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If a given element has a mass that is 5.81 times that oc 12 C how do I figure out the mass and the element? Do I just times 5.81 times 12.0107? Therefore it is Ga
what is the pressure of dry H2 in mmHg. and in atm. Assuming the ideal gas behavior, how many moles of H2 gas were collected
10 mL of 0.1 M NaOH is added to 50 mL of 0.1 M of the hypothetical acid HA. write the chemical equation and calculate the molarity of NaA and HA in the final solution.
a student produces 2.73 g of a compound. She calculates the theoretical yield as 3.40 g. What is the percent yield
Would the mass of the precipate collected be more, unchanged, or less if the residue was washed with hot distilled, deionized water instead
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
Chlorination via radical halogenation is a very unselective process and can lead to the formation of all three of the below products. Estimate the relative percentages of each product that will be formed using this means of halogenation. Presume t..
Aliphatic esters have carbonyl stretches that absorb around 1750 - 1735 cm-1. Unstrained aliphatic ketones have carbonyl stretches that absorb around 1715 cm-1. Explain this observation.
How do the two graphs compare if the frequency factor of the second reaction is higher than the frequency factor of the first reaction but the two reactions have the same activation energy?
Adding ammonia to a solution containing copper ions... Answer can be multiple removes the copper from the solution by forming a precipitate. increases the copper concentration by shifting the reaction toward the reactants.
Do you use the same type of glassware when making solutions of varying molarity? Should you use a volumetric pipette or flask
You have measured the absorbance for a vitamin sample to be 1.2 at a wavelength of 264. Can you use this reading to determine the INITIAL CONCENTRATION of your vitamin sample?
A solution contains 4.64g KCl in 178 mL of solution. The density of the KCl solution is 1.14 g/mL. What is the molarity,M, for the potassium chloride solution?
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