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A shipment of protein bars has arrived from Orkasia. These bars are labeled as containing 100% of the daily protein requirement for an average woman, which is 65 g of protein/day. The doctor Sue is working for is concerned that the bars do not contain the stated amount of protein, so she has Sue test the bars. Each bar weighs 85.0 g. Sue tests several 5 g samples of the bars and finds that each contain, on average, 76% protein. Do the bars fail to provide the protein promised? Support your answer with calculations.
A 14.0g sample of an unknown gas occupies 10.8L at a temperature of 30 degrees celsius and a pressure of 750mmHg. What is the molar mass of the gas
The volume of a syringe is 0.5 mL and the pressure is 3 atm, when the plunger is at the bottom of the syringe. The syringe is then sealed and forced to the 10 mL mark. What is the pressure inside of the syringe?
Cabernet Sauvignon with a pH of 3.64. How many times more acidic is the Sauvignon Blanc? Please show work thoroughly and answer both questions.
Calculate the mass deficiency in amu, binding energy in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291amu
A 50.00-mL solution containing NaBr (FW=102.894g/mol) was treated with excess AgNO3 to precipitate 0.2146 g of AgBr (FW= 187.772g/mol). What was the molarity of NaBr in the solution
What are the relative percentages of hydrogen cyanide (HCN) and cyanide ion in a dilute aqueous solution at pH
The second order reaction for the breakdown of nitric oxide to its elements has the rate constants of 0.0796 L/mol-s at 737 C and 0.0815 L/mol-s at 947 C. What is the activation energy of this reaction?
A tank is first evacuated, and then connected to a 75.0 L cylinder of compressed nitrogen gas. The gas pressure in the cylinder, originally at 15.8 atm, falls to 1.05 atm without a change in temperature. What is the volume of the tank?
Draw appropriate Lewis structure and VSEPR structure for oxalate anion. What is the O-C-O bond angle? What is the C-C-O bond angle? What is the hybridization of each carbon? On which atoms does the negative charge reside? Draw all resonance struct..
Write the chemical equation describing solubility equilibrium and the solubility product constant expression for Cu(IO3)2(s) and Ba3(PO4)2(s)
What is the hydronium ion concentration of a 0.500 M acetic acid solution with Ka = 1.8 x 10-5. The equation for the dissociation of acetic acid is: CH3CO2H(aq) + H2O(l) H3O+(aq) + CH3CO2-(aq)
which one of the following is chiral? a. 1,1-Dibromopropane b. 1,2-Dibromopropane c. 1,3-Dibromopropane d. 2,2-Dibromopropane e. 2-Bromo-2-chloropropane
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