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If a solution of Na2CO3 has a pH of 10. The CO32- on is the conjugate base of the HCO3- ion. State the net ionic equation for the reaction which makes a solution of Na2CO3 basic.
2.50 moles of cobr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. at
use the chemical equation 2ch3ohg 3og2co2g4h2og to estimate the quantity of energy released in the combustion of
calculate the freezing and boiling points of each of the following solutions. 0.40 mol ethylene glycol and 0.17mol KBr in 122 g H2O.
25.0 ml of a calcium chloride solution is added to an excess of aqueous silver nitrate. the resulting precipitate has a
A gaseous mixture of O2 and Kr has a density of 1.140 g/L at 415 torr and 300. K. What is the mole percent O2 in the mixture?
Show that the proton condition for a NH4Cl solution is a linear combination of the mass balance equations and the charge balance equation.
Calculate the mass in grams of hydrogen chloride produced when 5.05L of molecular hydrogen measured at STP reacts with an excess of molecular chlorine gas.
Which absorption band present in the acetaminophen spectrum but absent in the p-aminophenol spectrum indicates that this product is an amide
An unknown metal M reacts with S to form a compound with a formula M2S3.If 3.12g of m reacts with exactly 2.88g of sulphur, what are the names of metal M and compound M2S3
a 0.450-kg ice puck moving east with a speed of 3.00ms has a head-on collision with a 0.900-kg puck initially at rest.
Which of the following is a property of acid solutions?
A saline solution contains 171 mEq/L each of Na+ and Cl-. how many moles of each of Na+ and Cl- are in 1.50 L of the saline solution.
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