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30.82g of nitrogen will react with 17.60g,35.20g,70.40g or 88.00g oxygen to form four different compounds.calculate the mass of oxygen per gram of nitrogen in each compound
What is the decay constant for iodine-131? It decays by beta emission with a half-life of 8.04 days.
The temperature of the calormieter increases from 19.7 C to 20.6 C if under constant volume condidions, the heat of combusion of glucose is -2805 kJ/mol
Can some explain clearly how to determine the valence electrons of transitional metals and also their ions. for ex Mo, Mo2+, Ag, Pb. Pb2+. Confuse about what makes up their outer shell.
The rate of reaction indicates the speed at which the reaction can occur. It can be expressed in terms of a change in the concentration of reactants or products per unit of time
The vapor pressure of a mixture of 400 g of carbon tetrachloride and 43.3 g of an unknown compound is 137 torr at 30 °C. The vapor pressure of pure carbon tetrachloride at 30 ºC is 143 torr
Acetic acid is a weak monoprotic acid. it is the active ingredient in vinegar. if the initial concentration of acetic acid is .200 M and the equilibrium concentration of h3o+ is .0019 M, calculate Ka for acetic acid.
Calculate the amounts of C 7 H 8 , C 7 H 16 , and H 2 in the output stream express your answer (in mol s -1 ).
The average C--H bond energy in CH4 is 415 kJ/mol. Use the following data to calculate the average C--H bond energy in ethane (C2H6; C--C bond), in ethene (C2H4; C=C bond), and ethyne (C2H2; C (triple bond) C).
An endothermic chemical reaction with ?E = +41 kJ/mol has an activation energy of +95 kJ/mol. What is the activation energy for the reverse reaction
A healthy individual has a blood glucose concentration reported as 122 mg/dL. convert that to units of g/L
If one uses benzaldehyde rather than p-nitrobenzaldehyde in the aldol reaction the yield is extremely low, if it works at all. Offer an explanation for this result.
what is happening to the observed cell potential, Ecell and E0Cell as Zn2+ increases and Cu2+ decreases?
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