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A 67.9 g mixture of the compounds sodium sulfide and potassium bromide is 40.9 % by mass sodium sulfide. The compound sodium sulfide is 41.1 % by mass sulfur. Calculate the mass (g) of sodium in the mixture.
4nh3 5o2 yields 4no 6h2ogiven 1.50g of nh3 reacts with 2.75g of o2 which is the limiting reactant? how many grams of
How is it possible for temperatures below the ice to be actually warmer than surface temperatures
The calculation for the % yield of the product (dibenzalacetone). Also indicate which reagent is the limiting reagent. Molecular weight are as followed Benzaldehyde=106.13g/mol, acetone 58.o8g/mol. dibenzalacetone 234.30g/mol
Oleic acid has one double bond and a molar mass of 282.45 g/mol. If iodine number is equal to the number of grams of Iodine (1) that combines with 100 grams of a fat or oil substance; calculte the iodine number for Oleic acid.
Using the quantities 3 grams of salicylic acid and 6ml of acetic anhydride noted in the macro scale procedure and any other necessary data, calculate the theoretical yield in moles and grams of aspirin.
At standard temperature and pressure (0 and 1.00 ), 1.00 of an ideal gas occupies a volume of 22.4 . What volume would the same amount of gas occupy at the same pressure and 30
how many grams of benzene are needed in 46.3 grams NaBr (103 g/ mol)? the freezing point of solution to 3.94 degree C?
Which corresponds to approximately 2.65 * 104 mol of electrons at the voltage of a fuel cell and calculate how much heat energy is absorbed?
The butylammonium ion, C4H9NH3^(+), has a Ka of 2.3x10^(-11) C4H9NH3^(+) + H2O > H3O^(+) + C4H9NH2 A. Calculate Kb for the conjugate base, C4H9NH2 B. What is the pH of a 0.015M solution of butylammonium chloride
There are four peaks in the H nmr but they do not match the calculated ppm values. Which hydrogens would match the peaks for m-trifluoromethyl benzoic acid
Cobalt-60 is a beta emitter with a half life of 5.3 years. Approximately what fraction of cobalt-60 atoms will remain in a particular sample after 12.0 years?
write a balanced chemical equation for the reduction of dl-camphor by NaBH4. Assume all H of NaBH4 are used in the reduction.
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