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how many grams of NaNO3 would you add to 250.0g of H2Oin order to prepare a solution that is 0.500 molal in NaNO3
2 FeS + 3 N2 → 2 FeN + 2 SN2 This reaction has a 65.0% yield. How much N2 is consumed if 13.6 g of FeN are produced?
A 25.0 mL sample of a 0.115 M solution of acetic acid is titrated with a 0.144 M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.
a certain protein was found to contain 0.639% zinc by mass. Determine the minimum molecular mass of the protein.
What is the heat of combustion per gram of butane?
A mixture consisting of .150 mol H2 and .150 mol I2 is brought to equilibrium at 445 degrees celcius in a 3.25 L flask. What are the equilibrium amounts
Calculate the delta h required to 1 mole of ice at -25 degrees celcius to convert steam at 125 degrees celsius
What is the most significant intermolecular attraction in a pure sample of CH3F
Determining a Four Stroke Engine's Dimensions Based on its Power, The engine produces indicated power of 35 HP. While it is running at 2500 RPM. Find the dimension of the engine.
What is the hydroniem ion concentration in a solution resulting from mixing 193mL of .100M HCN and 22mL of .100M KOH at 25C? Ka for HCN=4.9x10-10
What is the percent yield of a reaction in which 111.6 g phosphorus trichloride reacts with excess water to form 60.8 g HCl and aqueous phosphorous acid (H3PO3)?
What mass of copper would you expect to be deposited from a copper (II) sulphate solution using a current
A 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Upon cooling, the camphor freezes at 157.7°C. Calculate the molar mass of the unknown compound.
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