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What are the products of a double displacement reaction involving sodium hydroxide and hydrochloric acid
An insoluble non reactive solid metal sphere weighing 41.55 g is added to 35.82 mL of water in a graduated cylinder. If he density of the metal is 11.91 g/mL
Calculate the maximum concentration of Ba2+ in water when solid BaCl2 and BaSO4 are present. Calculate whenBaCLs and BaSO4 are seperate and together.
What is the molar weight of the compound. Note: the freezing point depression constant of water is 1.86 oC/m
The bacteria Azotobacter chroococcum grows aerobically and plays an important role in the soil nitrogen cycle. Azo can bind atmospheric nitrogen which is inaccessible to plants then release ammonia ions into the soil that plants can absorb
A graduate student tried to make -fluorophenylmagnesium bromide by adding magnesium to an ether solution of -fluorobromobenzene.
At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure
The force to push electrons through a battery comes from (a) the energy levels of the electrolyte (b) the intrinsic work function difference of two different metals (c) from electricity (d) an unknown source of energy
Why are Supporting Electrodes (KCl) used? Please explain about around these 3 factors: resistance, potential near electrode
A solution is 0.0100 M in Pb2+ ions. If 0.103 mol of solid Na2SO4 is added to 1.00L of this solution (with negligible volume change), what percent of the Pb2+ ions remain in solution.
Propanol freezes at -89.5 degrees C and boils at 82.3 degrees C. What quantity of heat is needed to convert 10.0 g of solid 2-propanol at -89.5 degrees C to a vapor at 82.3 degrees C?
How do you calculate the pH of a solution given the concentration of OH- ions?
The rate constant of a reaction is 4.7 10-3 s-1 at 17°C and the activation energy is 33.6 kJ/mol. What is the value of k at 75°C.
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