How many grams of calcium sulfate, CaSO4, are in 0.3 mol? Assume MCaSO4 = 136.1406 g/mol. Question 7 options: a) 136.44 g b) 40.842 g c) 0.00222 g d) 135.84 g The molar mass of sodium chloride, NaCl, is 58.44 g/mol. The molar mass of sodium, Na, is 22.99 g/mol. What is the molar mass of chlorine? Question 8 options: a) 1343.54 g/mol b) 2.54 g/mol c) 35.45 g/mol d) 81.43 g/mol

Q: The volume of blood in the body of a deep sea diver is about 4.90 L. Blood cells make up about 45% o...

A: Total blood in body = 4.90L Volume of plasma liquid = 55 % of blood  = 55 × 4.90 / 100 = 2.695L

Q: 67- g/ Give a reaction mechanism OH EtO,CN=NCO,Et ʼNO2 CH2NO2 PPH3 92%

A: This reaction is  Mistonbou inversion reaction where inversion of a nucleophilic centre takes place ...

Q: Number of electrons generated in the oxidation of 2 pyruvate by pyruvate deheydrogenase complex.

A: Oxidation  of 2 pyruvate by pyruvate dehydrogenase complex  is lead by Krebs cycle. 

Q: Explain how the dichromate-chromate equilibrium shifts in response to an increase or decrease in H+ ...

A: The dichromate and chromate ions are exist equilibrium in aqueous medium. In more acidic medium exis...

Q: A compound contained 4.6g Na, 2.8g N, 9.6g O. Find the empirical formula. (RAM data Na = 22.99, N = ...

A: In empirical formula problem first we determine mole ratio of given atom

Q: reduced?

A:

Q: 22 What class of enzyme catalyzes each of the following reactions? (a) OH CH3CHCO,- CH3CCO,- (b) Он ...

A:

Q: Diethyl ether[(CH3CH2)2O]is an imperfect anesthetic in part because it readily combusts in air to fo...

A: Diethyl ether is an imperfect anesthetic in part because it readily combusts in air to form CO2 and ...

Q: 900. mL of 0.20 % (m/v) NaCl from 6.9 % (m/v) NaCl  what is the initial volume in mL?

A:

Q: Label each substance "acid" or "base", write the products and their charges, and indicate the direct...

A: Acid- The species which is able to donate H+ ion.  Base- The species which is able accept H+ ion. 

Q: 103 The disagreeable odor of fish is mainly due to organic compounds (RNH,) containing an amino grou...

A:  The disagreeable odor of fish is mainly due to organic G compounds (RNH₂) containing an amino group...

Q: Ptyalin is a digestive enzyme found in saliva. It helps break down large starch molecules early in t...

A: Enzymes are the proteins helps in speed or rate of metabolism process.Ptyalin is a digestive enzyme ...

Q: Draw the major organic product of the following reaction. Inorganic byproducts like water or salts d...

A: Organic reactions are those in which organic reactant react to form organic products. 

Q: A 1.912g sample of calcium chloride is decomposed into its constituent elements and found to contain...

A: Given- Mass of calcium chloride=1.912g Mass of Ca=0.690g Mass of Cl=1.222g

Q: Which of the following are typically included in a Pharmacopoeial monograph? I. Tests to confirm the...

A:

Q: NH3, Is made industrially by the Haber process. This is an equilibriur reaction. N2(g) + 3H2(g) =2NH...

A:

Q: The K, for acetic acid is 1.8 × 105. Write the expression for K, for this acid, based on the equatio...

A: Acid dissociation constant ( KA ) is used to determine the strength of acid. Greater the value of KA...

Q: QUESTION 21 A protein sample absorbs 50% of photons when the concentration is 0.2 M. The % of photon...

A: Given data : Protein absorb 50% photons when concentration is 0.2M When concentration is 0.4M then p...

Q: How many liters of a 34 % (m/v) KOH solution would you need to obtain 58.5 g of KOH?

A:

Q: We have a HCl molecule, with H and Cl have atomic mass of 1.0 and 35.5 amu, respectively. The force ...

A:

Q: Calculate the frequency of light in Hertz Hz = s-1  for light with a wavelength of 7.85 x 10-6 meter...

A:

Q: What mass of magnesium contains the same number of particles as there are in 6g of carbon 12

A: Given,  Mass of C = 6g  What mass of magnesium contains the same number of particles as there are in...

Q: Select the chemical equation that represents the most important process impacting pH after Sr(C2H3O2...

A: Sr(C2H3O2)2 is a salt .Thus it dissolved in aqueous solution and ionizes .  

Q: e major product for

A:

Q: How many grams of Fe are produced when 65.0 grams of iron (III) oxide is reacted with 52.3 grams of ...

A:

Q: In a constant-pressure calorimetry experiment, Maria mixed 100.0 mL of 1.00 M H2C2O4 solution and 10...

A:

Q: A solution is made by mixing 45.0 mL of ethanol, C̟H,0, and 55.0 mL of water. ASsuming ideal behavio...

A: Volume of ethanol = 45 mL Density of ethanol = 0.789 g/mL     Mass of ethanol = Volume * Density    ...

Q: Complete the table below for calculating the molar mass of the ionic compound lead(IV) oxide . Numbe...

A:

Q: a) Molecular Equation: Fe(ОH)з H2SO4 +

A:

Q: mountain dew has a pH of 3.3. what is the concentration of H3O+ ?

A:

Q: A compound is found to contain 52.13 % carbon , 13.15 % hydrogen , and 34.72 % oxygen by mass. To an...

A: Answer :-  1) Empirical formula of the compound = C2H6O  2) Molecular formula of compound = C2H6O  -...

Q: Uscharidin is a natural product present in milkweed. It has the structure shown. Locate all of the f...

A: A functional group is an atom or group present in a molecule that determines the chemical properties...

Q: AG°rxn %3D ||

A:

Q: 2.}5 mL of nitric acid, HNO9, are required to react with 50 ml of a 1.25 M Barium hydroxide, Ba(OH2 ...

A: We know that, Molarity = (Number of mole of solute) / (Volume of solution)  At equivalent point, No ...

Q: To resolve the Na D lines 591.0 and 591.5 nm, what resolution is required if this is first order?

A: The resolving power of first order monochromator can be calculated as

Q: B: Define the coordination number and its value for BCC unit cell.

A: BCC: body centred Cubic unit cell.  The structure and coordination number explained below. Coordinat...

Q: What is/are the productis) of the following acid-base mechanism? (CHa),NH OCH, + (CH,NH Li OH (CH3)N...

A: In an organic reaction mechanism, a curved arrow represents the transfer of electrons. In an organic...

Q: What is the energy (in kJ) of 3.00 moles of photons of visible light, that all have a wavelength of ...

A: Given mole = 3 

Q: Cyclopropane, C3H6, is converted to its isomer propylene, CH2=CHCH3, when heated. The rate law is fi...

A:

Q: Given the activity series, predict which of the following will react with the cobalt ion, Co2+. Elem...

A: Given activity series is : Predict which of the following react with cobalt ion, Co2+ = ?  A). Ni  ...

Q: Consult E Table 5.1 and classify each nitrogen-containing functional group in the anesthetic lidocai...

A:

Q: 7.11x +.15 =.975-2 7 Calculate the equilibrium concentrations of all species if 3.000 moles of H2 an...

A:

Q: Q: What are the solutions, explain it?

A: The solution is the homogeneous mixture of two or more substances.  

Q: to deprotonate th

A:

Q: If the concentration of [OH-] in a solution is 10-7 M, the pH of the solution is ________, and there...

A:

Q: You have the following polypeptides at pH 7.25 and are attempting to separate them using an anion ex...

A: For an amino acid residue,    If pKa > pH, the ionizable group remains in its protonated state. ...

Q: ENERGY

A:

Q: How many grams are needed to prepare a 5,067 g of CaCl2 of 6 % solution? (Type your answer with the ...

A:

Q: What disulfide is formed when the thiol is oxidized? Draw it.

A:

Q: .Calculate the degree of reduction for NH3 and N2 on both an NH3 basis and an N2 basis (write units)...

A: In a chemical reaction that involves electron transfer, one of the species gains electrons while the...

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.