A solution of Mg(NO3)2 is prepared in 425 mL of water by adding 32.0 g Mg(NO3)2. What us the concentration of nitrate ion (NO3-) in this solution? (a) 0.216 M (b) 0.432 M (c) 0.508 M (d) 1.02 M

Q: For the following electrochemical cell: Ag(s) | Ag+(aq) | | Fe2+(aq) | Fe(s) A. Calculate the Ecell…

A: To determine the deltaG° value , first we will determine the value E°Cell.   The reaction between…

Q: Name the shape and give the AXEn classification and ideal bond angle for each of the following…

A: According to VSEPR theory, molecular geometry of the molecule can be predicted.  If there are only…

Q: What would you expect to be the electron-group arrangement around atom A in the following case? Give…

A:

Q: ) The insecticide die pon complete combu 094 g CO₂ and 0,286 holar mass of 381 and toms. What is its…

A:

Q: What is the proper name for Fe(NO3)3? (a) iron (II) nitrate (b) iron (III) nitrate (c) iron (II)…

A: Proper Name of Fe(NO3)3

Q: An unknown gas takes 4.577 times longer than helium to diffuse into a given volume. What is a…

A: Answer: Rate of diffusion of a gas is equal to the ratio of the volume occupied by it in the given…

Q: 1. Sort the following reactions under the correct "type of reaction" - be sure to sort ALL cards…

A:

Q: The following osmotic pressure data have been obtained for lactate dehydrogenase in two different…

A: Given that: Temperature = 25oC Buffer density = 1.012 g/mL Height of solvent per g/L = 0.183…

Q: Titanium(IV) chloride decomposes to form titanium and chlorine, like this: TICI,()-Ti(s)+2C1,(9) At…

A: The product of the molar concentrations of the products, each raised to the power equal to a…

Q: A solid has a solubility at room temperature of 78 grams per liter. If 1.0 L of a heated solution…

A: Solubility is defined as the maximum amount of a substance that will dissolve in a given amount of…

Q: Scientists conducted EDTA titration to check for water hardness, they used two 150 mL samples for…

A: Mg+2 + EDTA = Mg-EDTA                               Ca+2 + EDTA =…

Q: Predict the products and balance the following reaction: Li + ZnCl2 →

A: Displacement reaction - When a more reactive element displace another atom from a molecule to form a…

Q: What is the pH of a buffer that is 0.398 M HF and 0.133 M LiF? The K, for HF is 3.5 x 10.4. Your…

A: Given-  Concentration of Acid HF=0.398M Concentration of Salt LiF= 0.133M

Q: Can you show the mechanism?

A:

Q: I Half-reaction E° (V) I₂(s) + 2e™. 21 (aq) 0.535V 2H+(aq) + 2e™ Al³+ (aq) + 3e¯ (1) The strongest…

A:

Q: A container with a constant volume is held at 10.2 atm and 25 degrees Celsius. The temperature is…

A: Given: Initial pressure of gas = 10.2 atm Final pressure of gas = 12.7 atm Initial temperature of…

Q: The charge form of the aspartic is believed to participate in a reaction catalyzed by an enzyme. At…

A: At a particular pH the group with less pKa will be in ionic form

Q: Consider the reaction: C3H8(g) + 3 O₂(g) → CH4(g) + 2 CO₂(g) + 2H₂0(1), AH=-1330. kJ/mol. Using this…

A: The given reaction is an exothermic reaction, as indicated by the negative value of the heat of…

Q: 13.0 to precipitate Mg(OH)2, and 5.55 mL of the same titrant was used to attain the endpoint. (MW:…

A: To determine the total hardness of the water, you will need to calculate the concentration of Ca and…

Q: A 35 mL sample of 0.20 M KOH is titrated with 0.25 M strong acid (HX).  What is the pH of the…

A: Given that, 35 mL of 0.20 M of KOH solution is titrated with 0.25 M strong acids (HX).  We have to…

Q: About how many molecules of aspirin (formula mass aspirin= 180 amu) are there in a 0.250 gram…

A:

Q: Use the given ΔGf° values to calculate the equilibrium constant (K) for this reaction at 296.1 K.…

A:

Q: The molecule having unpaired electron in its orbital is _____ when placed in external magnetic…

A: Please find your solution below : Paramagnetism is a property of certain materials that are…

Q: &Moving to another question will save this response. Question 29 in the following reaction, identify…

A:

Q: Question 24 List the following gases in order of increasing density at STP: C4H10 H₂ N₂O CH4 SO2 O…

A:

Q: Calculate the number of kilojoules of energy required to convert 30.0 grams of liquid ethanol…

A: Answer: In this question we have to find out the energy required to increase the temperature of…

Q: Classify each chemical reaction: reaction 2 Na(s) + Cl₂(g) → 2NaCl(s) HCl(aq) + NaOH(aq) → NaCl(aq)…

A: There are various types of reactions such as combination reaction, displacement reaction,…

Q: Because of the toxicity of mercury compounds, mercury(I) chloride is used in antibacterial salves.…

A: The volume of water = 4900 km3 Ksp = 1.5 × 10−18 The reaction for the dissociation of the Hg2Cl2 is…

Q: Which of the following ionic compounds is insoluble in water? (a) CaCl2 (b) Ba(NO3)2 (c) BaSO4 (d)…

A: By looking at the solubiluty chart, we can predict the solubility of ionic compounds.

Q: 10. How would you accomplish the following conversion? Br ОН 11. How would you accomplish the…

A: The given two reactions involve the conversion of cyclic bromo compounds to diols.

Q: What is the electron pair geometry of N in NH3? (a) Tetrahedral (b) Trigonal Planar (c) Square…

A:

Q: Given the following reaction and the amounts of the reactants, determine the mass (in grams) of…

A:

Q: 2) What is the major organic product obtained from the following reaction? 1. C H 3 CH ₂ CH (CH3) Mg…

A: When aldehyde reacts with grignard reagent it gives alcohol.

Q: Might be present HgO ZnSO Cds Pb(NO3)2 Na SO Are definitely present Cd(NO₂)2 Are definitely absent…

A: Dilute HCl Bubbling H2S at different pH

Q: How do you find H3O+ from molarity, pH or pOH/OH-?

A: pH = - log [H3O+] pOH = - log [OH-] pH + pOH  = 14   [H3O+]  = 10-pH  [OH-] = 10-pOH    [H3O+] [OH-]…

Q: Shown below is a scheme representing an interaction (shown with dashed lines) between two water…

A: Hydrogen bond is a weak attraction between a hydrogen atom bonded with highly electronegative atom…

Q: What mass of KCIO3 is needed to make 300.3 g of a 7.29% by mass solution

A:

Q: Which of the following ions has the smallest size? O cr Br O Ga³+ Okt OCa2+

A:

Q: Draw the structural condensed formula of 4-ethyl-1-heptyne.

A: Given -> 4-ethyl-1-heptyne  -> The condensed formula of molecule is the formula where symbols…

Q: Friedel-Crafts alkylations almost always give mixture of products but Friedel acylations don't…

A: Friedel-Craft alkylation reaction: When the benzene reacts with an alkyl halide in presence of a…

Q: You need to identify the three anions present in your unknown solution from this pool of possible…

A: Ions present in the solution Cl-, SO4^2-, and CO3^2-   Explanation :-Based on the information…

Q: Calculate the pH of a buffer in which the concentration of HOCl is 6.50 x 10-4 M and that of NaOCl…

A:

Q: For what reason(s) would HBr NOT be an ideal reagent for the reaction shown below? 31-34 CH₂ H₂C H₂C…

A: The given reaction is an example of SN1 reaction. The first step of the SN1 reaction is the…

Q: 5. An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room…

A: In an aqueous solutions, water is the solvent while the solute can be a soli, liquid or gas. The…

Q: QUESTION 59 What is the effect on the calculated value of the water of hydration should you fail to…

A: 59) Water of hydration : It is calculated by dividing the mass of the water lost by the mass of…

Q: Halogens as substituents in electrophilic aromatic substitution are: I. meta directors II.…

A: A question based on introduction to organic chemistry.

Q: What is the activity coefficient for each ion at the given ionic strength at 25 °C? Activity…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: a. Write the nuclear equation for the alpha decay of Ra-224. b. Potassium-40 (40 K) decays to…

A:

Q: A 0.884 M solution of a weak acid HA, is 5.40% ionized. What is the pH of the solution?. show work.…

A: Answer:- This question is answered by using the simple concept of calculation of pH of weak acid…

Q: 10. What type of reaction will occur with the following substrate and reagents? C **** NaBr ?

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".