(d) A sample contains a mixture of ammonium carbonate (NH4)2CO3, sodium carbonate Na2CO3, and sodium chloride NaCl. Thermogravimetric analysis indicates that a 0.0965-g portion of this sample loses 0.0574 g over a temperature range of 50-75 oC and then loses another 0.0124 g at 800 oC. (i) What causes the weight loss at 50-75 oC?  (ii) What species will remain after being heated to 800 oC?  (iii) What is the composition of the original sample?  Given: Atomic masses: H = 1.008; C = 12.011; N = 14.007; Na = 22.99; O = 15.999; Cl = 35.45.

Q: Calculate the value of the equilibrium constant, Ke, for the reaction Q(g) + X(g) = 2 M(g) + N(g)…

A: The equilibrium expression written for a reaction written in the reverse direction is the reciprocal…

Q: Henry s law is important in environmental chemistry, where it predicts the distribution of…

A: According to Henry,s law, the distribution of pollutants in water  and atmosphere can be predicted…

Q: In an experiment to determine carbon dioxide extraction efficiency on the surface of the lungs (…

A: The concentration of any solution can be given by its molarity, formality and normality. The formula…

Q: (1a) Pure benzophenane freezes at 66.6 °C. A solution of 7.75 g of biphenyl (C12H10; molar mass =…

A:

Q: Lead hydroxide, Pb(0H)2(s) | Pb(OH)2(s)<→Pb+2(aq)+20H-(aq) | Ksp=1.4x10-20 Kw=1.00x10-14 Water…

A: Given:

Q: C6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l) ΔH = –2802.7 kJ mol –1 a) Write an expression for the…

A: Since you have asked a question with multiple subparts, we will solve the first three subparts for…

Q: Calculate the value of the equilibrium constant, Ke , for the reaction Q(g)+X(g) = 2 M(g)+N(g) given…

A:

Q: — What is the temperature increase? ☐A 4.9°C B 6.5°C C 8.7°C D from an 2 When 50 cm of hydrochloric…

A: The objective of the question is to find the temperature increase when 25 cm³ of hydrochloric acid…

Q: Calculate the value of the equilibrium constant, Kỵ, for the reaction Q(g) + X(g) 2M(g) + N(g) given…

A: Answer:For any reaction, value of equilibrium constant KC is equal to the ratio of molar…

Q: A 0.550-gram sample of a nondissociating enzyme was dissolved in water at 25°C to yield 50.0 mL of…

A: Given: Mass of solute = 0.550 g. Temperature = 25 oC Volume of solution = 50.0 mL = 0.050 L…

Q: 0.100 mol of AgCl(s) is added to 1.00 L of H20. Next, crystals of NaBr are added until 75.00% of the…

A: Answer is as follows hope it helps :

Q: What is qrxn if mixing 50.0 mL of 0.500 M HCl (aq) with 50.0 mL of 0.500 M NaOH (aq), both initially…

A: The reaction between HCl and NaOH is an exothermic neutralization reaction, which means it releases…

Q: Benzene's normal freezing temperature is 5.5°C. When 26 g of caproic acid (MW 116.2) a non- volatile…

A: We have normal freezing point as 5.5 degree Celsius,0.57 L of solvent, we have to calculate the new…

Q: 10 g rat (dry weight) is accidentally bottled in a 25 litre jug of spring water that initially…

A:

Q: The solubility  of magnesium oxalate, MgC2O4, in water is (7.70x10^0)x10-3 mol/L. What is the Ksp…

A:

Q: what is the maximum % recovery of TNT?

A: At low temperature- 100g ethanol : 0.70 g TNT At low temperature: 100 g ethanol : 18.58 g TNT   Now,…

Q: What is the value of pk, for the fluoride anion, F at 25°C? Ka(HF) = 7.1 x 10-4? Express your answer…

A:

Q: The solubility  of silver bromate, AgBrO3, in water is (7.70x10^0)x10-3 g/L. What is the Ksp for…

A: Given, Solubility of AgBrO3 - (7.70 × 10-3) g/L

Q: Calculate the amount of potassium chloride needed to prepare a 60 mL ORS based on the given…

A:

Q: Be sure to answer all parts. Enter your answers in scientific notation. At a particular temperature,…

A: NO (g) + H2 ---&gt; 1/2 N2 (g) + H2O (g) Kc = ?

Q: An 80 kg subject consumed a snack that contained 50 g of carbohydrate.  Before eating the snack the…

A:

Q: If Kc = 1.3 x 10^-4 for 2 NO + Cl2 -----> 2 NOCl. What is Kc for  4 NO + 2 Cl2 ------->  4 NOCl?

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: β‑Galactosidase (β‑gal) is a hydrolase enzyme that catalyzes the hydrolysis of β‑galactosides into…

A: The  molecular mass of β‑galactosidase is 116347.57g/mol.

Q: (b) 50mL of saturated solution of benzoic acid at 25°C requires 12.8 mL of 0.05 M NaOH to completely…

A: To determine the solubility of benzoic acid (Cbenzoic acid​) in grams per liter (g/L) of water at…

Q: (Q71) The osmotic pressure of a solution containing 36.0 mg of an unknown protein dissolved in 5.84…

A: Given,  Mass of the unknown protein,  W = 36 mg = 0.036 g Volume of the solution,  V = 5.84 ml…

Q: What is the solubility of HgI2 in water? The Ksp for HgI2 is 4.0X10^-29

A: Ksp formula  used HgI2 = Hg2+ + 2I-               S             2S

Q: Human saliva contains the enzyme α-amylase which hydrolyzes polysaccharide acetal linkages.  A soda…

A: Given: Observation table To find: a) Starch from cracker water mixture was hydrolysed. Starch in one…

Q: H₂SO3(aq) + CsOH(aq) → Express your answer as a chemical equation. Identify all of the phases in…

A: This question is related to chemical reactions. A chemical reaction is feasible when  no extra…

Q: 5.25mL of a 1.35M solution of sodium hydroxide is combined with 6.90mL of a 810.mM solution of…

A: The enthalpy of neutralization is 7.1790 kcal/mol.

Q: percent by mass

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

Q: Question 19 of 30 What is the predicted change in the boiling point of water when 4.00 g of barium…

A: When we add solute particle in a solvent like water then the boiling point of the solution…

Q: Number 1

A: In titration of a strong acid and a weak base, the equivalence point will be on the acid side of 7,…

Q: What is the accepted value for the Ksp of Ca(OH)2, including the conditions for its determination

A: Given   What is the accepted value for the Ksp of Ca(OH)2, including the conditions for its…

Q: Flow Diagram for Mixtures You are given a mixture of three solids: AgCl, NaCl, and PbCl2. The…

A: Characteristics of three compounds: 1. NaCl is soluble in both hot and cold water . Step I: when we…

Q: If you are asked to find the molar solubility of  KCl2 at SATP, what are you looking for? s Ksp…

A: Solubility is the ability of a substance to dissolve itself in a given solution. The quantity of…

Q: Calculate the value of the equilibrium constant, Ke, for the reaction Q(g) + X(g) = 2 M(g) + N(g)…

A:

Q: An ionic compound has a very negative ΔHsoln in water.(a) Would you expect it to be very soluble or…

A: An ionic compound having a very negative enthalpy of solution in water means it is expected to be…

Q: The solubility of Fe(OH)2 in water at 25 °C is measured to be 5.2 × 10¯ Round your answer to 2…

A: Given, solubility = 5.2 x 10-4 g/LTo calculate the solubility product we need to calculate the molar…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.