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If you take a 10.0 mL portion of a 14.8 M ammonia solution and dilute it to a total volume of 0.250 L, what is the concentration of ammonia in the final solution? Provide an answer correct to 2 significant figures. For example, if you calculate that the correct answer is 12 milliliters, simply type 12 in the box. Do not answer this question using scientific notation. Do not include units in your answer.
Explain if a 0.3345 g sample contains 0.00345 moles of Fe, then explain what is the percent weight of Fe in the sample. If the molecular weight of Fe is 55.85 g/mole
calculate the pressure in atm exerted by 1.00 mole of acetylene at 125degc in a 20.0-liter container. the van der waals
What mass of sucrose should be combined with 549 g of water to make a solution with an osmotic pressure of 9.00 atm at 280 K? (Assume the density of the solution to be equal to the density of the solvent.)
Weight 8.916 g CoCl2. 6H2O and dissolve it in 250 mL volumetric flask. Calculate the molarity of the CoCl2 solution prepared. Molecular weight of 6H2O= 237.9908g/mol
the mass of water is 92.6 grams the initial temperature of the water is 58.9 degrees celsius the mass of teh liquid
The simplest formula of the compound is NO2 Which could be the molecular formula of the compound?
Calculate the percent water: mass of water lost / mass of hydrated salt x 100%. E. Write the empirical formula for hydrated alum, based on your experiment.
A volume of 60.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4)What was the molarity of the KOH solution if 22.2 mL of 1.50 M H2SO4 was needed?
How do I find Ksp, if the molar solubility of KNO3 is 7.486 M?
how many NH4Cl moles and how many NaOH moles would you need? About how many more moles of NaOH could you add before the buffer breaks down?
A solution containing 80 g of KCl in 200 g of water at 50 0 C is cooled to 20 0C, a) How many grams of KCl remained in solution at 20 0C and b) How many grams of KCl crystallized out
The temperature of a gas in a sealed container changes from 20.0 oC to 40.0 oC. If the volume remains constant, the pressure will change from 740 mm Hg to
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