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From an as a stock solution of 0.0169M six diluted solutions were made to these percentages- 0.4%, 1%, 2%, 4%, 6% and 10%. Explain what were the concentration levels in M of these solutions?
Calculate the weight of water that could be removed from a wet organic phase using 50.0mg of magnesium sulfate. The hydrate form of magnesium sulfate consists of MgSO4.7H20
A sample of gas occupies a volume of 459 mL at 0.736 atm and 29 degrees Celsius. Calculate the volume of the gas if its pressure is changed to 0.957 atm while its temperature is held constant.
if you mixed 100 ml of 0.1M KI with 100ml of 0.1M K2S2O8. How will you calculate the diluted (or "new") concentrations of them
The hemoglobin of blood, a protein, is known to contain 0.335% iron by mass, Structural evidence indicates that there are four atoms of iron per molecule
Calculate the pH of the solution that results from each of the following mixtures.160.0 mL of .27 M HF with 220 mL of .32 NaF
an unknown sample of n2 gave a current of 2.36microa in an electrochemical analysis. when 0.500 ml of solution
1.9 In the spectrum of atomic hydrogen, several lines are generally classi?ed together as belonging to a series (for example, Balmer series, Lyman series, Paschen series), as shown in Fig. 1.28. What is common to the lines within a series that mak..
What conclusions can you draw about the mobility of metals in acidic environments?
What is the freezing point (°C) of a solution prepared by dissolving 11.3 g ofCa(NO3)2 (formula weight= 164 g/mol) in 115 g of water? Assume that i=3.00 for Ca(NO3)2 and the molal freezing point depression constant for water is1.86°C/m.
Calculate the amount of heat (cal) necessary to convert 34g of ice at -3oC into liquid water at 25oC.
One mole of carbon-12 atoms is equal to a mass of exactly how many grams of carbon-12 atoms?
State the conditions under which all derivatives of benzene like chlorobenzene, benzoyl chloride and chlorophenyl methane would react with sodium hydroxide.
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