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The atomic mass of element X is 33.42 amu. A 15.05-g sample of X combines with 79.32 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
Hind +h2o ind- + h3o+ When a few drops of methyl red are added to 1.0M HCL what is the color of the resulting solution
You have 1005.3 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of solvent are in the solution?
During a lab experiment, we were to determine the relative level of saturation by adding, drop by drop, a solution of bromine in cyclohexane to oil and a fat, individually. However, the color that is supposed to be retained due to unreacted bromin..
The "roasting" of 48.7 g of ZnS at constant pressure gives off 220. kJ of heat. Calculate the DH for this reaction. 2ZnS(s) + 3O2(g) ® 2ZnO(s) + 2SO2(g)
how many moles of NaCl would be made by combining 20,000 moles of Na with 2 moles of Cl
What are the roots for x in this quadratic equation? 2 x2 - 7 x + 0.5 = 0 The larger root is (use 3 significant figs) The smaller root is (use 3 significant figs)
In either of the simple distillation experiments, can you account for the boiling point of your product in terms of the known boiling points of the pure components of your mixture?
A 0.115 M solution of a weak acid (HA) has a PH of 3.33. Calculate the acid ionization constant (Ka) for the acid.
From your previous knowledge of the tendencies of certain metals to rust or tarnish, and from your reading in this experiment, select at least three metals from the following list which are quite active, three which are moderately active,
where it is burned with 12% excess air. Calculate the required flow rate of air in SCMH(standard cubic meters per hour).
An automobile engine requires a carburetor or fuel inector to mix the fuel with air. The fuel and air must be mixed in a particlar ratio to achieve maximum efficiency in the combustion of the fuel.
Plan and Design Lab: To Determine the water of crystallization in hydrated copper (2) sulphate. Hence determine the formula CuSO4.xH2O.
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