Determine the formula weight of Ca(NO₃)₂. Provide an answer to two decimal places.

Q: Calculate the number of grams of F in 4.65 grams of copper (ll) fluoride

A: We have given that  Calculate the number of grams of F in 4.65 grams of copper (ll) fluoride

Q: Zn+ 2Au(CN)2 → Zn(CN)4+ 2Au What mass of gold would you expect to recover from 2.50x105 gr

A: Zn+ 2Au(CN)2 → Zn(CN)4+ 2Au2 mol  Au(CN)2 produces  2 mol Autherefore,2 g ×Au(CN)2 produces = 2 g…

Q: Q1/ How many molar masses are contained in 1- 5.76 g of KI ?( Atomic mass K=39, l=127) 2-4.00 liter…

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Q: + 0=C=0 OH 5. O3 then Zn, H30*

A: The starting material for the given reaction can be determined as follows:

Q: This is an impossible formula. If it were real, determine the percent abundance of N. C₁H₂N2…

A: given, formula = C1H2N2 Molar mass of C1H2N2 = 1×12.01 g/mol + 2×1.01 g/mol + 2×14.01 g/mol = 42.05…

Q: AB4(g) + 2 B2C(g) ⇌ AC2(g) + 4 B2(g) Kp = 21/62500

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Q: Predict the sign of ΔS for

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Q: Calculate the mass percent of Zn in ZnO.  Report your answer to 1 decimal place.

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Q: Ca(NO3)2 (Ca2*) k. White Na2CO3 (CO32") 1. NR Na2s (s2) NaOH (OH-) m. White n. NR Na2SO4 (SO42")…

A: The net ionic equation is expressed as the number of ions should be same in both the side.

Q: Diamonds are made of pure carbon. How much does a diamond weigh if it is composed of 1.06x1023…

A:

Q: (a) 2CH4(g) + 2CO2(g) CH4(g) + 2H0(g) + 2CO (g) (b) CO2(g) + 3H;(g) → CH;OH(g) + H2O(g) (c)…

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Q: The weight percent of silicon in six different rock samples, each containing different amounts of…

A: Solution

Q: Br Method 1: 1) t-BUOK 2) H30 3) PCC 4) MeMgBr 5) H2O 6) PCC Method 2: 1) NaOH 2) PCC 3) MeMgBr 4)…

A:

Q: Balance each reaction and write its reaction quotient, Q꜀:

A: Balancing of the equation can be said as :- number of atom in reactant side = number of atom in…

Q: 1.) PBr3 2.) NaCN 3.) MgBr OH 4.) H*, H20 a) b.) d) ZI

A: Detailed mechanism is given below:

Q: Analysis of a 31.7 g sample of water revealed a mass percent for lead of 3.3%. Calculate the number…

A: Analysis of 31.7 g of water was done and the mass percentage of lead was found to be 3.3%,

Q: List and Define kinds of samples according to size:

A: This is a question from Analytical Chemistry. Sample size means amount of sample taken for analysis.…

Q: What is the percent by mass of oxygen in morphine, C17H19NO3? Group of answer choices 71.55 6.72…

A: The molecular formula of morphine is = C17H19NO3 The percent mass of oxygen in the morphine is =?

Q: Part A Calculate the mass percent composition of iron for Fe2 O3 (hematite). Express the mass…

A: Mass percent of component = (mass of component / total mass of compound ) × 100

Q: 8Ca → 3. 65 Sc 65 4. Be + He C + -> P + H 31 15 32 15 5. 16S + Hе 35 6. 1ci +

A: Dear student,  As you have asked multiple question but according to guidelines we will solve first…

Q: 118kg/m3 is equal to how many g/cm3?  Give your answer to three below the decimal place.

A:

Q: ) LIAIHA (excess) CN 2.) H30*, H20 pyridine a) 1.) b.) 1.) c.) 1.) H2N. 2) 2) NH2 2) 3.) 3.) 3.) d)…

A: Given reaction,

Q: b. NaNO₂ (Ka of HNO₂ = 4.5 x 10-4) c. NH4NO3 (Kb of NH3 = 1.76 x 10-5)

A: Here we have to calculate the pH of the 0.100 M of the given salts. NaNO2 is a salt of weak acid(…

Q: Determine the formula weight of caffeine, C₈H₁₀N₄O₂. Provide an answer to two decimal places.

A: The formula weight of caffeine can be calculated as follows:

Q: Et20 + СНЗСН2LI H3O+ а. CH212 Zn/Cu Et20 b. LiCu(CH3)2 C. H3CO 1.Mg, THF 2.НСОН H3O+ Br d.

A: In this question, we want to draw all the products in each cases.  You can see below all the…

Q: What is the percent by mass of hydrogen in Ca(OH)2? Group of answer choices 2.72 % 1.36% 21.6 %…

A: % by mass basically tells about the concentration of one element present in the mixture. The formula…

Q: MnSO4-4H20 in the mixture? O 11.2% O 65.3% C 69.6% O 34.7% O 88.8% O None of the above

A:

Q: 8. magnesium sulfide + nitric acid > Normal: MeS(ag) + 2HNO3(3g) Mg(NO3)2(ag) +H2S(s)

A: Maghesium sulfidet nitric acid → The normal equation can be written asNormal:Mgs (aq)+ 2 HNO3 (aq) →…

Q: Part A Iron is mined from the earth as iron ore. Common ores include Fe2 O3 (hematite), Fe3 O4…

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Q: Base: 215 conj: 60 subs: 68 exo: 5 B-ring: 35 381 259 (9,500) calc: 259 388 (18,000) calc: 381 225…

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Q: 1. Atomic spectroscopy analyses the elemental composition of the sample, essentially giving data to…

A: Dear student since it is a multiple subparts questions according to guidelines here I am solving…

Q: Draw the products formed in each reaction sequence.

A: Introduction: Witting reaction: It is an organic reaction in which a triphenylphosphonium ylide…

Q: Calculate the mass of bromide from 12.9 g of sodium bromide. Group of answer choices 6.02 g 16.6 g…

A:

Q: Find the mass percent of water in CuSO45H2O.

A: The molecular formula of copper sulfate states that one molecule of copper sulfate contains five…

Q: How many grams of hydrogen is produced from 194 g chromium? 2Cr + 2H3PO4 ⟶ 3H2 + 2CrPO4 77.4 g…

A: The balanced reaction taking place is given as, => 2 Cr + 2 H3PO4 ⟶ 3 H2 + 2 CrPO4  Given : Mass…

Q: Calculate the formula mass of N2H4 to 2 decimal places.

A: To calculate the formula mass of N2H4.

Q: mothball, composed of naphthalene (C10H8C10H8), has a mass of 1.48 gg . How many naphthalene…

A: Mass= 1.48gm MOLAR mass= 128 Mole= mass÷molar mass Mole= 1.48÷128= 0.011 Molecule= mole×6×1023…

Q: For B D and E what is the equilibrium constant

A: Write equilibrium expression of the given reaction--

Q: g(s) + Zn2"(aq) Mg2"(aq) + Zn(s)

A: In the Spontaneous reaction  cell potential is positive while cell potential is negative. According…

Q: Thin film of silicon , Si is used for fabrication of electronics components. What mass of SiH4  is…

A: For a balanced chemical reaction .aA+bB→cC+dDMoles of A reacteda=Moles of B reactedb=Moles of C…

Q: Manganese (Mn) content in an ore is analysed by converting Mn to Mn3O4. Calculate the minimum mass…

A: Given - % of Mn = 7.8%             Mass of Mn3O4 = 0.2340 g            Relative atomic mass of Mn =…

Q: Br Method 1: 1) t-BUOK 2) H3O° 3) PCC 4) MeMgBr 5) H2O 6) PCC Method 2: 1) NaOH 2) PCC 3) MeMgBr 4)…

A: The reaction of alkyl bromide with NaOH gave the respective alcohol, which on further oxidation gave…

Q: H2SO4 (aq) + Ba(OH)2 (aq)

A: When an acid reacts with a base it produces salt and water. Such reactions are known as acid-base…

Q: C. (11) FeCl3 + (12) SO2 + H20 → (13) FeCl2 + (14) HCI + (15) H2SO4

A: This above balanced equation is wrong.

Q: (r) H* + CH;CH2OH H2NNH2, OH (w) Нeat 1. Br2, FeBr3 (х) 2. Mg, Et20 3. 4. Hзо*

A: The major products of the following reactions are as follows:

Q: HO, HO, 1) HO но H+ LIAIH, 1) ВН 1) LIAIH(O'Bu)a -78°C -78°C 2) H20 2) LIAIH, 3) H20 2) Hо A C E

A: The question is based on the concept of organic reactions.   We have to convert the reactant into…

Q: pure sample of an organic molecule has the formula CxHyOz. If x = 12, y = 21, and z = 2. Calculate…

A:

Q: alculate the formula mass for each of the following compounds. ZnCO3ZnCO3 Express your answer using…

A: A set of 4 molecules, whose formula masses are to be determined.

Q: e) 1) CH2 N2 4. HO cl 2) Ag20 wree tremechaui sm? 3) Hzo

A:

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.