi/h. a. How fast is she running in m/s? b. How many kilometers does she run in 98 min?
If 6.46 L of gaseous ethanol reacts with 16.1 L O2, what is the maximum volume of gaseous carbon dioxde produced
How many moles of KMnO4 are present in 25.0 mL of a 0.0900 M solution?
The activation energy for the isomerization of methyl isonitrile (see figure below) is 160 kJ/mol. Calculate the fraction of methyl isonitrile molecules that has an energy of 160.0 kJ or greater at 499 K.
cube of a silver-colored metal with a volume of 64 cm3 has a mass of 672 g. The density of pure silver is 10.5 g/cm3. Is the metal pure silver?
The nitro group needs to be taken off as well. I can't seem to find any reference materials on what reagrents can be used. Can you please advise?
Suppose a 5.00 L sample of O2 at a given temperature and pressure contains 2.73 × 1023 molecules. How many molecules would be contained in 5.00 L H2 at the same temperature and pressure.
Calculate the standard heat of reaction, or , for this reaction using the given data. Also consider that the standard enthalpy of the formation of elements in their pure form is considered to be zero.
Given Data; P4+6Cl2=4PCl3 change temp= -2439 kj ,4PCl5=P4+10Cl2 change temp= 3438 kj calculate change in temp for the reaction PCl5=PCl3+Cl2.
Suppose that 160 g of ethanol at 30?C is mixed with 230 g of ethanol at 76?C at constant atmospheric pressure in a thermally insulated vessel.
What is the freezing point (°C) of a solution prepared by dissolving 11.3 g ofCa(NO3)2 (formula weight= 164 g/mol) in 115 g of water? Assume that i=3.00 for Ca(NO3)2 and the molal freezing point depression constant for water is1.86°C/m.
If each mole of gas occupies 55 L under the conditions of the explosion, how many liters of gas are produced? c) how many grams of N2 is produced in the detonation?
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