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The following solutions were combined:
28.0mL of 0.250M HNO3 + 53.0mL of 0.320M KOH
What is the concentration of H+ or OH- ions in excess after the reaction goes to completion?
what is the final volume of a 400.0 ml gas sample that is subjected to a temperature change from 22.0 degrees C to 30.0 degrees C and a pressure change from 760 mm Hg to 360 mm Hg
40ml of solution that was saturated with calcium oxalate required 1.76 ml of .00101 M permanganate to titrate it. what is the ksp value for calcium oxalate
when 0.273-gm of Mg is reacted at high temperatures with N2 to produce 0.378-gm of a solid, MgxNy. Calculate the empirical formula of the product.
ammonia and hydrazine are both compounds of nitrogen and hydrogen.based on the law of multiple proportions how many
An empty graduated cylinder weighs 82.450 g. Whe filled to 50.0 mL with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid?
Carbon dioxide is removed from the atmosphere of space capsules by reaction with a solid metal hydroxide. Theproducts are water and the metal carbonate
a 45-year-old woman is receiving a combined modality treatment for the initial stage of breast cancer. state the two
Calculate the gas NH3 in ppm over NH4OH solution.The density of the solution is 0.9g/ml and the Commercial concentrated aqueous ammonia is 29%.
A solution contains 4.56 g of KCl in 175 mL of solution. if the density of the KCl solution is 1.12 g/mL, what are the mass percent (m/m) and moarity (M) for the KCl solution
How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?
How many seconds does it take to deposit 1.63g Ni on a decorative drawer handle when 13.7A is passed thorugh a Ni(NO3)2 solution
Calculate what quantity of potassium chlorate that has molecular weight of 122.5 needed to form 33.6 litres of oxygen? Express your answer in grams and assume that temperature and pressue will be in normal condition?
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