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Chemical Syntheis :At the end of the reaction you are to add ice. Which of the following are reasons for the adding ice?
1) The melting ice dilutes the concentrated acids.
2) The ice cools the reaction thus slowing it down to the point where it is effectively stopped.
3) The excess reactant will be destroyed by the ice.
4) Ice will help filter the product mixture.
5) The ice absorbs the heat generated by the reaction.
when .65 moles of iron metal react with 40.0 mL of a 2.5 M copper (II)chloride solution to produce copper metal and iron (III) chloride. How many moles of copper will be produced?
What mass of CaCl2, when dissolved in 100.00g of water, gives an expected freezing point of -5.0 degrees celcius; CaCl2 is ionic?
The concentraion of comercially availble concentrated nitric acid is 70.0 percent by mass, or 15.9M. Calculate the density of the solution (Please explain in detail how to find density) Density in g/mL
The reverse reaction is first order in B and the rate constant is 8.50 X 10^-1 What is the value of the equilibrium constant for the reaction A (equilibrium) B at this temperature
A 4.05 g sample of a compound containing only C, H, and O was burned completely. The only combustion products were 10.942 g CO2 and 4.476 g H2O. What is the empirical formula of the compound.
Write the net ionic equation describing the oxidation of mercury to HgO by O2 in a basic aqueous solution.
The most stable form of bromine under standard conditions is as the diatomic molecule
at 25 C and 1.0 atm, .25 g of a gas dissolves in 1.00L of water. what mass of the gas dissolves in 1.00L of water at 25C and 3.0 atm
zinc reacts with aqueous sulfuric acid to form hydrogen gaszn s h2so4 aq znso4 aq h2 gin an experiment 201 ml of wet
combining 0.228 mol of FecO3 with excess carbon produced 13.2g of Fe. Fe2O3 + 3C -> 2Fe + 3CO what is the actual yield of iron inn moles? what is the theoretical yield of iron in moles? what is the percent yield
How many moles of oxygen are produced at room temperature given the following: Volume of oxygen at room temp = 48.3 mL (0.0483 L) Room temp. = 295.35K Barometric pressure = 775.7 mm Hg (1.0207 atm) Mass of oxygen produced at room temp = 0.0532g
In the preparation of amides, acid chlorides or anhydrides may be used to react with the selected amine. It is known that acid chlorides are more reactive than the corresponding anhydrides in this type of nucleophilic acyl substitution reaction.
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