Which quantum number determines the total number of angular nodes in any given O mg, the spin quantum number O , the angular momentum quantum number O m, the magneitc quantum number O n, the principle quantum number

You may mark all of the following directly on this one structure if you make a color coded key that is EASY for me to follow: Salpha carbons color: 8chiral carbons color: 8anomeric carbons color: Speptide bonds: 1. 2. 3. 4. Draw structure: Explanations for why any of the above NOT present: 5. 10Does your structure have the ability to form a (circle): hemiacetal or acetal or neither if methanol is added in the presence of heat and acid? Draw the product.

Which piece of equipment would you use to measure 7.10 mL of CuSO4 (aq)?

3b. An impure sample of ammonium dichromate [ (NH4)2Cr207] was analyzed to determine its purity [ %(m/m) of ammonium dichromate]. a. A 1.4325 gram sample of the impure (NH4)2Cr207 was heated and decomposed in the following (unbalanced equation) reaction: • Balance the chemical equation: [ Select ] (NH4)2Cr2O7(s) [ Select ] N2(g) [ Select ] H20(L) + + [ Select ] | Cr2O3(s) b. The decomposition of the 1.4325 g of the impure sample produces 0.1252 liters of nitrogen gas (N2(g) that were collected at a temperature of 24.7°C and a pressure of 1.032 atmospheres: o Calculate the number of moles of nitrogen (N2(g)) collected in this reaction: [ Select ] mol N2 • Calculate the mass of the ammonium dichromate [ (NH4)2Cr20, ] in the sample (1.4325 g): [ Select ] g (NH4)2Cr2O7 o Calculate the %(m/m) of the ammonium dichromate in the impure sample: [ Select ] %(m/m) (NH4)2Cr2O7

The dosage of quinine when a 145−lb adult takes a 200.−mg tablet is equivalent to _____ μg drug per kg of body weight.

QUESTION 4 Rank the alkenes show in order of stability with 1 being most stable and 3 being least stable. ch8-d1-q3+4+5(2).jpg VA ✓ B

This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide), which is mined from the earth. Zinc is a reactant in the equation, and it is needed in order to extract the silver from the potassium argentocyanide ore. 2AgK(CN)2(aq)+Zn(s)→2Ag⁡(s)+Zn(CN)2(aq)+2KCN(aq)    How many atoms of pure zinc (Zn) are needed in the production process to create a pure silver coin of mass 31 grams?

Archimedes tells us the lifting power of a balloon (how much mass it can lift) is equal to the difference between the mass of the balloon and the mass of the air it displaces. That is, if the balloon occupies the same volume as 10 kg of air, but the balloon only weighs 2 kg, then the gas density kg 0.090 3 m H, balloon can lift 8 kg. Airships have sometimes been filled with hydrogen (H,), but hydrogen is very flammable, and kg 0.18 Не m after the Hindenburg caught fire and crashed in 1937 with serious loss of life airships have nearly always been filled with helium (He) instead. kg 1.23 3 m' air Suppose a new airship Star of Balogna will have the shape of a cylinder 100. m long, with a radius of 15.0 m, and will weigh 9400. kg without any gas inside it. Suppose also the average passenger weighs 81 kg. Calculate how many passengers the Balogna could carry if it were filled with hydrogen, and also if it were filled with helium. Passengers with H,: Passengers with He:

A 15000 L tailings pond at a mine site was analyzed for cadmium contamination. First, a 25.0 mL sample of water was removed from the pond. Then the solution was evaporated to dryness, and 56.1 mg of cadmium was recovered (the identity of the metal was confirmed through other methods). Assuming the water is homogeneously distributed throughout the pond, what is the concentration of cadmium in the tailings pond?