Chemistry concepts and calculations

2. The U.S. Food and Drug Administration recommends that you consume less than 2

2. The U.S. Food and Drug Administration recommends that you consume less than 2.4g of sodium per day. What mass of sodium chloride (in grams) can you consume and still be within …

2. The above equation is balanced. What is the percent yield of isoamyl acetate,

2. The above equation is balanced. What is the percent yield of isoamyl acetate, if 1.28g of isoamyl alcohol was added to 2.01g acetic acid, and 0.61 g of isoamyl acetate was extr…

2. The boling pointis 78 26 C and the molal bolling point constant is 1.22 Cmola

2. The boling pointis 78 26 C and the molal bolling point constant is 1.22 Cmolal for pure ethanol. (10 points each) A) if a solution with 2.455 g of an unknown solute(non-electro…

2. The coabustion of 1.00 mol of liquid ethanol (CH,CH,OH) at constant pressure

2. The coabustion of 1.00 mol of liquid ethanol (CH,CH,OH) at constant pressure in excess oxygen rekases adkJ od beat per mole of.thanol. What is the ett halpy dang. (in ?) kr bur…

2. The composition of major components in intracellular fluid is listed below in

2. The composition of major components in intracellular fluid is listed below in column 2. Assume that a neutrophil having this intracellular fluid composition is placed in a solu…

2. The concentration of Sr 2+ in seawater is 7.8 ppm (part per million or mg/kg)

2. The concentration of Sr2+ in seawater is 7.8 ppm (part per million or mg/kg). The concentration of SO42- is 2710 ppm. The activity coefficients of Sr2+ and SO42- are 0.230 and …

2. The confirmatory reactions that identity nitrate and nitrite both produce bro

2. The confirmatory reactions that identity nitrate and nitrite both produce brown NO2 gas. What criterion will you use to determine which anion produced the gas? 3. The confirmat…

2. The conversion of fumarate to malate is catalyzed by the enzyme fumarase fuma

2. The conversion of fumarate to malate is catalyzed by the enzyme fumarase fumarase Fumarate H2OMalate The value of AHR is-20 kJ/mol, the value of AH is 41.3 kJ/mol, and the valu…

2. The current prices per kilogram for industrial-grade MgSO, and NHANO, salts a

2. The current prices per kilogram for industrial-grade MgSO, and NHANO, salts are gi below. MgSO4 $140.00/kg NH4NO3 = $100.00 kg HEATER, Inc. wishes to prepare hot and cold packs…

2. The data below summarize the loss of a solute from water due to a chemical re

2. The data below summarize the loss of a solute from water due to a chemical reaction in a batch reactor. Determine whether the data are best fitted by a zero-order, first-order,…

2. The data below was collected and three graphs were plotted to determine the r

2. The data below was collected and three graphs were plotted to determine the rate law for the generic, hypothetical reaction below: (5 pts) Time5 (min) 10 15 20 25 30 35 40 X 0.…

2. The decomposition of N2O4 to form NO2 is a first order reaction. At 10.00 C,

2. The decomposition of N2O4 to form NO2 is a first order reaction. At 10.00 C, the rate constant (k) value was determined to be 4.50 * 10 ^3 / sec with an (Ea) activation energy …

2. The decomposition of hydrogen sulfide occurs via the following reaction: 2H2S

2. The decomposition of hydrogen sulfide occurs via the following reaction: 2H2S(g)2H2(g) S2(9) At a temperature of 1065 C, this reaction does not go to completion. When 1.00 atm …

2. The deflategate: the scandal associated with the 2014 AFC final game between

2. The deflategate: the scandal associated with the 2014 AFC final game between New England Patriots and Indiana Colts. It was alleged that the pressure of the football used by To…

2. The difference in electric potentials across a metallsolution interface is co

2. The difference in electric potentials across a metallsolution interface is commonly referred to as an electrode potentials Write the potential in the galvanic series for seawat…

2. The electron dot structure for AsCl 3 molecule shows A) a total of 84 electro

2. The electron dot structure for AsCl3molecule shows A) a total of 84 electron dots B) three single bonds and 10 lone pairs C) two single bonds, one double bond, and 9 lone pairs…

2. The elementary liquid-phase reaction A + B (reversible) C is to be carried ou

2. The elementary liquid-phase reaction A + B (reversible) C is to be carried out adiabatically in a set of tubular reactors packed with a resin catalyst and arranged in series. T…

2. The empirical formula for the Brilliant Blue dye is CayHyN,O,S,Na, and the fo

2. The empirical formula for the Brilliant Blue dye is CayHyN,O,S,Na, and the formula weight is 792.86 g/mol. How would you prepare a 525 × 10 M solution of Brilliant Blue dye? Ho…

2. The enzyme PFK- 1 catalyzes the 3d step in the glycolytic pathway (as shown b

2. The enzyme PFK- 1 catalyzes the 3d step in the glycolytic pathway (as shown below) and is known to be an allosteric protein with multiple regulatory sites. Shown below is a gra…

2. The enzyme PFK- 1 catalyzes the 3d step in the glycolytic pathway (as shown b

2. The enzyme PFK- 1 catalyzes the 3d step in the glycolytic pathway (as shown below) and is known to be an allosteric protein with multiple regulatory sites. Shown below is a gra…

2. The fol1owing questions desl with reactions involving the ironI) nitrate solu

2. The fol1owing questions desl with reactions involving the ironI) nitrate solution. 2) Considering the pH of this solution, what two species, besides the Fe(H20) ions and water,…

2. The following data apply to a column for liquid chromatography: Length Flow R

2. The following data apply to a column for liquid chromatography: Length Flow Rate VM 24.7 cm 0.313 mlmin 1.37 ml 0.164 ml A chromatogram of a mixture of species A, B, C, and D y…

2. The following data were obtained for the reaction: 3A +WE+F2 Time (s) ALM 0.1

2. The following data were obtained for the reaction: 3A +WE+F2 Time (s) ALM 0.1000 0.0787 0.0649 0.0481 0.0380 10.0 20.0 40.0 60.0 Plot three graphs (on separate sheets of graph …

2. The following equation represents a commonly used method for producihg oxyeen

2. The following equation represents a commonly used method for producihg oxyeen.- it by the trial-and-error method. 3. When 6.50 g of a red mercury oxide (X) were heated, the com…

2. The following kinetic data were generated for the enzyme SpB1, there is no bi

2. The following kinetic data were generated for the enzyme SpB1, there is no biologically known function for this enzyme Using the information provided below answer questions 2a …

2. The following kinetic data were obtained for an enzyme in the absence of inhi

2. The following kinetic data were obtained for an enzyme in the absence of inhibitor (1), and in the presence of two different inhibitors (2) and (3). Concentration for each inhi…

2. The following kinetic data were obtained for an enzyme in the absence of inhi

2. The following kinetic data were obtained for an enzyme in the absence of inhibitor (1), and in the presence of two different inhibitors (2) and (3). Concentration for each inhi…

2. The following reaction is catalyzed by the enzyme creatine kinase: Creatine +

2. The following reaction is catalyzed by the enzyme creatine kinase: Creatine + ATP Creatine phosphate + ADP Under standard conditions (1 atm, 298 K, pH 7.0, pMg 3.0, and an ioni…

2. The formula of a compound of Tin (Sn) and Oxygen (O) was determined using the

2. The formula of a compound of Tin (Sn) and Oxygen (O) was determined using the following data. A sampl of Sn was weighed into a crucible. The crucible was covered and heated to …

2. The four-reaction copper cycle featured in this experiment is summarized belo

2. The four-reaction copper cycle featured in this experiment is summarized below. Fill in the blanks to show the reagents that will be used in each step. Cu(s) CuCl (aq) Cu(NO,)2…

2. The four-reaction copper cycle featured in this experiment is summarized belo

2. The four-reaction copper cycle featured in this experiment is summarized below. Fill in the blanks to show the reagents that will be used in each step. Cu(s) CuCl (aq) Cu(NO,)2…

2. The geosphere is energized mostly by geothermal heat (heat originating in Ear

2. The geosphere is energized mostly by geothermal heat (heat originating in Earth’s core). Therefore, it is much hotter deep inside Earth than it is near the surface. The geother…

2. The hydrolysis of starch wan stopped when the iodine test no longer gave a bl

2. The hydrolysis of starch wan stopped when the iodine test no longer gave a blue color Does this mean that the starch solution was completely hydrolyzed to ghuconet Explain. 3. …

2. The identification A student knew tion labels fell off three test tubes, each

2. The identification A student knew tion labels fell off three test tubes, each contalning a colories solut fell that one of the the third contained 01% solution, the student tem…

2. The indicator-dilution method is a way to measure the flow rate of blood in t

2. The indicator-dilution method is a way to measure the flow rate of blood in the body. Dye is injected into the pulmonary artery (leaving the heart) and the concentration of the…

2. The launch of the Space Shuttle was assisted by solid propellant rockets cont

2. The launch of the Space Shuttle was assisted by solid propellant rockets containing aluminum as the fuel and ammonium perchlorate, NH4CIO4, as the oxidizer; the two powders wer…

2. The mass percent of chloride ion in a seawater sample is determined by titrat

2. The mass percent of chloride ion in a seawater sample is determined by titrating 25.00 mL of seawater with silver nitrate solution causing the precipitation of AgCl. The end po…

2. The n × n factorization A = LU, where L = (lj) is lower triangular and U = (\

2. The n × n factorization A = LU, where L = (lj) is lower triangular and U = ("ij) is upper triangular, can be computed directly by the following algorithm (provided zero divisio…

2. The narrow scan B(1s) and N(1s) XPS spectra was acquired for a sample of crys

2. The narrow scan B(1s) and N(1s) XPS spectra was acquired for a sample of crystalline BN. The spectra acquired before and after sputtering was performed with an Ar gun are shown…

2. The next four questions refer to the following table of values. molecule b (L

2. The next four questions refer to the following table of values. molecule b (L/mol) a/R 298K (L/mol) (L2bar/mol2 bar/mol 0.05264 0.06702 0.06380 0.06901 0.08445 0.05636 0.05787 …

2. The partial molar volumes of the components of a binary solution may be writt

2. The partial molar volumes of the components of a binary solution may be written as Where n1, n2, M1, and M2, are the number of moles and molecular weights of component one (wat…

2. The percent yield in youl c thermal isomenization Conclusions Give the struct

2. The percent yield in youl c thermal isomenization Conclusions Give the structural formulas of X and Y. Explain, on the basis of your observations, how you reached these conclus…

2. The percentage by mass of oxygen in a compound containing potassium, chlorine

2. The percentage by mass of oxygen in a compound containing potassium, chlorine, and oxygen (K.Ciro) was det experimentally. The technique used is as follows. The solid (KeCloo t…

2. The popular antacid, Milk of Magnesia, is a suspension of magnesium hydroxide

2. The popular antacid, Milk of Magnesia, is a suspension of magnesium hydroxide, Mg(O), In water, m hydroxide, Mg(OH)2. In water, (Eq. 9) (1) What would you observe if you added …

2. The population of a city is 100,000. The weighted equivalent diameter of the

2. The population of a city is 100,000. The weighted equivalent diameter of the sewers is 20 cm. Calculate the total /I per day that may reach the wastewater treatment plant if th…

2. The pressure of a gas willwhen the volume is decreased and will when the abso

2. The pressure of a gas willwhen the volume is decreased and will when the absolute temperature is decreased. 3. If the absolute temperature of a gas is doubled and the pressure …

2. The pressure of a gas willwhen the volume is decreased and will when the abso

2. The pressure of a gas willwhen the volume is decreased and will when the absolute temperature is decreased. 3. If the absolute temperature of a gas is doubled and the pressure …

2. The quantum rules any electron state are that n can be any integer>1, e can b

2. The quantum rules any electron state are that n can be any integer>1, e can be any positive integer less thann, me can be any integer from-1 to +1, and m, has only two possi…

2. The rate kinetics for the following reaction at 298 K are shown below. Answer

2. The rate kinetics for the following reaction at 298 K are shown below. Answer the following questions regarding the reaction: 3A (g) + 2B (g) C (g) Alo (M 1.03 3.91 5.06 3.92 8…

2. The rate of the reaction of nitrogen monoxide with oxygen was measured at 25c

2. The rate of the reaction of nitrogen monoxide with oxygen was measured at 25c starting with various initial concentrations of NO and O2. 2 NO(g) + O2(g) 2 NO2(g) The data colle…