A chemist adds 50.0 mL of a 0.42 mol/L sodium thiosulfate (Na₂S₂O3) solution to a reaction flask. Calculate the millimoles of sodium thiosulfate the chemist has added to the flask. Round your answer to 2 significant digits. mmol x10 X

Q: When applied to electrons the pauli excision principal requires what

A: When applied to electrons the pauli exclusion principal requires that there is only  two electrons…

Q: 32. 33. 34. CH 35.

A:

Q: OF nea con 1,50, HO 1equ Na OMSO HOI

A:

Q: Of the following, which represents a logical retrosynthesis for the given transformation? H OH OH OH…

A: During retrosynthetic analysis only the route with available reagents is thought to logical

Q: Determine the value of Ksp for Zn3(PO4)2 by constructing an ICE table, writing the solubility…

A:

Q: From the Lewis structures of the species given, pick all of those in which the central atom obeys…

A: Octet Rule : According to the octet rule when the valance shell of an atom has eight electrons then…

Q: Propose an efficient synthesis for the following transformation: CH3 of-ola CH3 CH3 The…

A: This is a transformation reaction involves multi step . To find out the reagents for this…

Q: Select all nuclear reactions. n Р P particle positron -C

A: We need to identify the nuclear reactions from the given reaction systems. Some of them are chemical…

Q: Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted-Lowry base in this…

A: Since, Bronsted- Lowry acid are proton donar and Brosted- Lowry base are proton accepter. Thus,

Q: We have 2.36 L of an aqueous NaBr solution. We add an excess of AgNO3. We form 9.04 g of AgBr(s).…

A:

Q: In step C, which mechanistic step(s) is(are) taking place? Choose all that apply Nucleophilic attack…

A: Here we are required to find mechanism occurring in the different stages of 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: CO (g) + 2 O₂ (g) → CO₂ (g) a) For this gas phase reaction, determine (i) ArxnH (in kJ/mole) and…

A: (A)The value of delta H for the given reaction can be calculated as ∆Hf = ∑Hproducts - ∑H reactants=…

Q: Hello, the answer to this question is showing as half correct, what is the other mechanistic step…

A: Abstraction of acidic proton take place

Q: Calculate the effective radiation dosage in sieverts for a 59-kg person who is exposed to 3.4 x 10…

A: We need to find the effective radiation dosage in sieverts for 59 kg person.  It is given, He…

Q: Write a balanced equation to represent the complete combustion of each of the following. (Use the…

A: The combustion reaction of hydrocarbon generally produces CO2 and water. but we have to balance the…

Q: What is the common name of this compound? H₂C OH

A: Well, the given compound is an acid since it contains a carboxylic group. So, in IUPAC nomenclature…

Q: Question 1 » Listen An atom has the following electron configuration: 1s² 2s²2p¹ Assuming the Aufbau…

A:

Q: Draw the reaction mechanism of cyclohexanol to cyclohexene

A:

Q: Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the…

A: Strong acid + strong base = neutral salt Strong acid + weak base= acidic salt  Weak acid+ strong…

Q: 4. Draw the idealized density of states diagram for graphene. Clearly label your axes, and show…

A:

Q: The phosphorus in a 0.3724 g sample was precipitated as the slightly soluble (NH4)3PO4.12MoO3. this…

A: We need to find the mass of P2O5 in terms of percentage.  We have given, Weight of PbMoO4 = 0.3724 g…

Q: pH 1.806 2.020 2.235 2.449 2.664 2.878 3.093 3.307 3.522 3.736 3.951 4.165 4.380 4.594 4.809 5.023…

A:

Q: A solution has a pH of 3.4, what is [H*]? 2.51 x 10-11 M 3.4 M 3.98 x 10-4 M 07M

A:

Q: 2. Which of the following statements is incorrect? (a) If K> 1, the forward reaction is favoured (b)…

A: Equilibrium constant, which is the ratio of their concentrations in chemical equilibrium, expresses…

Q: Dilution A chemist makes 220. mL of aluminum chloride (AICI3) working solution by adding distilled…

A: The concentration of a solution decreases upon dilution.  This is because concentration is inversely…

Q: A topical antibiotic is 3.0 % (m/m) clindamycin. What does this statement imply?

A: % (m/m) is the indicative of concentration of a solution.

Q: Suppose the following reaction occurs:   Ba + HI   → (products), one of the products will be BaI…

A: Since, If atom have tendency to have charge +2 then atom combine two mono halogen.  Thus,

Q: Which one of these would be most easily hydrolyzed to benzoic acid? ol NH₂ OD O A OB A B CH3 C CI 1…

A: Most easily hydrolysed compound = ?

Q: In the above reaction, the oxidation state of chlorine changes from How many electrons are…

A:

Q: 3. Assuming that concentrated hydrochloric acid (HCI) is 12.1 M and that the synthesis reaction has…

A: To determine the molar ratio first we need to calculate the moles of both reactants.  The limiting…

Q: Use the balanced equation below to answer the following question. How many milliliters of 0.300M HCl…

A:

Q: 2. Calculate the degree of sp-hybridization for a C atom in the following molecules/materials: a)…

A:

Q: Give the expected products from each of the following reactions. Di a) b) 0 H NaOH H₂O -CHO +…

A:

Q: Question 6: Designate the R/S configuration for any chiral centers in the following molecules 1. 3.…

A:

Q: What is the name of the product of this reaction? H3C CH₂MgBr H₂O*

A:

Q: A flexible container at an initial volume of 4.11 L contains 2.51 mol of gas. More gas is then added…

A:

Q: Imagine an alternate universe where the value of the Planck constant is 6.62607 J.s. In that…

A:

Q: Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M)…

A: The 5H multiplet in proton NMR around 7 ppm is the signature peak for monosubstituted proton.

Q: What is the pH of a solution of acetic acetate and sodium acetate each being 1.0 M where K₂ = 1.8 x…

A: Well, to calculate the pH we will use the Henderson-Hasselbalch equation. in the first case we…

Q: In the following net ionic equation, identify each reactant as either a Bronsted-Lowry acid or a…

A: Since, Bronsted- Lowry acid are proton donar and  Bronsted- Lowry base are proton accepter. Thus,

Q: One molecule of N2 gas contains ______N atoms a)1.20x1024 b)28 c)6.022x1023 d)2

A: Given, 1 molecule of N2  So find number of atom?

Q: If you mixed 375 ml of 5.2 M HCO2H with 375 ml of 5.2 M CH3CO2-, what would be the final pH?

A: Given that  375 ml of 5.2 M HCO2H is mixed with 375 ml of 5.2 M CH3CO2- The the final pH of the…

Q: draw. a lewis diagram for C2H2

A:

Q: What volume of total alcohol does this concentration represent, assuming a blood volume of 6.0 L ?…

A: Volume of blood  = 6 L (1 L =1000 ml) = 6000 ml Percent of alcohol = 0.080%

Q: Which formula can be used to calculate the percent yield? (Theoretical yield + actual yield) x 100 O…

A: Percentage yield for a reaction can be calculated by dividing the actual yield of the product by the…

Q: 22. Which of the following hydrocarbons requires 2 moles of Br2? A. 1-butene B. 1-butyne C.…

A: Here we have to choose the correct option about above question-

Q: TRANSMITTANCE [%] 100 08 Unknown 11 4000 3500 3000 2500 2000 WAVENUMBER [cm-1] 1500 1000 500

A: IR spectroscopy

Q: For the reaction 2H₂O(1) 2H₂(g) + O₂(g) AH = 572 kJ and AS° = 327 J/K At standard conditions, this…

A:

Q: How much will the temperature of a cup (175 g) of coffee at 94.3 °C be reduced (in °C) when a 47 g…

A: