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A: Dear student I have given answer to your question in the image format.
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- In a river with a constant flow rate, the factory releases wastewater containing NaCl at a concentration of 200 mmol / L to the river at 20.0 L / s. The Na+ and Cl- concentrations at the downstream observation point were 1.00 mmol / L and 0.800 mmol / L, respectively. What is the river flow Q and Cl- concentration before the inflow of drainage? The river originally contains 0.500 mmol / L of Na+.-If ethanol (S.G. = 0.790) were used rather than water in measuring the density of the irregular objects, how would that have affected the result? Explain. -When you were measuring the volume of the irregular solid you were told to stir to eliminate bubbles. If the bubbles were not eliminated, how would that affect the density? Explain. -Suppose the density of 65.0 mL of some liquid was found to be 0.748 g/mL. What would be the specific gravity of 45.0 mL of this liquid?The molar volumes of pure acetone and pure chloroform at room temperature are 72.0 cm^3 and 81.0 cm^3, respectively. The volume of a liquid mixture containing 0.6 moles of acetone and 0.5 moles of chloroform is
- the net force on a vehicle that is accelerating at a rate of 1.5m/s2 is 1,800 newton’s . what is the mass of the vehicle to the nearest kilogramThe density of air is 1.29 grams/L. What is the weight, in kilograms, of a cubic meter (1.00m^3) of air?Torricelli, who invented the barometer, used mercury inits construction because mercury has a very high density,which makes it possible to make a more compact barometerthan one based on a less dense fluid. Calculate the densityof mercury using the observation that the column of mercury is 760 mm high when the atmospheric pressure is1.01 x 105 Pa. Assume the tube containing the mercury isa cylinder with a constant cross-sectional area.
- To identify a liquid substance, a student determined itsdensity. Using a graduated cylinder, she measured out a 45-mLsample of the substance. She then measured the mass of thesample, finding that it weighed 38.5 g. She knew that the substancehad to be either isopropyl alcohol 1density 0.785 g>mL2or toluene 1density 0.866 g>mL2. What are the calculated densityand the probable identity of the substance?Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H2O. It is the primary material in sheet rock, used to make walls in houses. If you heat 21.05 g of the hydrate and drive off the water, what is the weight of the anhydrous salt remaining? Report your response to the proper degree of certainty and include the correct unit symbol (i.e., g, mL, km, etc.).High fructose corn syrup is a sweetener found in everyday food items especially carbonated beverages. It is derived from the "fruit" of corn using a bioprocess that degrades corn starch into its constituent sugars. Given the quantity of corn syrup (d = 1.4 kg L^-1) needed for many industries. It should be no surprise that this product is often transported from place to place in tank cars (via railway) where the typical transport mass is 2.290 x 10^5lbs. In the space provided below, calculated the diameter in (meters) of such a tank car's 11.12m long-cylindrical transport container. Recall that 1 gal =3.785 L, kg= 2.205lbs, and 1cm^3 =exactly 1mL
- Why do you suppose Km values are so frequently standardized and published, drawing attention to the value Vmax/2, rather than Vmax itself?The density of air at ordinary atmospheric pressure and 25 ∘C is 1.19 g/L. What is the mass, in kilograms, of the air in a room that measures 13.5 × 17.5 × 6.0 ft?A partially filled one-gallon [gal] pitcher, that has a mass of 0.35 kilograms [kg] when empty, is sitting on a kitchen counter. Assume the total mass of the pitcher and its contents is 2 kilograms [kg]. The pitcher contains a liquid that has a molecular weight of 19.5 grams per mole [(g)/(mol)] and a molarity of 57 moles per liter [(mol)/(L)]. (a) Determine the volume of the liquid in the pitcher in units of liters [L]. (b) Determine the specific gravity of the liquid in the pitcher.