Which of the following changes decrease the pressure of a gas?

Oxygen gas in air reacts with 5.75 g of hydrogen gas to give 51.2 g of water.  Use the conservation of mass law to predict the mass of reacting oxygen.       H2 (g)     +     O2 (g)      →      H2O (l)

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

Which two symptoms are possible complications of status epilepticus?

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

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-

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

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)  

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

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).