Consider a drop of Mercury. A chemist obtained its mass from which she showed that the drop contained 0.003390 moles. What mass did she find

Q: Let's Find Out: The gas molecules and their category Let's Do It This Way: Identify the gas molecule…

A: A question based on properties of gases that is to be accomplished.

Q: What is the process of altering the shape of a protein without breaking the amide bonds that form…

A:

Q: . In 2D, draw all possible arrays of lattices. State exactly how the lattice constants and angles…

A:

Q: Consider an electron confined to a 2-D ring of radius 0.9440 A. What wavelength of light is absorbed…

A:

Q: Suppose a 250. mL flask is filled with 1.9 mol of Br,, 1.8 mol of BrOCl and 1.6 mol of BrCl. The…

A: Given: The volume of the flask is 250 mL The number of moles of Br2 is 1.9 mol The number of moles…

Q: formula CH40. Determine a structure to each pair of spectra and assign each H and C. Carbon spectrum…

A:

Q: What is the energy (in kJ) of one mole of photons associated with radiation that has a frequency of…

A:

Q: What is the formula of the coordination compound containing cation [Co(NH3)5H2O]*+3 and the anion…

A:

Q: QUESTION 9. Human lungs can absorb 8 gm 0, per hour by respiration. If all oxygen atoms are…

A: The amount of oxygen taken by the lungs in one hour is 8 grams, and the molecular formula of the…

Q: In the following reaction, which only goes from left to right, which species is being oxidized?…

A: In the following reaction, which only goes from left to right, which species is being oxidized?  2K…

Q: What volume of 3.99 M H2SO4 is needed to obtain 4.61 mol of H2SO4?

A: Given, Molarity of H2SO4 solution = 3.99 M = 3.99 mol/L moles of H2SO4 = 4.61 mol Volume of H2SO4…

Q: An object that has a mass of 75 g is heated from 50°C to 93°C. If it takes 3000 J for the…

A: Given: Mass of object = 75 g Initial temperature = 50°C Final temperature = 93°C Heat required =…

Q: 3. Would you want to use a material with a high or low specific-heat to make a lunch box that will…

A: We would use a a material with high specific heat to make the launch  box .

Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. (CH3)2CHNH2, Na(CN)BH3, pH…

A: The given reactions are examples of reductive amination reactions. In the reductive amination…

Q: Colour of phenolphthalein indicator in basic solution is pink. a) b) F Select one: O True O False

A: Phenolphthalien is a colourless weak acid that is widely used as an indicator in titration…

Q: 1. The relationship between volume and pressure. 2. A gas law that is mathematically expressed as P…

A:

Q: Q.5. What substance is present if the FeCl, test gives a purpie color? Which sample is the most…

A:

Q: oxidizing agent is:

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: How many unique protons are present in each of the following compounds? НО. CI 03:58:43 II III еВook…

A: The concept of equivalent or unique protons is generally used in spectroscopic studies of any…

Q: 1. Which one of the following is an example of week electrolyte? 1. NaOH 2. Naci 3. CH3COOH 4.…

A: here we are required to classify the given compounds as weak and strong electrolyte

Q: O…

A: The given cations are Ca2+ and Pb4+ The given anions are Cl- and O2-    The ionic compounds are…

Q: An ion has 28 protons, 24 electrons, and 30 neutrons. What is its ionic charge?

A:

Q: What volume of 0.333 M Al(NO3)3 is needed to obtain 26.7 g of Al(NO3)3?

A: Given:: Molarity of Al(NO3)3=0.333 M mass of Al(NO3)3= 26.7 g molar mass of Al(NO3)3= 213 g mol-1…

Q: What is the oxidation number of the central ion in the coordination compound K4[Fe(CN)6] ? O a. 0 O…

A:

Q: One of the key components in fatty acid synthesis is acetoacetyl‑ACP, which is formed from a Claisen…

A:

Q: 2.) Design a reasonable synthesis for the following transformation. В.

A:

Q: 7. Predict the major organic product(s) of the following reactions. Include any relevant…

A: We have to draw the structure of the major products of the given organic reaction.

Q: Calculate the pH at 25 °C of a 0.53M solution of ethylammonium bromide (C,H,NH,Br). Note that…

A: Given-> Concentration of C2H5NH3Br = 0.53 M pKb = 3.19

Q: Would you want to use a material with a high or low specific heat to make a pan to cook food…

A: Q = m C ∆T  Q = symbol of heat transfer(J)  C = specific heat  It is the amount of heat necessary to…

Q: Consider an electron confined to a 2-D ring of radius 0.9440 A. What wavelength of light is absorbed…

A:

Q: Reaction !3D • PbClh(s) 2 Pb2*(aq) +2 CI(aq) Fe(OH),(s) = Fe2*(aq)+ 2 OH (aq) CaCO3(s) 2 Ca"(aq) +…

A: Given the Ksp value of PbCl2(s) = 1.6*10-5   Q value = 1.0*10-4

Q: At what substrate concentration would an enzyme with a kcat of 30.0 s-1 and a Km of 3. (а) 0.0050 M…

A:

Q: Deduce the most likely alkyl halide that will undergo elimination reaction and produce the following…

A: We have to give the structure of the alkyl halide that will undergo an elimination reaction and…

Q: 2. Find the value of Q and determine which direction the reaction will shift in order to reestablish…

A: Answer: Given chemical equation is: HCl(g)+NaOH(aq)↔NaCl(aq)+H2O(l) Given data:…

Q: 17. A substance that dissociates into lons in water is called a(n)- nonelectrolyte electrolyte…

A: Electrolytes :- A substance in aqueous or molten form dissociate into ions and can conduct heat and…

Q: An atom with 2 electrons, 2 protons and 4 neutrons has an atomic number of ...

A: Given -> Number of electrons = 2 Number of proton = 2 Number of neutron= 4

Q: 8. Indicate whether the following statements are True or False: a. The common name for the elements…

A:

Q: You are given the following information. acid Ка HF 7.2X10-4 HC2H302 1.8× 10-5 HCIO 3.5X 10-8 HCN…

A: Answer: In this question we have to find out equilibrium constant values of given reaction and on…

Q: Which are soluble and insoluable and why

A: Solubility of salt can be determined using the solubility chart or rules. Type of cation and anion…

Q: Classify each aqueous solution as acidic, basic, or neutral at 25 °C. Acidic Basic Neutral Answer…

A: At 25°C ;  pH + pOH = 14.0 pH = -log[H+]  pOH = -log[OH-]

Q: Which of these compounds would exist primarily in an enol form? OA. OB. OC. D. OE.

A: Keto enol tautomerism is a type of structural isomerism. A chemical equilibrium between the keto and…

Q: Define ‘periodic motion’. Why do you think we had a chart called the Periodic Table?

A: The motion which repeats itself in regular intervals of time is termed as periodic motion.Examples…

Q: Why does a solid form at the interface of the two solutions?   PROCEDURE Synthesis of Nylon In a…

A: Given that, the synthesis of Nylon-6,10. We have to tell why the solid polymer formed at the…

Q: Determine the concentration of a 25.00 mL NaOH solution if it was titrated to endpoint by using…

A:

Q: Supplemental Question Q8 (to be answered under section C) Regarding your answers in the fifth column…

A: A question based on equilibrium concept that is to be accomplished.

Q: reaction. (Table 1)Fill in the table to determine the order of a reaction given to these data and…

A: A question based on kinetics of reaction in solution that is to be accomplished.

Q: 1. a. Determine the [OH−][OH−] , pH, and pOH of a solution with a [H+][H+] of 8.8×10−9 M8.8×10−9 M…

A:

Q: What is the oxidation number of manganese in KMnO4? 0 +3 -2 +7

A: Answer: Oxidation number of an element in a compound or ion is the charge it carries over it.

Q: Write the sequence of the complementary strand of each segment of a DNA molecule. a. 5'-GTCGGCT-3'…

A: Complementary base pair in DNA molecule are A & T and G & C . To find out complementary…

Q: Give  a mechanism for the following  Copper-mediated Chan-Lam coupling of aryl boronic acids and…

A: Here Cu acts as catalyst of the reaction where B acts as co- catalyst of the reaction.  Here urea…

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.