HCI

Q: Glycogen... O is a polymer of nucleotides O is a polymer of sugar monomers is a peptide polymer is a...

A: Glycogen is a complex bio-macromolecule in the form of which the reserved food material is stored in...

Q: How many moles are equal to 2.4x1024 atoms of Cu?

A: Given data: Number of atoms of Cu = 2.4×1024 atoms Avogadro's number = 6.022×1023 atoms  

Q: Ices] A 21.0 g sample of pure iron at 85 °C is dropped into 66 g of water at 20. °C. What is the fin...

A: The given problem can be solved by using the formula given below as; mironCiron∆T = mwaterCwater∆T  ...

Q: If the pH of a solution Is 6.7, the [H*]=, 2 x 107 5 x 106 8 x 107 5 x 107

A: we know that pH is defined as the -log[H+] Here pH=6.7

Q: Balance the following redox equations by the ion-electron method. b. Bi(OH)3 +  SnO2-2 →  SnO2-3 + B...

A: Given reaction: Bi(OH)3 +  SnO2-2 →  SnO2-3 + Bi To balance the given redox equation by the ion-elec...

Q: Which of the ten reactions in glycolysis area. phosphorylations? b. isomerizations? c. oxidations? d...

A: Phosphorylation - It is a process in which the addition of the phosphate to an organic molecule take...

Q: 2 Fe203 (s) + 3 CO (g) > 3 CO2 (g) + 2 Fe (s) How many grams of carbon monoxide are needed to react ...

A: 2 Fe2O3(S)   +  3 CO (g)   →  3CO2   (g)  + 2Fe(s)  3 mole of CO produces 2 mole of Fe.

Q: An unknown organic compound is 54.5% carbon, 9.2% hydrogen and 36.3% oxygen by mass. What is the emp...

A: Steps to calculate the empirical formula :1. Convert the percentage to grams.2. After that, divide a...

Q: Why the concentrations of buffer components must be high to minimize the change in pH from addition ...

A: A buffer solution or pH buffer  is an aqueous solution consisting of a mixture of a weak acid and it...

Q: How many moles of NH₃ can be produced from 2.55 moles of nitrogen in the following reaction: N₂ (g) ...

A: Chemical reaction: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) Given data: Moles of Nitrogen = 2.25 mol. To calcul...

Q: Q 36

A: The mole is the unit of measurement for amount of substance in the International System of Units. Wr...

Q: How much heat (in kJ) is absorbed in the process of making 0.771 mol of CF₄ from the following react...

A: Given: no of moles od CF4 =0.771 mol The given reaction is:  C (s) + 2 F₂ (g) → CF₄ (g)        ∆H° =...

Q: 3. The freezing point of a solution that contains 1.00 g of an unknown compound is dissolved in 10.0...

A: Freezing point depression - It refers to the lowering of the freezing point of the solvent when a no...

Q: Determine the mean free path, in meters, of argon atoms in a pure sample at 25 degrees Celsius and 1...

A: Given that, temperature = 25 oC = 25+273 = 298 K pressure = 1 atm collision frequency = 5.98×109 co...

Q: How many grams are needed to create 400.0mL of a 0.500M solution of sodium chloride (NaCI)? 11.7 g 0...

A: Molarity of the solution is equal to the number of moles of solute present in one liter of the solut...

Q: Chemistry Question

A:   According  to our guidelines we will solve only 1 question Please resubmit a new question specifyi...

Q: A 3H nucleus decays with an energy of 0.01861 MeV. Convert this energy into (a) electron volts; (b) ...

A: Conversion is done to change the given unit to the desired unit by multiplying or dividing with the ...

Q: Write       C if Statements a and b are correct                  H if both statements are incorrect ...

A: pH is the negative logarithm of hydrogen ion concentration. It is used to measure the acidity of an ...

Q: Iridium (Ir) has a face-centered cubic unit cell with an edge length of 383.3 pm. What is the atomic...

A:

Q: Octane, C8H18, can be used as a representative compound for gasoline.Calculate the mass of carbon di...

A: Combustion of hydrocarbon is chemical change in which hydrocarbon reacts with oxygen gas to produce ...

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 23.5 L?

A: To solve this problem we will use Ideal gas equation which is given below as PV = nRT  Where,  P= pr...

Q: How many asymmetric carbon atoms are present in D – (+) glucose?

A: An asymmetric carbon atom is that carbon which is attached to four different groups.

Q: Q12

A: 12. Given information, Mass of water = 200.0 g Temperature change = 25.000C to 100.00C Csp = 4.184 J...

Q: the shape and the material of the prism the shape of the prism and the material of the light the spe...

A: White light when encounters a prism, it bend and form VIBGYOR.  

Q: Show your work please, thank you!

A: Bronsted-Lowry theory is used to show interaction between an acid and a base through transfer of pro...

Q: What compound is formed when alanine is transaminated?

A: The process by which an amino group is reversibly transferred from an amino acid to an alpha-keto ac...

Q: Select all that is true for thermochemical equations.   A. If the coefficients in a balanced e...

A: Enthalpy change of the reaction is equal to the difference in the enthalpy change of products and re...

Q: snip

A: The ionic product of calcium phosphate can be determined as follows: I  =  Ca2+3PO43-2I  =  10-93 × ...

Q: Chemistry Question

A: Bond order is the measure of the bonds present in the molecule. There can be single, double, or trip...

Q: Solve the following problem: How many liters of a 2.50M solution of NaOH are needed to completely ne...

A: Given: [NaOH] = 2.50 M Vol of H3PO4 solution = 1.5L [H3PO4] = 0.750M The balanced equation:   To fi...

Q: Nitric acid is produced from nitrogen monoxide (NO), which in turn is prepared from ammonia by the O...

A:

Q: A Moving to the next question prevents changes to this answer. estion 2 What is the pH of the soluti...

A:

Q: Consider the generic chemical reaction:A + 2 B---->CHow many moles of C are formed upon completer...

A: Given: The chemical reaction is as follows. A + 2B → C

Q: Question 1

A: Given data: Mass of the organic compound = 0.500 g. Mass of CO2 = 0.733 g. Mass of H2O = 0.299 g. To...

Q: Plz all solve thank you

A: Term symbol: The term symbols are used to designate the electronic configuration, resultant angular ...

Q: If the [OH-] of a solution is greater than [H+], the solution is acidic basic neutral ahove

A: Solution- We know that in the solution [OH-] ions show the basic of the solution. And H+ show the ac...

Q: Which of the following is a diprotic acid? O HC2H3O2 O H2SO4 O H3PO4 O Ba(OH)2

A: Acids: The chemical substance which has a tendency to lose H+ions is called an acid. Depending upon ...

Q: Label each cyclohexane as chiral or achiral. Choose the correct match for each

A: Note: Since  you have posted question with multiple parts, we will solve only first part for you. To...

Q: 400.0 mL of a 0.455 M solution of NaCl is diluted to 900.0 mL. What is the new concentration of the ...

A: Given that: volume of NaCl, V1 = 400.0 mL molarity of NaCl, M1 = 0.455 M diluted volume of NaCl, V2...

Q: You milk a cow in minecraft, and a mod you installed shows you that it has a pH of 5.60. (that is od...

A: Given that  pH of milk = 5.60 Relation between pH and pOH is pH+pOH=14

Q: Copper (I) compounds undergo disproportionation. Write the chemical equation for the reaction involv...

A: A disproportionation reaction is defined as the reaction in which a single chemical species undergo ...

Q: ncluding the A0 portions for individual atoms or ions), using

A: Mot diagram also depend upon electronegativity . If the electronegativity is more then it show lower...

Q: 21. Platinum metal is used as a catalyst in the decomposition of NO(R) Into N,(g) and O,(g). A graph...

A: The given decomposition reaction represents heterogenous catalysis. In such type of catalysis, the c...

Q: How many grams of chlorine gas can be produced from the decomposition of 73.4 g. of AuCl3 by this re...

A: The formula used for calculating the number of moles is as- no. of moles (n)= massmolecular weight  ...

Q: What is the molar mass of Copper (1I) Nitrate, Cu(NO3)2? O 93.56 g/mol O 172.56 g/mol O 125.56 g/mol...

A: The question is about to find the Molar Mass of Copper (II) Nitrate -

Q: specify the geometry of the alkenes [cis, trans, E, Z and NA (not applicable)] for the compounds sho...

A: Isomer are those compounds who have same molecular formula but different structural formula. It is d...

Q: COMPLETE THE MECHANISM AND DRAW ATLEAST TWO FORMS FOR THE WHELAND INTERMEDIATE.

A: The hydrogen atom which is present in the aromatic ring is replaced by the electrophile is known as ...

Q: Predict the products of a reaction between iron (II) nitrate and sodium phosphide. FeNa and PNO3 O F...

A: Interpretation -  To predict the product of a reaction between iron(II) nitrate and sodium phosphide...

Q: DEMOSTRATE THE MECHANISM FOR THE REACTION

A: The above reaction proceeds through a two step mechanism. At first step the bolu hydride group trans...

Q: Ammonia reacts with oxygen according to the equation:

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system an...

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.