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Bomb calorimeter:
Weight of coal= 5.0 g,
Weight of water in calorimeter =1000g,
Water equivalent of calorimeter =500 gm,
Initial temp=15
1 All metals has shiny surface.
2 Copper can be pulled into wire.
3 We cannot cut Sodium with knife because it’s very hard.
4 All metals can be a good conductor of heat and electricity.
In order to verify the heat of reaction a chemist mixes 1 L of 1MNAOH and 1 L of 1MHCL the initial temperature of the two solutions is 25°C the specific heat of water is 4.184 J program for Celsius the enthalpy of reaction of the following is -58 kJ per mole considering only the specific heat of the 2 L of water and no heat transfer to or from the surroundings what is the final temperature of the solution?
The second is defined as the time it takes for 9,192,631,770 wavelengths of a certain
transition of the cesium-133 atom to pass a fixed point. What is the frequency of this
electromagnetic radiation? What is the wavelength?
weighing a total of 20.505 g was ground into a fine powder. A 3.116-g sample was
dissolved and treated to precipitate the iron as Fe(OH)3. The precipitate was collected,
rinsed, and ignited to a constant weight as Fe2O3, yielding 0.355 g. Report the iron content
of the dietary supplement as g FeSO4•7H2O per tablet
Calculate the number of moles of aluminium ion and tetraoxosulphate (vi)ion in 50cm^3 of 1molar aqueous solution of ammoniumtetraoxosulphate (vi)
Describe how ethane react with accidifide potassium tetraoxomaganate(vii)
Combustion reactions are a notable source of carbon dioxide in the environment. Using the following balanced equation, how many grams of carbon dioxide are formed when 100.00 g of propane (C3H8) is burned? Express your answer to the correct number of significant figures. Be sure to show all steps completed to arrive at the answer.
A 225 gram of mercury has a volume of 16.5 ml. What is the density of mercury? What is its specific gravity?
