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Calculate the concentration of a NaHCO3 (in water) solution in several ways and are given the following information: 25 g NaHCO3, 500 mL solution.
(a) Calculate the mass/volume percent concentration.
(b) Calculate the molarity of the solution.
Determine the mass of 28.56 mL of acetone and express your answer in grams? also find out the volume, of 6.54 g of acetone and express your answer , in mL?
Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural gas, in a two-step process.
A 0.233 g sample of an unknown monoprotic acid was titrated with 0.105 M KOH and the resulting titration curve is shown below. It took 35 mL to reach the equivalence point. What is the molar mass of the acid
A sprinter set a high school record in track and field, running 200.0 m in 21.6 s. What is the average speed of the sprinter in kilometers per hour
how many grams of potassium chloride will be generated on decomposition of 225 grams of potassium
Calculate the five points indicated in the experiment introduction and show these values in a small table along with one sample calculation.
if the amount of hg in an industrial-waste pond is 0.39 micrograms ugml how much hg is present in kg if the pond has a
If you add a solvent called "dioxane" to water, a homogenous mixture forms. Dioxane and water have the same boiling point (100oC). How do you explain that the mixture of the two compounds shows a boiling point that is lower than the one found for ..
Calculate the ion mobility of 100nt long DNA molecules and single nucleotide molecules. Correlate this to the conductivity of the solution.
Which of the following reactions is the formation reaction for CH3OH(l)
A 0.75-L bottle is cleaned, dried, and closed in a room where the air is 24°C and 50.% relative humidity (that is, the water vapor in the air is 0.5 of the equilibrium vapor
Calculate the molarity of a Ca(OH)2 solution if it takes 25.0 mL to titrate 0.650 g of KHP in a standardization titration. (KHP has one H+ and a formula weight of 204.2 g/mol.)
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