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In the directions it states "weigh about 5 grams of sodium chloride". Give minimum and maximum amounts of sodium chloride that would satisfy these instructions.
Solid CrF3 contains a Cr(III) ion surrounded by six F- ions in an octahedral geometry all at distances of 190 pm. However, MnF3 is in a distorted geometry with Mn-F distances of 179,191, and 209 pm (two of each).
write the balanced chemical equation and corresponding equilibrium expression for the each step in the ionization of phosphoric acid ( apolyprotic acid ) in water?
Calculate the pH of a solution containing 0.085 M nitrous acid (HNO2; Ka= 4.4 × 10-4) and 0.10 M potassium nitrite (KNO2).
A hydrogen-filled balloon was ignited and 1.50 gram of hydrogen reacted with 12.0 g of oxygen. How many grams of water vapor were formed?
What is the theoretical yield of hydrazine, in grams, prepared from the reaction of 125.0 mL of 0.500M NH3(aq) with 25.0mL of 1.70M NaOCl (aq)?
Using the value of Ksp for Agl, and Kf= 1.7 * 10^7 for Ag(NH3)2+1, calculate the molar solubility of Agl in 1.10 M ammonia (NH3) solution.
If toluene(density 0.87) were used to extract ethylene bromohydrin (density 2.41) from an aqueous solution.
Evaluate reversibility of a process where an ideal monoatomic gas is first slowly compressed 10-fold by a gradually increasing external pressure (gas remains in thermal equilibrium with the surroundings)
What state is being described in each case? Type either s for solid, l for liquid (make sure you type an l and not an i), and g for gas (assume ideal). If the statement applies to more than one state
The temp of the water and that of the gas are identical at 26°C. How many moles of Helium have been evolved?
Consider a 1.00-L solution containing 85.5 g Al2(SO4)3 (FW = 342.15) and 21.3 g Na2SO4 (FW = 142.06). What are the molar concentrations of aluminum, sodium, and sulfate ions, respectively.
For the reaction above, how much would be liberated by the combustion of 5.00g of iron metal in excess oxygen.
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