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Hydrochloric acid (HCl) reacts with sodium carbonate (Na_2CO_3), forming sodium chloride (NaCl), water (H_2O), and carbon dioxide (CO_2). This equation is balanced as written:2HCl(aq)+Na_2CO_3(aq)---> 2NaCl(aq)+H_2O(l)+CO_2(g)
What volume of 1.25 M HCl in liters is needed to react completely (with nothing left over) with 0.500 L of 0.500 M Na_2CO_3? Express your answer to three significant figures and include the appropriate units.
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
the vapor leaving the top of a distillation column goes to a condenser in which either total or partial condensation takes place.
A photon having E = 46.9 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
Calculate the cost in free energy to move 1mol K+ through the cell wall by active transport. Assume no change in K+ concentrations during this process.
How many grams of dry NH4Cl needed to be added to 1.50L of a 2.00M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.60?
Methylated lidocaine, Lidocaine is thought to bind to receptors in its methylated form. Identify in writting the atoms or groups in the compound that could be involved in its binding to a receptor via- hydrogen bonding an ionic interaction
what is the volume of co2 that can be removed using a 2.6 kg sodium peroxide cartilage? evaluate at stp. temp 0 degrees C and 1atm pressure.
If the walls in a room are 955 square feet in area, and a gallon of paint covers 15 square yards, how many gallons of paint are needed for the room?
while heating two different samples of water at sea level one boils at 102 c and one boils at 99.2 c. Calculate the percent error for each sample from the theoretical 100.0 c
Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.
Sketch a phase diagram for benzene and locate these points: the triple point (5.5 0C and 3.4 mmHg), the normal boiling point (80.10C)
solutions of ag plus, cu 2 plus, fe 3plus, and Ti 4 plus are electrolyzed with the constant current until 0.10 mole of metal is deposited. which will require the greatest lenght of time.
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