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An emerald has the chemical formula Be3Al2Si16O18.  What is…

An emerald has the chemical formula Be3Al2Si16O18.  What is the percentage of aluminum in the gemstone?

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Which two symptoms are possible complications of status epil…

Which two symptoms are possible complications of status epilepticus?

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How many neutrons are in in the nucleus of an atom of chlori…

How many neutrons are in in the nucleus of an atom of chlorine-37?

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Refer to the periodic table and predict which of the followi…

Refer to the periodic table and predict which of the following ions are isoelectronic with the noble gas neon:      (a)  Li+      (b)  Na+      (c)  Mg2+      (d)  F-      (e)  Cl-

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Blood sugar, glucose, has a molar mass of 180 g / mol.  What…

Blood sugar, glucose, has a molar mass of 180 g / mol.  What is the molecular formula of glucose if the empirical formula is CH2O?

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Write a chemical equation for the neutralization of aqueous…

Write a chemical equation for the neutralization of aqueous acetic acid, CH3CO2H, with aqueous sodium hydroxide, NaOH, to give aqueous sodium acetate plus water.     A.  CH3CO2H (l)    +  NaOH (aq)            >     CH3CO2Na (aq)  +  H2O (l)   B.  CH3CO3H (aq)  +  NaOH (s)              >     CH3CO2Na (aq)  +  H2O (l)   C.  CH3CO2H (aq)  +  NaOH (aq)           >     CH3CO2H (aq)    +  Na2O (s)   D.  CH3CO2H (aq)  +  NaOH (aq)           >     CH3CO2Na (aq)  +  H2O (l)  

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Calculate the molar mass for calcium phosphate, Ca3(PO4)2.

Calculate the molar mass for calcium phosphate, Ca3(PO4)2.

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Use data for sugarcane bagasse from Table 4.6 in exam handou…

Use data for sugarcane bagasse from Table 4.6 in exam handout. It is proposed to construct a 50 MW CHP plant in a sugar refining facility. The power plant will use sugarcane bagasse with moisture content 35% (on wet weight basis) which is available at the facility as a waste product. The heat rate of the power plant is 13500 Btu/kWh. Calculate the annual sugarcane bagasse requirement (in metric tons as available or wet weight basis).

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See Question 7 for background information. If ash fouling is…

See Question 7 for background information. If ash fouling is a problem, raw coal is available to blend with sugarcane bagasse for use as a fuel for CHP plant. The raw coal, which contains virtually no alkali and no moisture has a heating value of 28 MJ/kg, sulfur (S) content of 4 % (by weight) and chlorine (Cl) content of 0.1 %(by weight). Calculate the minimum amount of coal that should be blended with sugarcane bagasse to prevent ash fouling.

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What is the maximum number of electrons that can occupy the…

What is the maximum number of electrons that can occupy the 3d energy sublevel?

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