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1. my doctor only measures medicine in scruples. (old unit of mass) If he prescribed 0.382 scruples of medicine, how many milligrams should I ask for at the pharmacy? 1ounce=437.5 grains 1 scruple=20 grains 1ounce=28.35 2. A beverage manufacturer is looking to purchase a new mixing tank to make their soda in. If they need to refill exactly 750,000 bottles each week, and each bottle holds approximately 2.00 liters, how many gallons does the new tank need to be able to hold? report answer in scientific notation. 1 gallon= 3.785 3. A cylinder is filled with gas to a pressure of 4.78x10^7 Pascal, how many psi would this be? Report answer in scientific notation. 1 ATM=14.696 psi 1ATM=760 torr 1 Pascal =0.0075 torr 4. A meteor falls into the earth's atmosphere traveling at 393 meters per second(m/s). What is its speed in miles per hour (mi/h) use the following conversions. (hint: remember that per means division, so m/s means meter divided by seconds) 1mi= 1.6093 km 1km=1000m 1hr=60 mins 1min=60 sec 5. The current olympics record for women's 15000.0 meter run is 3.841 minutes. How many miles per hour was this person running? 1mi=1.6093km 1km=1000m 1hr=60mins 6. A 1539cm^3 sample of an unknown substance is found to have a mass of 1.21 x 10^4 grams. Calculate the density for the substance. 7. Calculate the density for an object having a mass of 923.6 grams, a length of 14.23 cm, a width of 8.76 cm, and a thickness of 3.14cm. 8. A titanium machine part has a mass of 87.2Kg. Calculate the volume in millimeters of this part, if the density of titanium is 4.506 g/ml. report your answer in scientific notation to appropriate significant figures. (hint: cannot use kilograms directly)
Based on the data for step 2 of the experiment, predict what would happen if you performed step 3 of the experiment (how many sets of three drops of each of the HCl and NaOH would be needed until the buffering capacity is lost for the two solution..
Gas phase irridation of 2-pentanone produces acetone and ethylene in about 90% yield along with 10% 1-methylcyclobutanone. Accoutnt for the formation of these three products
Organic Reactions - Cyclopentadiene, Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures?
What is the de Broglie wavelength (in meters) of a mosquito weighing 1.50 mg and flying at 1.34 m/s?
Find the equilibrium pH of a 10^-3 M NaCN solution by using graphical methods, try to find the equilibrium pH with the charge balance and separately with the proton condition.
What is the largest alkane (number of carbons) that can be named not exceeding "decane" as a parent? Where is the primary How many What family. I.e. what Where and what carbons? Is the primary functional group?
How much energy is released during the complete combustion of 433 grams of cyclopropane
If you dilute 21.0 mL of the stock solution to a final volume of 0.500 L, what will be the concentration of the diluted solution?
Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid
For the synthesis of ammonia given below, calculate the free energy change, delta G, from the elements under standard conditions at 25 degrees celcius. N2 (g) + H2(g) -> NH3(g)
Iron (III) oxide reacts with carbon monoxide to form elemental iron and carbon dioxide. How many grams of CO are required to react with 2.78 grams of Fe2O3?
If the enthalpy of combustion of the compound is -2978.0 kJ/mol and the temperature of the calorimeter rises from 25.44 C to 27.7 C, how many moles of the compound were oxidized?
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