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Oxygen gas reacts with powdered aluminum according to the following reaction:
4Al(s)+3O2(g)→2Al2O3(s)
What volume of O2 gas, measured at 785 mmHg and 30 °C , is required to completely react with 53.7 g of Al ?
Express the volume in liters to three significant figures.
A 128.2-mL sample of a 0.15 M solution of H3PO4 is titrated with 0.18 M NaOH. What volume of base must be added to reach the third equivalence point
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Explain how many moles of H2O much water is formed. Define what are the total pressure as well as the partial pressure of each gas after the reaction
25 g of a certain metal is heated in boiling water and then poured into 90 mL of water initially at 22.0oC. After the water has resumed a constant temperature.
How many moles of ethane (C2H6) would be needed to react with 62.3 grams of oxygen gas?
Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium, what is the limiting reagent
calcualte the pH at one-half the equivalence pont and at the equivalence point for a titration of 50 mL of 0.100M acetic acid with 0.100M NaOH
when steam condenses to liquid water 2.26kj of heat is released per gram. the heat from 168g of steam is used to heat a
The pH is 3.95 at the first equialence point and 9.27 at the second equivalence point. If the acid solution contained 0.2015 g of the acid, what is the molar mass, pKa1, and pKa2 of the acid
How much heat is required to raise the temperture of an object with a heat capacity of 3.4 j/k from 17.34 k to 67.18k?
suppose you decide to define your own temperature scale using the freezing point -11.5 c and boiling point 197.6 c of
What does it mean to describe a reaction as "reversible"? When writing an equation, how is a reversible reaction distinguished from a nonreversible reaction? If a reaction is reversible, when can it be said to have reached equilibrium?
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