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Write all pertinent computations to justify your final answer
HEMOGLOBIN, C2952H4564N812O832S8Fe4 , is the oxygen carrier in the blood.
Calculate:
A. the MW of the compound (express answer in
scientific notation)
B. the number of molecules present in 50.0 g
Hemoglobin
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- Carbon dioxide emissions associated with a one-night stay in a hotel room are calculated at 28.98 kg of CO2 per room day for an average hotel. The 250 rooms of your hotel are all occupied for two days during a college football game. How much CO2 did the guests and hotel release into the atmosphere? Round your answer to the nearest whole number. kgsAcetaminophen, a popular drug taken as pain reliever and fever reducer, is produced together with acetic acid from the reaction of 3.05 g 4-aminophenol and 4.1 ml of acetic anhydride. Acetaminophen was extracted at 60% yield. Density of acetic anhydride at 20 C, 1.08 g/ml. Calculate the actual no. of grams of acetaminophen produced. [Determine L.R., E.R.]Consider a blend of mass 5g formed from 2.2 g of C12H24 and 2.8g of C998H1000 paraffin's:, What are Mn and Mw of the blend?
- The manufacture of aluminium includes the production of cryolite (Na3AlF) from the following reaction 6HF (g) + 3NaAlO2 (s) - > Na3AlF6 (s) + 3H2O (l) + Al2O3 (s) How much HF (hydrogen sulfide) is required to produce 2.50kg of Na3AlF6 Provide your answer/work in dimensional analysis formatCompute for the amount(in grams) of Sodium bicarbonate that reacted with 5.6 grams of tartaric acid. 2NaHCO3 (84g/mol) + C4H6O6 (150g/n) -> 2HO2 + 2CO2 + Na2C4H4O6 a 20.0 grams b 1.64 grams c 6.27 grams d 5.15 gramsSuppose some cells are assembling a certain protein made of 23 amino acids. Calculate The MAXIMUM MOLES of this protein that can be assembled if250 mg Of glucose are available for combustion Please check work and don't round when doing the math.
- Calculate the number of molecules or formula units in each of the following amounts: 72.5 mol of toluene, C6H5CH3 show the work and stepsa hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight in the hydrated CuSO4 salt. SHOW WORK TO RECEIVE FULL CREDIT mass of empty dish 43.571 gmass of dish + hydrated salt 44.326 gmass of dish + dehydrated salt 44.054 g 4. Using the data found in question number 3, determine the empirical formula for the hydrated CuSO4salt. What is the chemical name of this dehydrated salt? 5. Suppose that after your second heating, you were impatient and did not wait until your porcelain evaporating dish to cool. Instead, you weighed it while it was still hot. How would this specifically affect the calculated percentage of water in the compound?In the synthesis of benzoic acid, 3.5 mL of toluene were used and mixed with potassium permanganate solution. In making the potassium permanganate solution, 7 grams of the powder were dissolved in 150 mL of water. The resulting crystals were purified and the yield 1.53 grams. Identify the limiting reagent and compute for the number of moles that it consumed. What is the theoretical yield? What is the percentage yield? MW toluene = 94.14, density=0.87 g/mL , MW KMnO4 = 158, density = 2.7 g/mL , MW Benzoic acid = 122, density = 1.27 g/mL
- A sample of an industrial waste water is analyzed and found to contain 16.5ppb Fe2+. How many grams of iron could be recovered from 1.81×103 kg of this waste water? Answer:_______ grams FeShow work using conversion factors Answer key: #37d 1.250 moles CO2 #37e 4.92 mole HCl #37f 7.1422 moles HCl ( fixed 10/14/2020) #37g 143 g CO2For the following table fill in the missing values and calculate the theoretical yield. A + 2B à C moles 0.00242 0.00242 ?_________ MW ?_________ 98.06 164.16 g ?_________ ?__0.00002467_______ ?_________ mL 0.20 d(g/mL) 0.80