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Give the systematic names for the formulas, or the formulas for the names. (Type your answer using the format copper(II) chloride for CuCl2, and using the format CO2 for CO2. Omit the centered dot for hydrates.)
(a) Na2HPO4
(b) potassium carbonate dihydrate
(c) FeBr3
(d) ammonium perchlorate
a gas company in massachusetts charges 1.30 for 15ft cubed of natural gas ch4 measured at 20 degrees celsius and 1.0
how many moles of oxygen are consumed with the combustion of one mole of butane. C4H10?
A 125-g piece of metal is heated to 288 oC and dropped into 85.0 g of water at 26 oC. If the final temperature of the water and metal is 58.0 oC, what is the specific heat of the metal (J/goC)
a 32.85-g sample of a solid is placed in a flask. toluene in which the solid is insoluble is added to the flask so that
Use the preceding information to predict the value of E for a silver-silver chloride electrode saturated with KCl. For the silver-silver chloride electrode, E° = 0.222 V
A mixture of 1.07 g H2 and 1.50 g He is placed in a 1.00-L container at 30.°C. Calculate the partial pressure of each gas and the total pressure.
Calculate the pH of 100 mL of .30 M NH3 before and after the addition of 4.0 g of NH4NO3 and account for the change. assume the volume remains constant
How many electrons, protons, and neutrons respectively are in the iron(III) ion, Iron- 56 with a 3+ charge
How much heat is released when 105 g of steam at 100 Co is cooled to ice at -15Co? the enthalpy of vaporization of water is 40.67 KJ/mol, the enthalpy of fusion for water is 6.01KJ/mol,
A gaseous mixture of O_2 and N_2 contains 40.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 325 mmHg?
A 2.00 x 10^-3 mole sample of actylsalicylic acid was dissolved in 15.00 ml of water and titrated with .100 M NaOH. The equivalence point was reached after 20.0ml of NaOH solution had been added.
Describe, using Raoult's law and Dalton's law of partial pressure, why the vapor pressure of a pair of miscible ideal liquids will always be somewhere in between the vapor pressures of the pure liquids (at the same temperatures).
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