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1.How many molecules of NH3 do you have when you have 2.6 moles of NH3 ?
2.How many moles of water do you have when you have 1.12 x 10 26 molecules of water?
3.How many moles of zinc, Zn, do you have when you have 94.6 g of zinc?
Calculate the molarity of ammonium bromide solution. Use the molarity of the solution to find the mass of ammonium bromide in 1.00 L of this solution.
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 27.6 g of carbon were burned in the presence of 87.2 g of oxygen, 13.6 g of oxygen remained unreacted. What mass of carbon dioxide was produced?
Calculate the molarity of a solution made by dissolving 0.650 grams of Na2SO4 in enough water to form exactly 880 mL of solution.
Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH
what is the color of cocl2 (aq) solution at boiling water temperature? And in which direction did the equilibrium shift upon
will 500 mg of Na3C6H5O7 (258.1g/mol) or 500 mg of CaCO3 (100.1g/mol) neutralize more moles of hydronium ion? Assume that both the C6H5O7^(3-) and CO3^(2-) ions become fully protonated.
If a reaction between Zn and I2 takes place, are the physical and chemical properties of the substances isolated during and after mixing the same as or different from those of Iodine and Zinc? Explain using the reaction as an example.
Determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn field was observed at 3.0 ppb. ?
Calculate the number of formula units of the compound and the number of each ion in 3.75 moles of AlCl3.
Metabolism of one mole of glucose, C6H12O6, releases 6.70 × 102 kcal. How much heat is released by the combustion of 50.0 g of glucose?
What dilution would be necessary to get the absorbance of 62.2 down to 3.1
Determine the volume of 6.44*10^-2 M adenosine triphosphate (ATP) that is having 1.68 mol of adenosine triphosphate express your answers in (mL)?
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