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Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid? Drag the appropriate compounds to their respective bins. CO, NO, LiCl, HBr, BaS, RbCl, SrO, LiBr
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
A mixture of NaCl and NaBr has a mass of 2.00 and is found to contain 0.78 of Na. What is the Mass of NaBr in the mixture.
the mass of component A is 2.47 g, component B is 1.12 g, and component C is 0.654 g; what is the percent composition of component A?
What is the velocity of a singly charged benzene ion (m = 78 Da) after acceleration? e = 1.60 x 10^-19 C
metal sample weighing 37.6 grams which has been heated to a temperature of 100 degree c in boiling water, was placed in 48.6 grams of water in a calorimeter, the inital temperature of the water was 25.2c at equilbrium the temperature of the water ..
Extracting aluminium uses a current of 25000 ampere.What is the time taken to produce 10kg of aluminium from Al2O3(liquid
The molar absorptivities for methyl red in its acid form are 44640 M^-1cm^-1 @ 524 nm and 3860 M^-1cm^-1 @ 425nm and for methyl red in its base form are 740 M^-1cm^-1 @ 524nm and 18530 M^-1cm^-1 @ 425nm
a sample of an ethanol-water solution has a volume of 54.2 cm3 and a mass of 49.6g. what is the percentage of ethanol in the solution?
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
A 6.11g sample of Cu-?Zn alloy reacts with excess aqueous HCl producing 1.26 L of H2(g) at 22.0 ?C and 728 torr. Since only the Zn portion of the alloy reacts, calculate the percent Cu in the alloy.
Write the balanced molecular, ionic and net ionic equations for the reaction between magnesium and cobalt(II) sulfate. (b) What is oxidized and what is reduced in the reaction?
A solution of 62.4 g of insulin in enough water to make 1.000 L of solution has an osmotic pressure of 0.305 atm at 25°C. Based on these data, what is the molar mass of insulin?
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