At what pH range would methyl orange produce a change in color?

Q: 7. 25.0 cm³ of a mixture of Na₂CO3 and NaHCO3 were titrated with a 0.10 mol dm³ solution of HCI. The…

A: Indicator used for titration of NaHCO3 is methyl orange while phenophthalein is used as an indicator…

Q: A. Methanal B. Cyclohexane Structural formula Odor Use/s Aldehyde or Ketone?

A:

Q: Radium-223 has a half-life of 11.43 days. How long will it take for 80% of a sample of the said…

A:

Q: Ethyl acetate, acetate and ethanol were added to water solution in concentrations of 0.3M and left…

A:

Q: Q1:- what is the solubility (s) for Ag3PO4, if you know that Ksp for Ag3PO4 = 1.4 x 10-8 ?

A: 1.) To calculate solubility , we would write dissociation equation and expression for Ksp.    Note :…

Q: What is the mass in grams for a 50 mL and 100 mL beaker Then calculate the mass of Calcium chloride…

A: mass in gram of 50 ml and 100 ml beaker

Q: A gas, behaving ideally, has a pressure P₁ and at a volume V₁. The pressure of the gas is changed to…

A: Choose the correct option of the following by using different gas laws as given---

Q: Q5. Which one of these statements is NOT true? Photoresist is used in photolithography Photoresist…

A: The given statements are Photoresist is used in photolithography. Photoresist is used as a mask…

Q: If the system CaCO3(s) + 2H+(aq) --> Ca2+(aq) + CO2(g) + H2O(l) is saturated with respect to CaCO3,…

A: In the system, CaCO3(s) + 2H+(aq) --> Ca2+(aq) + CO2(g) + H2O(l) we can see that H+ is reacting…

Q: A reaction vessel contains 6 volumes of O2 and 2 volume of CH4 at a temperature of 134 °C and a…

A: Solutions Hence the final total pressure be 524.8 kpa

Q: How synthesis 3-methyl-butanol By using ethyene+probene

A: PREPARATION OF 3-Methyl- butanol:- The structure of 3-methyl butanol is:-

Q: TRUE OR FALSE 10. When low-frequency electromagnetic radiation is applied to a metallic surface,…

A:

Q: How many grams of bromo-3-methypentane are there in 0.250 litre of a 30.0 mM solution? Show your…

A:

Q: Select the correct IUPAC name for the branched chain alkane.

A:

Q: Consider the reaction Mn+ + ne- ⇌ M. If ΔG*c = ΔG* + (1-α)nFE and η = E – Eeq, prove that ic = io…

A: Given: Mn+ + ne- ⇌ M. If ΔG*c = ΔG* + (1-α)nFE and η = E – Eeq, To  prove that ic = io…

Q: Describe the preparation of I L of 5moll-2 HCL colution from concentrated acid/d=1019 g/m²: 37.500)

A: **As you have asked multiple questions, I am solving first question. Either resubmit other questions…

Q: 2. The pressure on a 425 ml sample of gas is decreased from 855 torr to 759 torr. What will be the…

A:

Q: Determine the freezing point and boiling point of the solution. (Assume density of water = 1.00…

A:

Q: Consider the gas phase reaction 2 NO + H₂ → N₂O + H₂O The experimental rate law is found to be R =…

A:

Q: Bombardier beetles are called as such because their defense mechanism involves shooting a hot…

A: Given: Specific heat of solution = Specific heat of water = 4.18 J/g.K Initial temperature of…

Q: Q3:- In a thermodynamic processes, If the amount of work done on the gas by its surrounding is 220 J…

A:

Q: Determine the number of atoms in a 1.00 mg sample of Carbon-14?

A:

Q: The following results were obtained from an analysis of copper content in four representative…

A: True value = 5.10 ppb Cu content in different observations ( xi ) : 5.34 ppb, 5.37 ppb. 5.44 ppb.…

Q: The vaporisation of a certain element at 21 degrees Celsius had the following enthalpy and entropy…

A:

Q: Propose the reaction mechanism of the following reaction. H *.8 Heat ய்ரயம் FO

A: We have to draw the mechanism for reaction given below:-

Q: PACKED BED REACTOR (PBR) I want the theory part for the PACKED BED REACTOR (PBR) advantages,…

A: ✓Packed bed reactors are one of the most common reactors used in the chemical industry due to their…

Q: You have been provided with a 2.08 x 10-2 L  sample of lithium hydroxide (LiOH) of unknown…

A:

Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, Cl = 35, Al =…

A: Molecular weight of AgCl = ( 108 +35) = 143 g/mol  So, 143 g AgCl = 1 mol AgCl  1 g AgCl = 1/143 =…

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: ✓The first law of thermodynamics states that energy can neither be created nor destroyed, only…

Q: 150 mmol/L of the following substances are dissolved in pure water. Which would have the highest…

A:

Q: In titration of 100 ml 0.3 Mn²+ with 0.7 M EDTA (pH = 7), when 50 ml EDTA is added what is pMn²+?…

A:

Q: Chemistry can you answer it with full steps PLEASE DO NOT USE ice to solve it Q3- How many…

A: 2,2'-bipyridinium ion is a weak acid with Ka = 4.6*10-5  2,2'-bipyridine is the conjugate base of…

Q: Chemistry Answer the following questions regarding Tobacco Etch virus protease: 1) the class of…

A: TEV Or tobacco etch virus  protease  is sequence specific cysteine protease obtained from Tobacco…

Q: read the passage and answer the question: - knowing the rate of absorption and elimination of…

A: Following are some behaviour change by which one should avoid too much consuming alcohols ✓Avoid…

Q: 1. For a magnetic system, the infinitesimal change in internal energy may be expressed as du = TdS +…

A:

Q: 16-20. At 575°C, nitrous oxide (N₂O) decomposes into its elements on a nickel surface. The reaction…

A: Given, 2N2O(g) ➝ 2N2(g) + O2(g) The reaction follows zero order Kinetic. Rate constant (k) = 0.42…

Q: Q1:- what is the solubility (s) for Ag3PO4, if you know that Ksp for Ag3PO4 = 1.4 x 10-8 ? Q2:- what…

A: Ag3PO4 and Car(PO4)2 are sparingly soluble salt.

Q: Q6. If etch rates are 100nm/min for silicon and 10nm/min for silicon dioxide mask, the etch…

A: ✓Etch selectivity is the ratio of etch rates between materials. The formula for etch selectivity is…

Q: What is the hydroxide ion concentration in a solution that containing 0.30 mole of ephedrine and…

A:

Q: The titration curve from the reaction of a strong base with a weak acid is shown below. Recalling…

A:

Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A:

Q: Consider the equilibrium, BaSO4 (s) ⇌ Ba2+ (aq) + SO42- (aq)  for which ΔH > 0. How will heating…

A: The given equilibrium reaction isBaSO4 (s) ⇌ Ba2+ (aq) + SO42- (aq) for which ΔH > 0

Q: A solution containing Z grams of polystyrene per 1.5 L has an osmotic pressure of 10 torr at 25C.…

A:

Q: 9. A buffer solution was prepared by dissolving 0.15 mol of sodium ethanoate in 1 dm³ of 0.10 mol…

A: Buffer solution are solution which can resist the change in pH of the solution when acid and Base…

Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A:

Q: Hydrogen was collected over water at 21.4°C on a day when the atmospheric pressure was 741 Torr. the…

A:

Q: Identify the SOA and SRA Options for SOA: Fe2*, Cl-, H2O, H+, Na+, No3- + H+. Options for SRA: Fe2*,…

A: Reduction takes place at the cathode whereas oxidation takes place at the anode.  The chemical…

Q: 5.66 A mixture contains equal amounts of compounds A-D. a D C B A a. Which compounds alone are…

A: A question based on stereochemistry of organic reaction that is to be accomplished.

Q: What are each of the following observations an example of? Drag the appropriate items to their…

A:

Q: Determine the weight percent (wt%) of selenium in the soil sample and find the absolute uncertainty…

A: Given: To Calculate:  weight percent Se in the soil and the absolute uncertainty in the weight…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.