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1)What is the pH of a 0.175 mol/L solution of sodium acetate, CH3COONa, at 25oC?

1)What is the pH of a 0.175 mol/L solution of sodium acetate, CH3COONa, at 25oC? (pKa=4.74 at 25oC for CH3COOH.) Give your answer accurate to two decimal places. 2)How many moles …

1)What is the pH of a buffer prepared by adding 0.405 mol of the weak acid HA to

1)What is the pH of a buffer prepared by adding 0.405 mol of the weak acid HA to 0.608 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×107. Express th…

1)What is the pH of a solution prepared by mixing 20.0ml of 0.6M acetic acid (Ka

1)What is the pH of a solution prepared by mixing 20.0ml of 0.6M acetic acid (Ka=1.8x10^-5) with 10ml of 1.0M NaOH? Report your answer to two decimal places. 2)What is the pH of a…

1)What is the physical relationship between the electric field and the electric

1)What is the physical relationship between the electric field and the electric potential? 2)What is the relationship between the electric field vector and an equipotential line? …

1)What is the present worth of the following series of income & disbursements if

1)What is the present worth of the following series of income & disbursements if the interest rate is 6% per year? YearIncomeExpense 0. 1-3 4-8 12,000-7000 900 600 A) 6863 B) …

1)What is the relationship, if any, between the normal and t-distributions? A)A

1)What is the relationship, if any, between the normal and t-distributions? A)A t-distribution with zero degrees of freedom is a normal B)A t-distribution with one degree of freed…

1)What is the role of the UN peacekeeping forces?in deatail.. 2)__Supposed you w

1)What is the role of the UN peacekeeping forces?in deatail.. 2)__Supposed you were asked to recommend changes in the structure of the UN Security Council. What changes would you …

1)What is the speed of a projectile at landing after a launch from some height ?

1)What is the speed of a projectile at landing after a launch from some height ? A.Exactly the launching speed B.Greater than the launching speed C.Depends on the launching angle …

1)What is the speed of a projectile at landing after a launch from some height ?

1)What is the speed of a projectile at landing after a launch from some height ? A.Exactly the launching speed B.Greater than the launching speed C.Depends on the launching angle …

1)What is the standard state of A in a mixture of 5% A and 95% B (A and B are bo

1)What is the standard state of A in a mixture of 5% A and 95% B (A and B are both volatile liquids)? A)What is the standard state of A in a mixture of 5% A and 95% B (A and B are…

1)What is the time complexity of each of the following functions? Explain your a

1)What is the time complexity of each of the following functions? Explain your answers. int f1(int n) {       int count = 0;       for (int i = n; i > 0; i /= 2)             fo…

1)What is the word? These subunits of the Fo structure in FoF1-ATP Synthetase, c

1)What is the word? These subunits of the Fo structure in FoF1-ATP Synthetase, can vary in number from 10 to 15 and form the main portion of the carousel that transfers protons ac…

1)What is your (you can give your own example) target debt/equity ratio or debt/

1)What is your (you can give your own example) target debt/equity ratio or debt/income ratio? Do you hope to be completely debt-free one day? If modern tax laws were to revert bac…

1)What magnitude of transverse magnetic fieldwould be required for protons of ve

1)What magnitude of transverse magnetic fieldwould be required for protons of velocity 2.0 ×105 m/s to move in acyclotron orbit of radius 20 cm? (Ans: 1.0 x 10^ -2T ) 2) An FM rad…

1)What makes a constraint critical or active? Explain. 2) Jim has used the theor

1)What makes a constraint critical or active? Explain. 2)Jim has used the theory of constraints to maximize the production of his active constraints and match the production rate …

1)What mass of an aqueous 21.4% potassium chloride solution contains 86.4 g of w

1)What mass of an aqueous 21.4% potassium chloride solution contains 86.4 g of water? 2)A concentrated sulfuric acid solution is 96.0% H2SO4 by mass and has a density of 1.84 g/mL…

1)What property of water molecules allows both animals and plants to transport i

1)What property of water molecules allows both animals and plants to transport ions? 2)What is a key difference between fluid transport in plants and in animals (with a closed cir…

1)What three things must a firm be able to do to price-discriminate? Instruction

1)What three things must a firm be able to do to price-discriminate? Instructions: You may select more than one answer. Click the box with a check mark for correct answers and cli…

1)What type of policies encourage resilient communities A) Oil and natural gas b

1)What type of policies encourage resilient communities A) Oil and natural gas b)Agriculture C)Land use D)Economic 2) How is vulnerability linked to sustainable development? A)Sus…

1)What will be the output of this program ? class Test { public static void main

1)What will be the output of this program ? class Test {     public static void main(String args[])     {         String s1="Include";         String s2="Help";         String s3;…

1)What will be the output of this program ? class Test { public static void main

1)What will be the output of this program ? class Test {     public static void main(String args[])     {         String s1="Include";         String s2="Help";         String s3;…

1)What would an image look like from a color and contrast aspect after displayin

1)What would an image look like from a color and contrast aspect after displaying only the thermal band without enhancement? 2) using thermal imagery - does water change temperatu…

1)What\'s the importance of recrystallization? 2) what is the criteria and its a

1)What's the importance of recrystallization? 2) what is the criteria and its applications or importance for sublimation? 3) how do we use melting point to identify a compound? 4)…

1)What’s the relationship between the electric potential on the surface of and i

1)What’s the relationship between the electric potential on the surface of and inside the conductor when all charges are at rest? 2)Define electron volt. 3)If you know electric po…

1)When 80-year-old Molly B. look at Herold wedding pictures, she was flooded wit

1)When 80-year-old Molly B. look at Herold wedding pictures, she was flooded with vivid memories of her parents, her spous, and the early years of her marriage. The pictures serve…

1)When CH4(g) reacts with H2O(g) to form H2(g) and CO(g), 206 kJ of energy are a

1)When CH4(g) reacts with H2O(g) to form H2(g) and CO(g), 206 kJ of energy are absorbed for each mole of CH4(g) that reacts. Write a balanced thermochemical equation for the react…

1)When CH4(g) reacts with H2O(g) to form H2(g) and CO(g), 206 kJ of energy are a

1)When CH4(g) reacts with H2O(g) to form H2(g) and CO(g), 206 kJ of energy are absorbed for each mole of CH4(g) that reacts. Write a balanced thermochemical equation for the react…

1)When Fe 3 O 4 (s) reacts with H 2 (g) to form Fe(s) and H 2 O(g) , 151 kJ of e

1)WhenFe3O4(s)reacts withH2(g)to formFe(s)andH2O(g),151kJ of energy areabsorbedfor each mole ofFe3O4(s)that reacts. Write a balanced thermochemical equation for the reaction with …

1)When Fe 3 O 4 (s) reacts with H 2 (g) to form Fe(s) and H 2 O(g) , 151 kJ of e

1)WhenFe3O4(s)reacts withH2(g)to formFe(s)andH2O(g),151kJ of energy areabsorbedfor each mole ofFe3O4(s)that reacts. Write a balanced thermochemical equation for the reaction with …

1)When Fe(s) reacts with Cl 2 (g) to form FeCl 3 (s) , 400 kJ of energy are evol

1)When Fe(s) reacts with Cl2(g) to form FeCl3(s) , 400 kJ of energy are evolved for each mole of Fe(s) that reacts. Write a balanced thermochemical equation for the reaction with …

1)When a newspaper decides to put a news story about a senatorial race on the fr

1)When a newspaper decides to put a news story about a senatorial race on the front page while putting an article about a local firefighter on page seven of the paper, it is engag…

1)When an alkene undergoes oxymercuration-demercuration, the reaction proceeds w

1)When an alkene undergoes oxymercuration-demercuration, the reaction proceeds with A) anti-Markovnikov orientation and syn addition. B) Markovnikov orientation and anti addition.…

1)When an electron circles in a uniform circular motion, which describes its spe

1)When an electron circles in a uniform circular motion, which describes its speed? a)It increases with each full circle. b)It decreases with each full circle. c)It remains the sa…

1)When an object is placed 17.0 cm to the left of a thin lens the image is 46.0

1)When an object is placed 17.0 cm to the left of a thin lens the image is 46.0 cm to the right of the lens. What is the focal length of the lens? 2) An object is placed 24.5 cm t…

1)When computing the test statistic for a hypothesis test, who do we assume Ho i

1)When computing the test statistic for a hypothesis test, who do we assume Ho is true? 2)In a hypothesis test, what does the P-value measure? I.e. what is the P-value the probabi…

1)When four roommates agree to specialize in chores they are most efficient, thi

1)When four roommates agree to specialize in chores they are most efficient, this can lead to: A a situation in which less time is spent on chores by every roommate. B some roomma…

1)When inflation is higher than anticipated we will likely see which of the foll

1)When inflation is higher than anticipated we will likely see which of the following occur A)People on fixed incomes will suffer B)The federal reserve will likely increase the mo…

1)When mass M is hung on a vertical spring, the spring stretches distance x . Wh

1)When mass M is hung on a vertical spring, the spring stretches distance x. When M is replaced by mass 1.81M on the same spring, the mass stretches an extra 2.67 cm. Find x, the …

1)When people must pay higher taxes on their wage earnings, it reduces their inc

1)When people must pay higher taxes on their wage earnings, it reduces their incentive to work is a positive statement. 2) We should lover taxes to encourage more work is a positi…

1)When price is $5 per unit, quantity demanded is 12 units. When price is $6 per

1)When price is $5 per unit, quantity demanded is 12 units. When price is $6 per unit, quantity demanded is 8 units. The value of the absolute price elasticity of demand is approx…

1)When the magnetic field magnitude in the inductor is maximum, which is true ab

1)When the magnetic field magnitude in the inductor is maximum, which is true about the electric field magnitude in the capacitor? a)It is maximum. b)It is one-fourth maximum. c)I…

1)When the market rate of interest was 11% waverly corporation issued $1,000,000

1)When the market rate of interest was 11% waverly corporation issued $1,000,000, 12% at 8-year bonds that pay interest semiannually . The selling price of this bond issue was a) …

1)When the probability of each state of nature occurring is unknown, the situati

1)When the probability of each state of nature occurring is unknown, the situation is referred to as decision making under: a. certainty b. uncertainty c. risk d. expected value 2…

1)When using the superposition theorem in ac network analysis, which one of the

1)When using the superposition theorem in ac network analysis, which one of the followingstatements is true? A) Voltage sources are replaced by short circuits. B) Current sources …

1)When using the superposition theorem in ac network analysis, which one of the

1)When using the superposition theorem in ac network analysis, which one of the followingstatements is true? A) Voltage sources are replaced by short circuits. B) Current sources …

1)When you have completed your calculations you discover that your grams/mL of B

1)When you have completed your calculations you discover that your grams/mL of BaCl2 is much higher than the actual value, what is the most likely source of error. (Assume that al…

1)Where must an object be placed in front of a converging lens to get a virtual

1)Where must an object be placed in front of a converging lens to get a virtual image? at twice the focal point between the focal point and twice the focal point between the lens …

1)Which are the possible alternative hypotheses we can formulate when working wi

1)Which are the possible alternative hypotheses we can formulate when working with a single sample?How do different hypotheses influence the critical values that determine the lim…

1)Which command would you use to create a directory named MyDirectory in the /us

1)Which command would you use to create a directory named MyDirectory in the /usr directory on a Linux system? 2)Which command is used to list the contents of a directory on a Lin…

1)Which country listed below and its cash crop laid the economic and infrastruct

1)Which country listed below and its cash crop laid the economic and infrastructural foundation for the narcotics industry in that same country? 2) After September 11, 2001 citize…