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This is a question on my chemistry lab pertaining to analyzing how much Mg is actually in a capsule.
How would your results have changed (qualitatively, but explain your reasoning!) id the FAAS standards were all diluted from a stock solution that was reported to be 200ppm but was really only 185?
The concentration of ammonium ion in the solution of the salt called ferrous ammonium sulfate
The configuration for the ground state of iridium is [Xe]4f145d76s2. What are the group and period for this element?
calculate the molecular weight of urea 180 grams of whichdissolve in 1500 grams of water to produce a solution having
solution contains fecl3 0.015 m and naoh 0.010 m. solution of fecl3aq 3naohaq -gt feoh3s 3naclaq gives precipitate
how long it will take the same ammount of gaseous I2 to effuse from the same container under identical conditions.
What is the pH halfway to the equivalence point for the titration of 0.20 M CH3NH2 with 0.20 M HCl? (Kb of CH3NH2 = 4.4 x 10-4)
A solution containing .2g of an unknown substance in 2.5 g of cyclohexane is found to freeze at 5.1 C what is the molar mass of the unknown substance
How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 C to 88.5 C?
an unknown hydrocarbon a with formula c6h12 reacts with 1 molar equivalent ofh2 over palladiumcatalyst. hydrocarbon a
Suppose 8.26 g of solid Mg(OH)2 is added to 36.1 mL of 0.488 M H2SO4 solution. What will the concentration of Mg2+ be when all of the acid has been neutralized. How many grams of Mg(OH)2 will not have dissolved.
A weather balloon at Earth's surface has a volume of 4 L at 285 K and 791 mmHg. If the balloon is released and the volume reaches 4.19 L at 711 mmHg.
The value of ?Ho for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 25.0 g of Na2O2 with water is ________kJ. 2Na2O2 (s) + 2 H2O (l) -> 4NaOH + O2 (g)
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