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Na2CO3+H3PO4=Na3PO4+H2O+CO2 find the limiting reagent if you strat with 450ml if 2.6M NA2CO3 and 88 grams of H3PO4, what is the maximum amount of grams you can make of Na3PO4? how many grams of the other starting martial is left over
A 250 g yo-yo is swung on the end of a50 cm string at a constant speed of 4 m/s. What is the centripetal force acting on the yo-yo?
Explain which of the following choices has the compounds correctly arranged in order of increasing solubility in water?
Three students in the class determine the weight of the crucible by repeated weighings on a simple balance. (A) Using the following information, which student has done the most accurate determination? (B) Which student has done the more precise de..
Calculate ?G° for the reaction of ammonia with fluorine. 2NH3(g) + 5F2(g) ? N2F4(g) + 6HF(g) Substance: NH3(g) F2(g) N2F4(g) HF(g) ?G° f (kJ/mol): -16.4 0 79.9 -275.4 179.1 kJ -179.1 kJ 1539.7 kJ -1539.7 kJ None of these choices is correct.
The crystal structure of lithium sulfide Li2S is pictured here. The edge length of the unit cell is 5.88*10^2pm. What is the density of Li2S in grams per cubic centimeter?
What is the reaction mechanism (detailed with arrows) for trans-cinnamaldehyde when reacted with benzyltriphenylphosphonium chloride?
How much heat is absorbed when 5.53 mol of NH4NO3 solid is dissolved in water? (Heat of soluton = 25.7 kJ/mol)
Detremine the concentration of chromate solution - Potassium chromate has an absorbance value
Calculate pFe2+ at each of the following points in the titration of 25.00 mL of 0.02075 M Fe2+ by 0.03540 M EDTA at pH 7.00: a) 11.50 mL, b) Ve, c) 19.00 mL.
A sample of chlorine gas at a pressure of 420 mm Hg and in a volume of 3.50 L was heated from 18.0oC to 45.0oC after being transferred to a container of volume 2.35 L. The pressure in this new container should be about
find the gram formula mass of each compound.a. li2sb. fecl3c.
A 0.0100 molal aqueous solution of a weak acid freezes at -0.0219 oC. Calculate the percent ionization of the weak acid, HA.
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