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Problem- 1) Describe how you would prepare 100mL of a single solution containing all of the following reagents at the designated concentrations- 0.1M NaCl, 0.05M glucose, 5% wt/vol alanine, and 1mg/mL urea.
2. How would you prepare 1 L of a 1 M ethanol solution in water? You do not have an anaylytical balance available. Only a 1 L volumetric flask and a 100 mL graduated cylinder. The density of ethanol is 0.789 g/mL.
As much detail as feasible is really appreciated
Problem- An 66.39 g sample of aluminum is placed on a 42.56 g sample of copper initially at 124.96oC. If the heat is only transferred between the metals (with no loss to the surroundings) and the final temperature of both metals is 44.29oC, what i..
An electrochemical cell is constructed with a zinc metal anode in contact with a 0.052 M solution of zinc(II) nitrate and a silver cathode in contact with a 0.0042 M solution of silver(I) nitrate. What is the emf of this cell at 5°C
how much heat in kilojoules is evolved or absorbed in each of the following reactions?a burning of 15.5g of
How many moles of naphthalene are required to react stoichiometrically with 1.24 moles of 2-bromo-2-methylpropane to produce 1.24 moles
The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.
The millipede ejects the compound shown below to protect itself from its enemies. Identify the functional group circled.
It is the peak of WWI and German scientist Haber is making ammonia for munitions production. This is initially a slow process but the laboratory has enough money for top of the line equipment. How could this scientist speed up the process
for the reaction fe2o3s 3 cog ? 2 fes 3 co2g the enthalpy change is - 6.60 kcal. on the basis of this information
the enzyme carbonic anhydrase catalyzes the reactionco2gh2olhco3-aqhaqin water without the enzyme the reaction proceeds
how do you go about calculating the average deviation step by step using the following numbersx-1 26.0242gx-2
Calculate the radius of a Au (gold) atom if Au atom has a face-centered unit cell ? it is given that its density = 19.32 g/cm 3 .?
The following solutions were mixed together: 50.0mL of a 0.761M FeSO4 and 20.0mL of a 1.05M K2Cr2O7 (in dilute sulfuric acid). What is the molar concentration of Cr+3 ions in the resulting solution
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