Chemistry Question

Q: Please help me with my Chemistry assignment. Thanks so much!!

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be onl...

Q: Mrs A is currently taking Mucogel suspension at a daily dose of 10 mL after her three meals andat be...

A:

Q: Referring to the posted calibration curve (image attached) ...A 2.345 g sample of a ruthenium ore wa...

A: Given information: Mass of a sample = 2.345 g Volume of sample = 100.00 mL Absorbance of solution = ...

Q: Prior to hosting an international soccer match, the local soccer club needs to replace the artifical...

A: Given : Length of field = 0.101 Km Width of field = 0.065 Km And cost of turf per m2 = $ 7.00 per m2...

Q: protons are in the nucleus of the following elements

A: (a) Carbon, C Carbon atom has 6 neutrons and 6 protons. It has an atomic mass of 12.

Q: The density of lead is 11.4 g/cm3. Convert the density to lb/ft3. 1 lb = 454.55 g 1 ft = 12 in 1 in ...

A: The density of lead is 11.4 g/cm3 determined in terms of  lb/ft3  in step 2

Q: What is the substance undergoing a chemical or physical change known as?

A: A substance undergoing a physical or chemical change known as reactant. reactant is the substance wh...

Q: The reaction between copper and sulfur is represented by the chemical equation shown below. What is ...

A: Mole=Mass/molar mass  Then mole-mole relationship We will get the answer

Q: An organic chemist isolates a  colorless liquid from a petroleum sample.  She places the liquid in a...

A: Volume of the flask = 196 mL Temperature = 99.1˚C Pressure = 751 mm Hg Calculation of mass of gas: M...

Q: For each chemical reaction listed in the table below, decide whether the highlighted atom being oxid...

A:

Q: I need help with part c. I included the rest of the problem incase additianal info is needed.  Consi...

A: The solubility product constant (Ksp) represents the solubility of products at equilibrium for solid...

Q: A mixture of copper and gold metals that is subjected to electrorefining contains tellurium as an im...

A: Given information: The process through which a metal is refined in the electrolytic cell, in which ...

Q: Consider the following data for the element Z. Determine the number of b) protons, c)electrons and d...

A: Given : There are total 3 isotopes of element Z. Number of protons in isotope 1 = 16  And mass of is...

Q: Explain the role of each of the following: (i) NaCN in the extraction of silver. (ii) Si02 in the ex...

A: Extraction of metals: As metals are found in mines in combined state in ores. It is necessary to ex...

Q: Consider the following data for the element Z. what is a) percent of abudance and average mass (in g...

A: Every atom in periodic table has some atomic mass and atomic number. When atomic number of two eleme...

Q: Calculate the average atomic mass of iron: Isotope: 54Fe; 56Fe; 57Fe; 58Fe Mass (amu): 53.940; 55.93...

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by i...

Q: 3.82g sample of magnesium nitride is reacted with 7.73g of water.  If the reaction proceeds with a 3...

A: Magnesium nitride reacts with water to form ammonia and magnesium oxide.

Q: A truck tire has a volume of 218 L and is filled with air to 35.0 psi at 295 K. After a drive, the a...

A: a.

Q: A laser pointer used in the classroom emits light at 5950 Å, at a power of 4.00 mW. (One watt is the...

A: The expression to calculate the number of photons is given by, Number of photons = Total energyEnerg...

Q: Calculate the density of CO2 gas in g/L at 0.990 atm and 55 Degree celcious..

A: Use ideal gas equation and get the answer

Q: The K of a monoprotic weak acid is 0.00566. What is the percent ionization of a 0.197 M solution of ...

A:

Q: Consider a solution that contains just 0.535 grams of ammonium chloride in 200. mL of water  (recall...

A: The compound given is ammonium chloride i.e NH4Cl. Since the compound is an ionic compound. Hence it...

Q: Name the precipitate that is formed when solutions of Fe(NO3)2 (aq) and (NH4)2S (aq) are mixed. Writ...

A: Precipitation reaction is a reaction in which when the reactants are mixed which are present in aque...

Q: What is the minimum voltage required to drive the reaction?

A: Standard reduction potential can be calculated as follows:  

Q: The electron microscope uses the wave property of electrons to observe very small objects. A moving ...

A:

Q: A 3.82 gram sample of magnesium nitride is reacted with excess water.  Mg3N2 + 3H2O = 2NH3 + 3MgO Th...

A: Number of moles of a substance is equal to the mass of the substance divided by its molar mass.  Wri...

Q: A 5.3 × 10-2 M solution is to be used to prepare a series of five 100 mL solutions of varying concen...

A: So basically, we are diluting the 5.3 X 10-2 M solution, every time taking 10 mL of it. As per the d...

Q: Determine the minimum number of extractions required to ensure 99.9% of the solute is extracted from...

A: q=0.001(99.9 efficiency of extraction) V1=45ml, V2=5ml K=14

Q: A first order reaction has a rate constant of 0.828 at 25 oC and 2.49 at 37.9 oC. Calculate the valu...

A: Write the Arrhenius equation for different rate constants at different temperatures.   lnk2k1=-EaR1T...

Q: On the following two molecules, circle the most basic site on themolecule, and rationalize your choi...

A: Basic site is one which can donate lone pair easily. This site should be less electron-negative and ...

Q: Please help me with my homework assignment. Thanks so much!!

A: In the given molecule the chlorine and isopropyl group are cis to each other and the methyl group is...

Q: I’m stuck with these problem, please show all the steps! Thank you so much! Organic Chem!

A: since you have posted multiple questions. we are entitiled to answer only first question with first ...

Q: what is the volume (in L) of amoxicillin syrup 125 mg/ 5mL required by a child prescribed with 250 m...

A: The amount of amoxicillin syrup given per 5 mL is 125 mg. The amount of amoxicillin given to child i...

Q: The specific heat of urea is 1.339J/g C. If one adds 60.0 J of heat to 10.0 g of urea at 20 C, what ...

A: The mathematical relation that relates the added heat and temperature change is: Q=mc∆T

Q: Calculate the concentration of all species in 0.025 M H,PO, [H,PO,). [H_PO, ], [HPO, ]. [PO,"]. [H,0...

A: Given, Initial concentration of H3PO4 = 0.025 M

Q: Chemistry Question

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want rem...

Q: For each molecular formula, draw all the possible constitutional isomers of alcohols withthat formul...

A: The possible constitutional isomers along with IUPAC name for given alcohols using their given molec...

Q: A delta is formed at the meeting point of sea water and river water. Why?

A: The mixture is called colloidal suspension or colloidal solution, which consists of regularly suspen...

Q: Write an expression for the new temperature of the sample, and (possibly using numerical integration...

A: The new temperature of the sample can be calculated as follows:

Q: What does the upper segment of the NFPA symbol indicate?

A: The NFPA also known as the National Fire Protection Association and these are the symbol pasted on t...

Q: Calculate the volume of 0.309 M sodium hydroxide required tocompletely react with• A. 15.9 ml of 0.1...

A:

Q: For the electronic transition from n = 5 to n = 2 in the hydrogen atom. a) Calculate the wavelength....

A: For the electronic transition from n = 5 to n = 2 in the hydrogen atom. The wavelength of the electr...

Q: An iron bar of mass 479 g cools from 84.0°C to 8.0°C. Calculate the metal's heat change (in kilojoul...

A: Heat capacity is the amount of heat given to the material to change its temperature by unit. Accordi...

Q: Draw the structural formula for each of the following: Phenol Ether a. 3-bromophenol b. hydroquinone...

A: As you not specify so i am giving answer of first 3 questions of phenol and ether.  

Q: Table 2-Initial Molarity Transfer the initial moles calculate in table 1 to the appropriate column ...

A: Using the table 1, we have the initial moles of all the species. Hence taking the initial moles of a...