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If 25.0 g of a solution of potassium iodide (transparent and colourless) and 15.0 g of a solution of lead nitrate (transparent and colourless) are mixed in a hermetically sealed container, a shiny yellow solid forms and sinks to the bottom of the container. What will be the total mass of the container's content once the yellow solid has formed? Explain your reasoning.
the open end of a melting point capillary tube allow you to measure the melting point of a compound that sublimes?
Compute the partial pressure of Ar(g) that is needed to achieve this. You may assume that delta(vap)H for water is independent of temperature and pressure
what mass of titanium displaces 65.2 ml of water at 25 circ rm
The density of lead is 11.4 g/cm3 at 25°C. Calculate the volume occupied by 25.0 g of lead.
Describe the two methods for determing the volume of the vapor In a Molar Mass of a Volatile Liquid experiment? Which method is likely to give more precise results? Why?
The procedure calls for cautions addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reac..
The piece of iron with a mass 102.9g was submerged in a graduated cylinder filled with water. The initial level of water was 20.0 ml. The density of iron is 7.86 g/ml.
How many grams of magnesium hydroxide are present in 1.0 L of a saturated solution at room temperature
An empty Erlenmeyer flask weighs 246.3 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 495.0 g. (a) What is the flask's volume? (b) How much does the flask weigh when filled with chloroform (d = 1.48 g/cm3)
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 1-bromopropane. Draw the chemical structure of the alkene that you could make using these reagents in a synthesis that involves the Wittig reaction.
If 0.500 g of antacid was added to 50.00 mL of 0.100 M HCL and 5.65 mL of 0.100 M NaOH was required to titrate the un-neutralized HCL, calculate the actual neutralizing capacity of the antacid in mmol H+ per gram.
An unknown compound having the molecular formula C3H6O was tested in the laboratory. It was found to be soluble in water; it showed a negative reaction when it was tested with a chromic acid solution.
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