Describe how to make 500mL 0.435 M HNO3 from a 6.00M HNO3 solution. (Titration Lab)

A 1.198 g sample contains only vitamin C (C6H8O6) and sucralose (C12H19Cl3O8). When the sample is dissolved in water to a total volume of 25.3 mL, the osmotic pressure of the solution is 5.62 atm at 303 K. What is the mass percent of vitamin C and sucralose in the sample?

vitamin C: %

sucralose: %

Give the wavelengths of maximum absorption for each solution as shown in the spectra provided. Use the absorption wavelengths to explain why the [Ni(H2O)6] 2+ solution appears yellow-green but the [Co(H2O)6] 2+ solution appears pink.

[Ni(H2O)6] 2+ maximum absorbance at 720 nm

[Co(H2O)6] 2+ maximum absorbance at 510 nm

Nitrogen is slightly less dense than is a sample of air at the same temperature and pressure. Calculate the density of N2 in g/L, at 1.45 atm at 15 degree Celsius

Propose a detailed sample preparation method for testing total sodium concentration in whole blood by Atomic emission

4a. For the following reaction, 3.96 grams of carbon tetrachloride are mixed with excess methane (CH₄) . The reaction yields 3.67 grams of dichloromethane (CH₂Cl₂) .
methane (CH₄) ( g ) + carbon tetrachloride ( g ) -------> dichloromethane (CH₂Cl₂) ( g )

4b. For the following reaction, 5.03 grams of silver nitrate are mixed with excess copper(II) chloride. The reaction yields 3.02 grams of silver chloride.
silver nitrate (aq) + copper(II) chloride (s) ----------> silver chloride (s) + copper(II) nitrate (aq)

4c. For the following reaction, 5.80 grams of silver nitrate are mixed with excess copper. The reaction yields 2.56 grams of copper(II) nitrate.
silver nitrate (aq) + copper (s) ---------> copper(II) nitrate (aq) + silver (s)

NH₄NO₃(s) <---> N₂O (g) + 2H₂O(g) K = 0.665 at 525K

If a 2L reaction vessel contains 0.65 moles of N₂O (g), 1.2 moles of 2H₂O (g) and 1.3 moles of NH₄NO₃ (s), which of the following statements are correct?

a. The amount of N₂O (g) will increase and K will not change

b. The amount of N₂O (g) will increase and K will get larger

Please explain!!!!!!!!!!!!!!!

If the volume of the container is decreased, where will the equilibrium shift?

An unsaturated fat that is liquid at room temperature, such as olive oil can react in the presence of Pd/C without a hydrogen source to form a solid fat of the same formula. Explain what process besides hydrogenation could be taking place.

3a. For the following reaction, 9.80 grams of carbon monoxide are allowed to react with 10.1 grams of water.
carbon monoxide (g) + water (l) carbon dioxide (g) + hydrogen (g)
What is the maximum amount of carbon dioxide that can be formed? _____ grams
What is the FORMULA for the limiting reagent? _____
What amount of the excess reagent remains after the reaction is complete? _____ grams

3b. For the following reaction, 8.18 grams of nitrogen gas are allowed to react with 5.92 grams of oxygen gas.
nitrogen (g) + oxygen (g) --------> nitrogen monoxide (g)
What is the maximum amount of nitrogen monoxide that can be formed? _____ grams

What amount of the excess reagent remains after the reaction is complete? _____ grams

3c. For the following reaction, 22.1 grams of iron are allowed to react with 46.7 grams of chlorine gas.

iron (s) + chlorine (g) -----> iron(III) chloride (s)

What is the maximum amount of iron(III) chloride that can be formed? _______ grams

What amount of the excess reagent remains after the reaction is complete? _______ grams

50 mL of 0.060 M K₂CrO₄ is mixed with 50 mL of 0.080 M AgNO₃. Calculate the following:

a. The solubility of Ag₂CrO₄ (K_sp = 1.9 X 10^-12) in the solution in moles per liter.

b. The concentrations of the following ions Ag⁺, CrO₄^-2, K⁺, and NO₃^-.

The mass of an iron bolt was 5.4 greater when it was manufactured. After being bolted to an outdoor structure for several months, the mass of the bolt was found to hae increased by 0.2 grams. Given the following balanced equation for the reaction, does the example support the law of conservation of mass? Why or why not?

4Fe +3O2--> 2Fe2O3

Draw the structure of four benzoic acid molecules and as many water molecules as you need to illustrate how the solid state of benzoic acid might look in cold water prior to recrystallization. In a second drawing illustrate what happens if the water is heated to near 100C, where benzoic acid is soluble. In each drawing identify, by name, specific examples of types of intermolecular interactions involved. Based on your drawings explain why benzoic acid is soluble in hot water and not soluble in cold water. Answer the question at the molecular level discussing the specific interactions involved in your drawings.

Find the volume (mL) and the pH of 0.135 M HCl needed to reach the equivalence point(s) in titrations of the following. (You need to find the pH at the equivalence point, not the initial pH of the solution.

(a) 50.8 mL of 0.272 M NH3

(b) 11.8 mL of 1.76 M CH3NH2

(1) What volume of 1-butanol is needed to convert 1.00 gram of benzhydrol to n-butyl benzydryl ether?

(2) Write the mechanism for the acid catalyzed condensation of ethyl alcohol to give diethyl ether. Note: make sure your mechanism has the following three steps (a) protonation (b) SN2 (not SN1) and finally (c) deprotonation.