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In the first part of your ternary mixture seperation experation, the mass of the beaker was 35.48 grams and the mass of the beaker and ternary mixture was 37.08 grams. After sublimation the mass of the beaker, saltm and sand were 36.93 grams. Calculate the percentage of naphthalene that was in the ternary mixture. Express your answer in percentage to the nearest tenth of a percent.i.e 0.1%
5g of Oxygen combines with 37.20g of Uranium to form Uranium Oxide: What percentage (by mass) of this compound is O and U
A solution of calcium ions contains 7 meq/250. cm3 of calcium ion. How many moles of calcium ion does this solution contain
The specific heat capacity of silver is 0.240 J/(g x degrees C). Calculate the energy (in kJ) required to raise the temperature of 263 g Ag from 273K to 278 K.
How many chemicaly different hydrogens are in: 4'-Aminoacetophenone; 3'-aminoacetophenone; benzoic acid; 3-toluic acid;1,4-dimethoxybenzene; and fluorenone? alson how would you do a predicted chemical shift and splitting pattern for those
When C2H5OH +3O2 produces 2CO2 + 3H2O,determine how many grams of oxygen gas are essential for complete combustion of 421grams of ethanol ?
If 10.0 mL of 0.00200 M KNCS is mixed with a very large excess of Fe(NO3)3, how many moles of FeNCS2+ product should form
if the aluminum block is initially at 25circ c what is the final temperature of the block after the evaporation of the
find the mass of sodium required to profuce 5.68 l of hydrogen gas at stp from the reaction described bu the following
if the empty cylinder has the mass of 94.2g and the cylinder with water has the mass of 138.7 what is the mass of water
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed.
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
Consider a container sealed with a small opening. A mixture of several gases are added to the container. Assuming the gases do not react, indicate the order that the gases escape out of the container
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