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2,2-dibromo-3-methylpentane can be prepared by an addition reaction of excess HBr with an alkyne. Draw the structure of the alkyne, name it, and write the reaction
A small amount of solid AgBr was added to a 0.0100 M solution of NaBr, causing it to become saturated with AgBr. A silver electrode was placed in the solution along with a reference electrode, whose electrode potential was 0.246 V
The volume of a 24.0-g sample of methane gas is 22.8 L at 40.0°C and 4.00 atm. What will its volume be at 68.0°C and 4.00 atm.
The reaction of 0.25 g magnesium with 100 mL of 1 M hydrochloric acid (density d = 1.02 g/ml) raises the temperature of the solution from 20 °C to 35 °C . The specific heat for HCl is 3.93 J/(g.C).
Which is predicted to be the most ionic substance? a) NiS b) CuI c) CoO d) NaBr
A sample of CO2 gas at 795 torr is cooled from 25°C until the new pressure is 125 torr. Calculate the new temperature of the gas.
0.2 grams of HCl is dissolved in 0.8 grams water. the density of the solution formed 1.10 g/mL. What is the molarity of the solution
Discuss the value that non-executive board members bring to an organization. Provide specific examples to support your response.
Draw a cooling curve for a sample of steam that cools from 110 degrees C to -10 degrees C. indicate the segments of the graph that correspond to each of the following: a)solid; b) freezing; c) liquid; d) condensing; e) gas.
The value of Ksp for silver carbonate, Ag^2CO^3, is 8.10 X 10^-12 . Calculate the solubility of Ag^2CO^3 in grams per liter.
Describe the procedure for preparation of 250 cublic cm of aqueous sulphamic acid of accurately known concentration.
To identify a diatomic gas (X2), a researcher carried out the following experiement. She weighed an empty 4.2L bulb, then filled it with the gas at 1.30atm and 23.0C and weighted it again. The difference in mass was 6.3 g. Identify the gas
when 0.120 mol of carbonis burned in a closed vessel with 6.90g of oxygen. how many grams of carbon dioxide can form??
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