How many moles of o2 are consumed each time
In the reaction P4 + 5 O2 → 2 P2O5, how many moles of O2 are consumed each time 0.5 moles of P2O5 form?
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Write balanced molecular, ionic, and net ionic equations for the reactions of chromium (gives Cr3+) with solution of dilute sulfuric acid to give hydrogen plus the metal ion in solution (assume full acid dissociation).
What will be the enthalpy change (to 2 significant figures) for the reaction when 1.5 g of lithium metal reacts with chlorine gas at constant pressure?
What is the value of this 20 year lease? The first payment, due one year from today is $2,000 and each annual payment will increase by 4%. The discount rate used to evaluate similar leases is 9%
KCl has the same structure as NaCl (Face-centered). The length of the unit cell is 628 pm. The density of KCl is 1.984 g/cm^3, and its formula mass is 74.55 amu. Using this information, calculate Avogadro's number.
The temperature rose by 0.910 K. In a separate experiment in the same calorimeter, the combustion of 0.825 g of benzoic acid, for which the internal energy of combustion is -3251 kJ mol-1, gave a temperature rise of 1.940 K. Calculate the internal
What proportion of the molecules have enough speed to escape when the temperature is (a) 240 K, (b) 1500 K? Calculations of this kind are very important in considering the composition of planetary atmospheres.
When 25.0mL of .500M H2SO4 is added to 25.0mL of 1.00M KOH in a coffee cup calorimeter at 23.50 degree Celcius, the temperature rises to 30.17 degree celcius. Calculate ethalpy of this reaction.
A municipal bond carries a coupon rate of 7% and is trading at par. A corporate pays a rate of 10%at what marginal tax rate would an investor be in deferent between these two bonds?
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The purpose of this assignment is to critically examine the relationship between culture and mental health in a country outside of the United States.
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