Ca(OH)2(s)+H2S(g)--->CaS(s)+2H2O(l) In the reaction above, calcium hydroxide and hydrogen sulfide react to form calcium sulfide and water.  If you combine 11 g of hydrogen sulfide with 15 g of calcium hydroxide: 1) Which reactant is limiting?      calcium hydroxide or hydrogen sufude 2) Calculate the number of moles of calcium sulfide produced if the percent yield is 100%.       [_______]  mol CaS

Q: If more ammonia, NH3 is added to a buffer of ammonia-ammonium ion, is the solution still the buffer…

A: Buffer system consist of weak acid and its conjugate base or a weak base and its conjugate acid .In…

Q: (CH3)3COH is reacted with CH3-O-C--C6H5 in a transesterification reaction. What is the M* of the…

A: Transesterification is a chemical reaction that involves the exchange of ester groups between an…

Q: For the reaction 3 КОН+ H, PO-K, PO + 3H,O how many grams of potassium phosphate, K3PO4, are…

A: Molar of KOH = 56.11 g/molMolar mass of K3PO4 = 212.27 g/mol

Q: The substance HCI is seen to be a stronger acid than the substance H₂S. acid Submit Answer H₂S HCI…

A: Two acids are given H2S and HCl Disacoation constant,H-A bond energy have also been given and there…

Q: 11. What is the relationship? Br me- * Et H Br

A: we have to find the relationship between two molecules.

Q: CH2CH3 5. Cl2 hv +

A:

Q: What should be the spin and parity for the ground states of the following nuclei ? a) 23Ca b) 22Mo…

A: Spin refers to the intrinsic angular momentum of a particle, and it can have values of either…

Q: For the following second order reaction, the rate constant is 0.0705.  If [A]0 = 8.22, calculate [A]…

A:

Q: Consider 0.10 M solutions of the following compounds: Sr(OH)2, Ca(OCl)2, FeCl3, Ca(C3H5O3)2, and…

A: Sr(OH)2 is a strong base and will have the highest pH. Ca(C3H5O3)2 is a weak base and will have a…

Q: Calculate the unsaturation number for the chemical formula given below. The compound only contains…

A:

Q: Give detailed Solution..give correct answer please

A: Compare the solubility of lead fluoride in the given solution.

Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas…

A: The width of cylindrical vessel = 51.0 cmThe height of cylindrical vessel = 61.2 cmThe maximum safe…

Q: A 1.458 g primary-standard grade Na2CO3 (MW = 105.99 g/mol) was used to standardize an HCl solution.…

A: Sodium carbonate reacts with hydrochloric acid to form sodium chloride, carbon dioxide gas, and…

Q: Be sure to answer all parts.   How many moles are contained in each number of grams of fructose…

A: We have to calculate the number of moles of fructose in a given mass, Using the formula are…

Q: Review link 18 A0.57-mg sample of nitrogen reacts with chlorine to form 4.897 mg of the chloride…

A:

Q: The mass of the Na2CO in the test tube after the reaction in part A of the experiment is 0.7825 g.…

A: The theoretical yield of a reaction corresponds to the mass of the product produced by the limiting…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: 1 KJ = 1000 J 1 KJ = 103 J

Q: A 70.0-kgkg person had a quarter-pound cheeseburger, french fries, and a chocolate shake. Item…

A: Energy values for three food types are given.

Q: If 1.3618 moles of AsF3 are allowed to react with 1.0000 mole of C₂Cl6, what would be the…

A: Given a reaction : 4 AsF3 + 3 C2Cl6 → 4 AsCl3 + 3 C2Cl2F4 If 1.3618 moles of AsF3 allowed to react…

Q: From electromotive cell measurements at 435°C the following equation has been found activity…

A: activity coefficient of zinc in cadmium-zinc alloys: ln γZn = 0.87(1 -NZn) 2 - 0.30(1-NZn) 3Activity…

Q: Assume that the complete combustion of one mole of glucose, a monosaccharide, to carbon dioxide and…

A: Heat of combustion is the heat released when one mole of a compound undergoes complete combustion or…

Q: The Solubility Product Constant for silver sulfite is 1.5 x 10-14 The equilibrium concentration of…

A: The solubility product constant (Ksp) for silver sulfite (Ag2SO3) is 1.5 × 10-14. The equilibrium…

Q: The enzyme chymotrypsin catalyzes the hydrolysis of a peptide containing phenylalanine. Using the…

A: For the given data of enzyme catalysis of a peptide containing phenylalanine, we have to find the…

Q: 1. PCC, CH₂Cl₂ 2. Li 3. ~ Br

A:

Q: 2.2 One ring of phenyl benzoate undergoes electrophilic aromatic substitution much more readily than…

A: Aromatic compounds undergo electrophilic substitution reaction because benzene is an electron rich…

Q: Give an IUPAC name for the following alkyl halides. ball & stick labels ball & stick labels (It is…

A: Here ball and stick model of two organic compounds are given.We have to determine the IUPAC name of…

Q: The heat of vaporization AH, of propane (C3Hg) is 19.4 kJ/mol. Calculate the change in entropy AS…

A: For vaporization: Change is entropy  = enthalpy of vapourization ÷ Boiling pointChange in entropy =…

Q: 13. Which compound has four distinct signals in its 3C NMR spectrum? لا بايد I II III IV Br >

A:

Q: Solid sodium chromate is slowly added to 75.0 mL of a 0.0331 M lead nitrate solution. The…

A:

Q: A 0.117 mol sample of neon gas has a volume of 826 milliliters at a pressure of 4.97 atm. °C. The…

A:

Q: Which compound would produce the given ¹H NMR spectrum below? O of A. B. ли PPM C. HO D. E.

A:

Q: Calculate the concentration in mol/L of the chemist's silver per mol/L X Ś

A:

Q: If acid C has a smaller Ka value than acid D, which acid is stronger?

A:

Q: 5.3 Draw the mirror image of each compound. Label each molecule as chiral or achiral. H Br CH3 CH3…

A: we have to draw the mirror image and find the molecule is chiral or achiral.A molecule or ion is…

Q: What is the oxidation level in the molecule below? Type in the number: 1, 2, 3, etc. I CH3 CH₂-CHCH3

A:

Q: A 1.458 g primary-standard grade Na2CO3 (MW = 105.99 g/mol) was used to standardize an HCl solution.…

A:

Q: Choose the best option for the precursor needed to make the vicinal dibromide. CI H3C. CI Br Br

A: Retro synthesis is the chemist way of synthesising organic molecules, which involves the various…

Q: The hydronium ion concentration in an aqueous solution at 25°C is 2.8x10-² M. The hydroxide ion…

A: The pH of the solution is the negative logarithm of the hydronium ion concentration.

Q: A 30.00 mL of 0.125 M NaOH solution is titrated with a standard 0.250 M HCl solution. Calculate the…

A: The reaction involved in the titration of sodium hydroxide (NaOH) with hydrochloric acid (HCl) can…

Q: 12. How many signals would you expect to find in the 13C NMR spectrum of the compound sho

A: 13 C NMR spectroscopy is useful to determine types of carbons, their splitting, signals etc hence we…

Q: 19.A compound with molecular formula C7H₁402 displays the following IR, 1H NMR and 13C NMR spectra.…

A: Molecular formula = C7H14O2

Q: Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the…

A: Salt is a neutralization product of acid and base. These are strong electrolytes which dissociates…

Q: After a solution is mixed, it initially contained 0.500M HONH₂, 0.400M HONH₂ and 0.100M NaOH. What…

A: The concentrations of NH2OH = 0.5 (M) and 0.4 (M).Concentration of NaOH = 0.1 (M)

Q: Consider the reaction.   A(aq)↽−−⇀2B(aq)?=8.59×10−6 at 500 KA(aq)⁢↽−−⇀⁢2B(aq)⁢�=8.59×10−6 at 500 K…

A:

Q: Select all of the true statements below. Water's phase diagram is special because the slope of the…

A: We have to identify the true facts among the given options.

Q: Write the complete electron configuration for the following elements: a) Arsenic (do not use rare…

A: Aufbau principle: It states that electrons are filled in the orbital in the order of increasing…

Q: STARTING AMOUNT How many moles of hydrogen are in 3.06 x 10 of glycine, CHNO,? ADFACTOR CJANO, 2…

A:

Q: Determine if the carbocation below is expected to undergo a rearrangement. Write NR if no…

A: Given carbocation:In this carbocation, the positively charged carbon atom is directly bonded to two…

Q: Determine the relationship between Structure A and Structure B in each row of the table. H Structure…

A:

Q: ot + HBr The charge is missing on the carbocation. The arrow showing the loss of bromine is pointing…

A: The reaction is substitution reaction where -Br atom substitute by -OCH3 group .

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.