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When 1,2-diaminoethane dissolves in water, the resulting solution is basic. Write the formula of the ionic compound that is formed when 2 molar equivalents of hydrochloric acid is added to a solution of 1,2-diaminoethane. Write an electrically neutral answer.
if you burn 51.8 g of hydrogen and produce 463g of water, how much oxygen reacted?
What is the formula for the principle molecular or ionic species present in a aqueous solution of hydrogen bromide
a solution was prepared by mixing 43.00 ml of 0.190 m hno3 and 108.00 ml of 0.150 m hno3. calculate the molarity of the
You require to prepare a 100mM acetate buffer a pH of 5.5. Use the Henderson-Hasselblach equation to compute the number of moles and grams of sodium acetate (NaCH3COO) and the number of moles and mL of acetic acid (CH3COOH;stock is 16.6 M) require..
How much heat (in kJ) is required to warm 13.0 g of ice, initially at -110.0?C? The heat capacity of ice is 2.09 J/g??C and that of steam is 2.01 J/gC
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?
Problem- What is the equilibrium constant K for a cell where I2(s) is reduced and cobalt is oxidized at 25 degrees C? Explain and show math please.
how many days does it take for 16g of palladium-103 to decay to 1.0g? the half life of palladium -103 is 17days
Please explains why in the structure the 2-amino ethanol the alcohol is considered the number 1
But a3.00 g sample of Mg dissolves in nitric acid to give 18.3 g of magnesium nitrate, which gives 4.98 g of MgO when heated to 1000 degrees Celsius. These results illustrate which law, theory or hypothesis?
The vapor pressure of the water at 16 degrees C is 14 mmHg; CaCO3(s)-->CaO(s)+CO2(g): a) what is the partial pressure of the CO2 gas? b) How many moles of CO2 gas were in the CO2 gas sample
how many grams of Cu2S could be produced if 100.0g of copper is heated with 50.0g of sulfur? what is the amount of excess reactant?
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