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How much nitrogen is in nitrogen di oxide?
1 mol of nitrogen per 1 mol of oxygen. NO2
How many gram of water is equal to 2.2 mol of water?
2.2 mol water = 2.2 (mol) * 18 (g/mol) water = 39.6 (mol*g/mol) = 40 g18 g/mol = mol mass of H2O = 2*H + 1*O = (2*1 + 16) g/mol
How much energy is generate from freezing 2.5 g water?
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
When you have 0.43 mol of NH4Cl how many total moles of ions are released when each of the following samples dissolves completely in water Show work so I can understand how to do it on my own?
When NH4Cl dissolves in water, it dissociates into NH4+ and Cl- ions. Since NH4Cl produces one NH4+ ion and one Cl- ion, for 0.43 mol of NH4Cl, there will be a total of 0.43 mol of NH4+ ions and 0.43 mol of Cl- ions released. Total moles of ions = 0.43 mol NH4+ + 0.43 mol Cl- = 0.86 mol ions The total moles of ions released when 0.43 mol of NH4Cl dissolves in water is 0.86 mol.
What is the molar mass of OH?
The molar mass of the hydroxide ion (OH-) is approximately 17 g/mol. This includes the combined mass of one oxygen atom (16 g/mol) and one hydrogen atom (1 g/mol) that make up the hydroxide ion.
