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Which is the limiting reactant when 15.0 g of iron (III) sulfate reacts with an equal mass of sodium hydroxide
insoluble magnesium carbonate forms when two suitable solutions are mixed together. describe how to obtain a dry sample of magnesium carbonate from the reaction mixture
1. An 760 g aluminum block cools from 95˚C to 50.˚C. Given that the specific heat capacity of aluminum is 0.900 J/g.˚C, calculate the heat released.
(thermochemistry)
1. The specific heat capacity of zinc is 0.388 J/g.˚C. Calculate the initial temperature of zinc block of mass 38g if the amount of heat supplied to it was 220 J and the maximum temperature reached by the zinc block was 55˚C.
what is the volume of 6.9 mol oxygen gas at 233 K and a pressure of 4.0 atm?
The reading on a graduated glass tube filled with melted gallium is 120.50 cm at 29.8 ℃. The local acceleration of gravity is 9.784 m/s. To what pressure does this height of liquid gallium correspond? Express answer in kilo-Pascals (kPa). Density of mercury at melting point is 6.095 g/cm^3.
Compare the mechanisms for the following substitution and addition reactions of benzene:
o the Friedel-Crafts reaction
o the sulfonation of benzene
o the chlorination of benzene
o the hydrogenation benzene
You will need to illustrate and explain the reaction mechanism for each one, as well as the similarities and differences that exist between them.
Could you list some similarities and differences for the mechanisms please?
Draw the cis- and trans- forms of 1, 3-dimethylcyclobutane. Which one of these
(i) will be polar in nature?
(ii) has higher melting point?
Explain your answer giving reasons.
100 kg of a sample of argentiferous lead containing 0.5% Ag is melted and then allowed to cool.If eutatic contains 2.6%Ag,1) what mass of eutectic will be formed and 2) what mass of lead will seperate out?
On dissolving 7.258 gm of HCN. (Ka=7.2×10'-10) in water. The solution becomes 100ml. So the degree of ionization of acid equals ?
#339914 on Dec 2023