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Calculate the mass of precipiate formed when 110.0 mL of a 0.100M Ba(NO3)2 solution is added to 140.0 mL of a 0.100M Na2SO4 solution. Calculate the concentrations of all ions in the remaining solution
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This experiment involves collecting data for the cooling of water between 175 o -160. o F in different containers. What is 175 o F in celsius? Please report your answer correctly to three significant digits.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
A metal slug weighing 16.32g is added to a flask with a volumeof 52.6 mL. it is found that, 40.2 g of methanol (d = 0.791 g/mL)must be added to the metal to fill the flask. What is the density of the metal in g/mL?
Why is (NH 4 ) 2 CrO 4 a molecular compound if ionic is metal + nonmetal and molecular is nonmetal+nonmetal? The Cr is a metal and the NH4 and O4 are non metal so it is metal+non metal but why cant it be ionic instead o ...
A sample consisting of 1.0 mol CaCO3(s) was heated to 800 °C, when it decomposed. The heating was carried out in a container fitted with a piston that was initially resting on the solid. Calculate the work done during co ...
A photon of wavelength 200 nm strikes the surface of a metal causing an electron to be ejected with kinetic energy of 4.3 x 10-19 J. What was the threshold frequency of the metal?
The following sequence of reactions occurs in the commercial production of aqueous nitcric acid: 4NH3(g)+ 5O2(g) -> 4NO2 (g) + 6H2O(l) ΔH = -907 kJ 2NO(g) + O2(g) ? 2NO2(g) ΔH= -113 kJ 3NO2 + H2O(l) -> 2HNO3(aq) + NO(g) ...
A 41 kg person walking 5.6 km/hr requires 758 kJ of energy per hour. How much further does he have to walk to consume the addition energy contained i 320 g of ground beef relative to 320 g of broiled chicken? The energy ...
Silver nitrate has the molecular formula AgNO3. In a 109.0 g sample of silver nitrate, how much of that mass (in g) is from the silver atoms?
A chemistry lab experiment requires 67.4 grams of silvernitrate. How many grams of a 15.5% by mass solution of silvernitrate should be used?
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