Q: Which of the following groupings contains only representative elements?
A: S block & p elements except noble gases are collectively known as representative elements .
Q: 7.7 Predict the product of the reaction. HCI
A: To find out the product now we have to look out the mechanism for this reaction. Actually this…
Q: How many moles of HCl are in 1.5L of a 0.50M solution? 0.33 moles 3.0 moles 0.75…
A: According to the question we have, The volume of the HCl solution is given by = 1.5 L The molarity…
Q: The reaction SiO2 (s) + Pb(s) → PbO2(s) + Si(s) is spontaneous: AGf (PbO2(s)) = -217 kJ/mol AGF…
A:
Q: 4. CAN CARBOXYLIC ACIDS BE FURTHER OXIDIZED? WHY OR WHY NOT? 5. HOW IS SOAP PREPARED? 6. WHY IS…
A: The questions given are about the oxidation and esterification of carboxylic acids. The answers are…
Q: Indicate whether each of the following solution combinations will make a buffer solution. 1. 50.0…
A: A buffer solution is a mixture of a weak acid and its salt with a strong base (Acidic buffer) or a…
Q: if pH of a buffer solution prepared by mixing 20.0 mLmL of 0.0500 molL−1NaOHmolL−1NaOH with 20.0…
A: Cacodylic acid is a weak acid and neutralized by NaOH according to the reaction…
Q: CREATE A CONCEPT MAP FROM THIS PASSAGE: In this article, we will discuss polyatomic ions. The prefix…
A: 1) In polyatomic ions prefix Poly means many while in monoatomic ions mono means one. 2) Polyatomic…
Q: A current of 250. A flows for 24.0 hours at an anode where the reaction occurring is as follows:…
A:
Q: 4. The polypeptide below is a target for prenylation. Draw the final processed polypeptide. QWAECAC
A:
Q: Write a valid Lewis structure of the compound with the elemental composition C3H7I that gives the…
A: Lewis dot structure of any molecule shows the bond pair and lone pair of each atom present in that…
Q: 1. Fifty grams of Xenon (AW = 131.293 g/mol) undergoes a reversible isothermal expansion from 1.00…
A:
Q: The enthalpy change for the following reaction is 81.1 kJ. 2HCI(g) + Br₂(g) 2HBr(g) + Cl₂(g) a To…
A: Given -> 2HCl(g) + Br2(g) ---> 2HBr(g) + Cl2(g) Enthalpy change = 81.1 kJ
Q: At 25°C, the following heats of reaction are known: 2C₂H₂(g) +502(g) 4CO₂(g) + 2H₂O(l) AH = -2,600…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A mole of an ideal gas with cp-5/2 R = 29.10 J mol-1 K-1 undergoes the successive change 1->2:…
A:
Q: t 1000K, Kp = 0.297 for the decomposition of sulfure trioxide. A reaction vessel initially contains…
A: We will first write the balanced reaction. and since it is given 20% of sulfur trioxide remains…
Q: Consider the nitrogen atoms (labeled A-D) in the molecule of 8-Chlorotheophyline shown below. Which…
A: we have to determine the nitrogen atoms which do not have delocalized electrons
Q: A 45.0 mL solution of 0.550 M Pb(NO3)2 was mixed with 50.0 mL of 0.700 M Na3PO4, resulting in the…
A: we have to calculate molecular weights, theoretical yield of product and amount of unused reactant
Q: A salt solution was made by combining 45g of NaCl with 125g of water. What is the percent…
A:
Q: 3. Elemental boron can be formed by reaction of boron trichloride with hydrogen. BC13(g) + 1.5H₂(g)…
A:
Q: When 0.776g of sodium metal is added to an excess of hydrochloric acid, 8070 J of heat are produced.…
A: Given : Mass of sodium metal = 0.776 g Heat produced = 8070 J
Q: Why is it in Cm3 and not mL?
A: The answer of the given question is explained below:
Q: Vanadium metal, V, reacts spontaneously with Cd²+ (aq) but not with Ti2+ (aq). Based on this…
A: Given that vanadium (V) reacts spontaneously with Cd+2 but not with Ti+2.
Q: What is the pHpH of a buffer solution prepared by mixing 20.0 mLmL of 0.0500 molL−1NaOHmolL−1NaOH…
A: We have to calculate the pH of buffer solution
Q: What volume (in mL) of a 0.190 M Ca(OH)2 solution should be used to neutralize 22.1 mL of a 0.377 M…
A:
Q: How many mL of a 0.203 M aqueous solution of cobalt(II) nitrate, , must be taken to obtain 6.24…
A:
Q: As a chemical reaction proceeds toward equilibrium, the free energy of the system decreases at…
A:
Q: Prepare 1 L of 1M HCL (25% concentrated HCL). Complete solution, assumptions.
A:
Q: A concentration cell consisting of two hydrogen electrodes (PH₂ = 1atm), where the cathode is a…
A: The given reaction are simple concentration cell where the anode and cathode solution differing in…
Q: Which isotope, when bombarded with bismuth-209, would yield two neutrons and an isotope with atomic…
A: Isotopes are two or more atom types that have a differing number of neutrons in their nuclei despite…
Q: Choose the resonance structure that results from the arrow pushing scheme bela Co :0: O H :0: -Ö:0…
A: Here we are required to find the correct resonating structures of the given compound.
Q: A 1.0-LL buffer solution initially contains 0.30 molmol of NH3NH3 (Kb=1.76×10−5)(Kb=1.76×10−5) and…
A:
Q: Exercise The volume of 1 mole of Helium (He) gas at different temperature values given in the…
A: On plotting graph of Volume of He vs Temperature :
Q: In the Figure below two closed volume containers are shown V = 1 dm³ each one, both at room…
A: Two container of volume 1 dm3(1 L) at 25.0°C, are filled with water at 25.0°C. In container A, 0.05…
Q: What is the melting point of a 100 g sample of water that contains 2 mol of ethanol? One mole of the…
A:
Q: Na₂S (aq) + ZnCl₂(aq) Total ionic: Net ionic: t 0-0 X S
A:
Q: 4.5 Sources and Uses of Alkanes What process does the following reaction describe? isomerization O…
A:
Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide: HgO(s) →…
A:
Q: Determine the major product (include stereochemistry) HBr
A:
Q: Fifty grams of Xenon (AW = 131.293 g/mol) undergoes a reversible isothermal expansion from 1.00 atm,…
A: Firstly temperature can be calculated by using the Ideal gas equation PV= nRTorPV = mMRT where P is…
Q: HNO3 H₂SO4 Fe HCI Br AlBr3 COMPOUND N
A:
Q: Hydrogen sulfide decomposes according to the following reaction: 2H2S(g) → 2H2(g) + S2(g) - For this…
A:
Q: Indicate whether each of the following solution combinations will make a buffer solution. 50.0 mL…
A: Buffer solution is a solution which resist in change in its pH when a small amount of acid or base…
Q: 5. Steam enters the turbine with an enthalpy of 3628 kJ/kg at 89 m/s and leaves the same stage with…
A:
Q: 1. Fifty grams of Xenon (AW = 131.293 g/mol) undergoes a reversible isothermal expansion from 1.00…
A:
Q: Indicate whether each of the following solution combinations will make a buffer solution 50.0 mL of…
A:
Q: 1. Fifty grams of Xenon (AW = 131.293 g/mol) undergoes a reversible isothermal expansion from 1.00…
A:
Q: in the presence of a common ion. Calculate the solubility of MgF2 (a) in pure water and (b) in a…
A:
Q: The Solubility Product Constant for zinc carbonate is 1.5 × 10-¹¹. Solid potassium carbonate is…
A: We will first determine the Ksp expression. and we will get the concentration of Zn2+ from the…
Q: In the rusting of iron, the reduction reaction that occurs is: O Fe → Fe²+ + 2e™ Ⓒ2H₂O → O₂ + 4H* +…
A: Rusting of iron: The rusting of iron is a chemical reaction in which reddish brown coating forms on…
What is the mean of the values 7.5, 7.7, 4.2, 3.7, and 3.0? Give your answer to the first decimal place.
Step by step
Solved in 2 steps with 2 images
- Use the References to access important values if needed for this question. Two-Step Algebra 1 1 bc + d In order to solve the equation above for b, you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right-hand side of the expression: 1 + - = a +bc + - dTwo-Step Algebra a = -bc+d Use the References to access important values if needed for this question. In order to solve the equation above for c, you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right-hand side of the expression: +a = -bc+dThe boundaries of the shaded region are the y-axis, the line y =1, and the curve y =4√x.Find the area of this region by writing x as a function of y and integrating with respect to y.
- Use the References to access important values if needed for this question. Two-Step Algebra a =b+ cd lne In order to solve the equation above for d, you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right-hand side of the expression: -b ta =-bv +b+ cd Ine Step Two Multiply both sides of the equation by the same expression: x(a - b) = xcd Ine The resulting equation is: d = SubmitMultiply both sides of the equation by the same expression: (Be sure that the answer field changes from light yellow to dark yellow before releasing your answer.) 1 1 *(-A) [A] [A]o Drag and drop your selection from the following list to complete the answer: -t 1 t = t 1 t x ktI am trying to understand sig figs and I understand the rules of multiplication/division as well as addition/subtraction; round final answer to the least number of sig figs and least amount of decimal places respectively. I am stuck however on a textbook problem that is as follows:(14.84 x 0.55) - 8.02the answer in the book states the final answer has 1 sig fig but I keep coming up with two since there are two decimal places in the subtraction portion and two sig figs in the multiplication portionmy work is as follows:14.84 x 0.55 = 8.162 and 8.162 - 8.02 = 0.142 which lead me to calculate my final answer as 0.14 however in the book the correct answer is 0.1it says it's because in 8.162 has only one known decimal place but I am confused because if it had one known decimal place shouldn't it read 8.16 making the 2 unknown. How am I supposed to know that the significance ends at 8.1 and not 8.16? please help me!!!
- The following linear plot is derived from a function of the form Y = ae", where a and b are constants. 7 6 5 4 2 1 0 0.1 0.2 0.3 0.4 0.5 0.6 For the function y = ae' bx from which the data points on the graph were derived, the numerical value of the constants are a = and b = In yThe following linear plot is derived from a function of the form y = ae", where a and b are constants. 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 For the functiony = ae" from which the data points on the graph were derived, the numerical value of the constants are a = and b = A ujFor the straight line defined by the points ( 4,55) and (6,83), determine the slope (m) and y-intercept (b). Do not round the answers.
- Compute the values. Express these answers to the hundredths place (i.e., two digits after the decimal point). log (1.8) = 0.26 In (1.8) = Solve for x and y in the given expressions. Express these answers to the tenths place (i.e., one digit after the decimal point). 0.38 = log (x) 0.38 = In (y) x = y =7. From the normal curve of error, find the probability that a result is outside the limits of ±2σ from the mean. What is the probability that a result has a more negative deviation from the mean than -2σ?For this I got 1.1, I just wanted to make sure that it was correct
