Thursday
April 24, 2014

Posts by Persia


Total # Posts: 11

CHEMISTRY
IN THE REACTION P4 +5 O2= 2P 2 O5. HOW MANY MOLES OF O2 ARE CONSUMED EACH TIME 0.5 MOLES OF P2 O5 ARE FORMED?

Chemistry
THE MOLAR MASS OF CALCIUM OXALATE,CaC2O4 IS 128G/MOLE. WHAT % OF CARBON IS CALCIUM OXALATE?

Chemistry
4HN3 + 5 O2 = 4NO + 6 H20. How many grams of O2 are required to produce 90 grams of NO?

CHEMISTRY
Would you please further explain the steps to sloving #2? Thanks

CHEMISTRY
1).What is the pressure in a 1.5 L vessel containing 0.25 moles of O2 if the temperature is 37 degrees celcius? 2).The molar mass of MgCO3 is 84g/mole. How many moles are in 12.60g of MgCO3?

CHEMISTY
Dr. Bob222 I'm not following. Would you please further explain? Thanks

CHEMISTY
WHAT IS THE MOLARITY OF A SOLUTION PREPARED BY DISSLOVING 4.92 GRAMS OF CALCIUM NITRATE, Ca(NO3)2 in 250 mL OF WATER?

Chemistry
What volume (in liters) is occupied by 0.01 moles of carbon monoxide, CO, at 9 degrees celcius and 0.973 atm?

Chemistry
Ethane, C2H6 has a molar heat of vaporization of 15 kj/moles. How many kilojoules of energy are required to vaporize 5 grams of Ethane?

chemistry
GIVEN THE FOLLOWING CHEMICAL EQUATION: 3 +Cu +8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O. 1).HOW MANY MOLES OF Cu(NO3)2 ARE PRODUCED WHEN 3 MOLES OF Cu REACT? 2).HOW MANY MOLES OF Cu MUST REACT TO PRODUCE 4 MOLES OF NO? 3). If 4 moles of NO ARE PRODUCED HOW MANY MOLES OF h2o are also ...

Chemistry
Given the following chemical equation: 3 Cu + 8 HNO3 = 3 Cu(NO3)2 + NO + 4 H2O. How many moles of HNO3 are required to react with 6 moles of Cu?

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