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Calculate the molarity and the molality of reagent grade nitric acid. The specific gravity of this solution is 1.40 and its weight percent of solution is 70.0%
Calculate the concentration of iron (II) chloride contaminant in the original groundwater sample. Round your answer to significant digits.
What is the maximum amount of iron(III) oxide that can be formed. What is the FORMULA for the limiting reagent.
a 130g piece of metal is heated to 286C and dropped into 87.0g of water at 26C, if the final temperature of the water is 58.3C.
In a certain chemical reaction, 7.29g of compound A is added to 5.70 g compound of B. Once the reaction is complete, 3.60 g of compound A and 1.17g of compound B remain. What is the mass of products was produced
Compare in your mind 3 different liquids: pure ethanol, a 50% ethanol/water mixture and a 50 % ethanol/methanol mixture. Rank these three liquids in order of increasing Ptotal when each liquid is in equilibrium with its vapor at 25ºC.
In a vessel with a volume 3 m^3 you put 0.03m^3 of liquid water and 2.97m^3 of water vapor so the pressure is 101.33 kPa.
what mass of Na2CO3 will be required to titrate 75.0 mL of 0.350 M HCl. This is the balanced equation given Na2CO3+2HCl--->2NaCl +H2O+CO2
A saturated aqueous solution of lead(II) iodate, Pb(IO3)2, contains 3.1 x 10-5 M Pb+2 at 25°C. Assuming an ideal solution, and assuming no reaction of the ions with water, calculate the Ksp of lead(II) iodate at that temperature.
The overall reaction 2Co3(aq) + 2Cl(aq)---> 2Co (aq) +Cl2(g) has the standard cell voltage Ecell=0.46V. Given that Cl2(g) +2e -->2Cl (aq), E=1.36V, calculate the standard reduction potential for the following half reaction at 25 degrees C, Co3 +e-..
Consider the reaction N2(g) + O2(g) 2NO(g), for which Kc = 0.10 at 2,000ºC. Starting with initial concentrations of 0.040 M of N2 and 0.040 M of O2, determine the equilibrium concentration of NO. A) 5.4 × 10-3 M B) 0.0096 M C) 0.011 M D) 0.080 M E..
In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching frequency, we would not have expected to observe the latter stretching mode in the infrared spectrum. Why
If you compare the melting point of a slightly impure mixture with the melting point of a pure compound, the melting point of the slightly impure mixture will be: a) broader and lower than the eutectic mixture
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