NaOH

Q: What is the pH of a buffer made from 0.220 mol of HCNO (Ka = 3.5 × 10⁻⁴) and 0.410 mol of NaCNO in 2...

A: Given : Moles of weak acid HCNO = 0.220 mol. Moles of conjugate base salt of weak acid i.e NaCNO = 0...

Q: The reusable booster rockets of the space shuttle use a mixture of aluminum and ammonium perchlorate...

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Q: Directions: Complete the data table below. It is not necessary to construct any models. Chemical Val...

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you ar...

Q: found to be 444 kg. The bottom stream product has mass fraction of A equal to 70%. What is the mass ...

A: Answer: Mass of A in top product is 161.7600 kg

Q: electron formula Lewis Dot groups/ orbital molecular bond bond polarity valence e Structure lone pai...

A: Answer is given below :

Q: Im just on 6th grade pls answer the question simple. Thank u so much hope u could help me thank you ...

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for...

Q: The pH of a solution containing a [H3O+] = 3.40 x 10 negative 5 M, is:

A: pH is a scale to measure the concentration of hydrogen ions. The negative logarithm of hydrogen ion ...

Q: What is the molarity of a 3.468 molal solution of iron(III) chloride with a density of 1.365 g/mL?

A: Given: The molality of iron(III) chloride is 3.468 m The density of iron(III) chloride is 1.365 g/mL...

Q: synthesis of banana oil

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Q: A voltaic cell using Pb²⁺/Pb and Ni²⁺/Ni half-cells is set up at standard conditions, and each compa...

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Q: Tartaric acid and malic acids are diprotic acids.  How many moles of NaOH are needed to neutralize 1...

A: Tartaric acid and Malic acid are diprotic acids. They have two acidic protons. One mole of NaOH can ...

Q: 3. If K = 78.0 for the reaction %3D A(s) + 2 B(9) E→ 2 C9) and initially there are 5.00 moles of A a...

A: Equlibrium constant(Kc) : It is equals to ratio of concentration of products and concentration of  r...

Q: A sample of gaseous oxygen is heated with an electrical coil. If 148 Joules of energy are added to a...

A: Added energy       Q = m × S × ∆T  Where       Q = 148 J (energy added to oxygen)       m = mass of ...

Q: Nitric acid can be prepared by bubbling nitrogen peroxide into water. How many moles of H+ are obtai...

A: Given : Nitric acid i.e HNO3 is producing by bubbling nitrogen peroxide i.e N2O5 into water i.e H2O....

Q: What is the maximum concentration of Ni²⁺ that can be added to a 0.00900 M solution of Na₂CO₃ before...

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Q: q 4 chem hw

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Q: How many grams of iron are needed to completely consume 11.7 L of oxygen gas according to the follow...

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Q: Water is a polar molecule because (choose one)... A) the hydrogen atoms only have one electron each ...

A: The structural formula of water is given as shown below:

Q: Can you answer number 2?

A: Oxidation reaction is a reaction in which the oxidation state of an element is increased by loss of ...

Q: what is the solute and solvent of CoCl2 • 6H2O / H2O ?

A: A solution is a mixture in which two more or more substances are added and are allowed to mix. The c...

Q: Show the calculation of effective atomic number (EAN) for the complex below. Please explain the oxid...

A: The compounds  in which the metal atom/ion is surrounded by other atoms, ions or molecules through c...

Q: Calculate the number of methane molecules at 298 K and 1 torr that strike a 1.0 cm^2 surface in one ...

A: The  Methane is gas  so for the calculation of  Number of methane molecules ideal gas equation is us...

Q: The compound oxygen difluoride is quite reactive, giving oxygen and HF when treated with water: OF2(...

A:  ΔHrxn = Σ (bond energies of broken bonds) -  Σ (bond energies of bonds formed)Given that,ΔHrxn = -3...

Q: What is the minimum temperature and pressure required for the CO2 to become supercritical?

A: Supercritical fluid / substances- A substance above its critical point were it doesn't exist distin...

Q: A typical unit for atmosphere pressure is "atmosphere" or "atm". One (1) atm is equivalent to 760. m...

A: Given, 1 atm =760 mmHgwe are asked to convert 0.822 atm pressure in unit of mm Hg

Q: If 1.00 kg of ammonium nitrate is sealed into a 50.0 L steel drum and heated to 787 degrees Celsius,...

A: Given : Mass of ammonium nitrate i.e NH4NO3 = 1.00 Kg = 1000 g Volume of flask = 50.0 L Temperature ...

Q: The compound oxygen difluoride is quite reactive, giving oxygen and HF when treated with water: OF (...

A: Data required,∆Erxn=-318kJBond energy of O-H=467kJ/molBond energy of O=O=495kJ/molBond energy of H-F...

Q: A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 68 J ...

A: The process happening on the system is of two steps given as,  

Q: (11) A student determines the calcium content of a solution by first precipitating it as calcium hyd...

A: Given data,Molarity of Ca(NO3)2=0.531MVolume of Ca(NO3)2=34.0mL=0.034L

Q: Kc = 64 for the reaction N2(g) + 3H2(g)  2NH3(g) at a certain temperature. Suppose it was found that...

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Q: a) The average pH of normal arterial blood is 7.40 at 37° C. Calculate [H] for blood at this tempera...

A: a) Given : pH of blood = 7.40   

Q: Problem Solving Water produces Hydrogen gas and Oxygen gas when subjected to electrolysis. Step 1. C...

A: Water -> Hydrogen gas + Oxygen gas

Q: Problem Solving   2Cu      +       S     --->  Cu2S   How many moles of S are needed to react wi...

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Q: What volume of a 0.186 M perchloric acid solution is required to neutralize 26.1 mL of a 0.180 M bar...

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Q: For cyclohexane, the ∆H° of vaporization is 33.10 kJ/mol and the ∆S° of vaporization is 111.80 J/mol...

A: Given : ∆H° = 33.10 KJ/mol = 33100 J/mol                                                    (since 1...

Q: Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel...

A: Given: Heat of combustion of ethanol =  326.7 kcal/mol. Mass of 2-Methylhexane = 446 grams Molar mas...

Q: Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels.The heat of comb...

A: The question has two subparts: First, we need to write the Chemical Equation for the Combustion of ...

Q: The orders of reaction are often not the same as the stoichiometric coefficients because: (select on...

A: The order of a rate law is the sum of the exponents of its concentration terms. For the reaction: aA...

Q: What is the pH of a solution if the concentration of H+ is .000284

A: Given :  Concentration of H+ = 0.000284 Therefore [H+] = 0.000284  

Q: In each of the following reactions, identify which element is being oxidized and which is being redu...

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for...

Q: Find the mass (g) 35.4 ml of 0.399 M FeCI3

A: Given : Concentration of FeCl3 = 0.399 M And volume of solution = 35.4 mL Since 1 L = 1000 mL  

Q: Write the charge balance equation for a solution containing water, hydrogen ion, hydroxide ion, chlo...

A: given,  Charge balance equation for water, hydrogen ion hydroxide ion chlorate ion cyanide ion magne...

Q: How can i solve this exercise?

A: Given: Frequency(?) = 1.8 × 1015 s-1  Work function(Φ) = 5.9 × 10-19 J Energy exiting electron have ...

Q: Calculate the enthalpy change for the reaction:  3NO2(g) + H2O(ℓ) ---> 2HNO3(aq) + NO(g)   Given...

A: The reactions given are, 1) 2 NO (g) + O2 (g) ------> 2 NO2                                      ...

Q: You wish to make a 0.399 M nitric acid solution from a stock solution of 6.00 M nitric acid. How muc...

A: The process of dilution is defined as the process in which a solution with a lower concentration is ...

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.