What is the weight of lead nitrate Pb(NO3)2 (molecular weight = 331 g/mol) that %3D must be dissolved in a liter of solution to prepare 100 parts per million of lead (atomic weight 207)?

Q: A procedure to synthesize [Co(NH3)5Cl]Cl2 requires 1.5 mol NH3, 0.10 mol H2O2, and 0.60 mol HCl. The…

A: The balanced reaction given is, => Co2+ (aq) + n NH3 (aq) + 3 Cl- (aq) + 0.5 H2O2 (aq) →…

Q: 8.) Considering the equation 2 NaI (ao) + Cl₂(g) → 1₂ (s) + 2 NOCI (aa) How many grams of Sodium be…

A: 2 NaI (aq) + Cl2(g) ==> I2(s) + 2NaCl (aq)  Given Mass of Iodine = 49.5 g  Molar mass of Iodine =…

Q: If Cu(NO3)2 + 2 H2O à Cu(OH)2(s) + 2 HNO3(aq)  would any copper ions be produced? Write the net…

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Q: CaO

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Q: How many moles of lithium hydroxide would be required to produce 31.5 g of Li₂CO₃ in the following…

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Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

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Q: Calculate the molecular weight of lead(II) carbonate.

A: Using the chemical formula of the compound and the periodic table of elements, we can add up the…

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Given - Weight of Al2O3= 12.6kg = 12.6 × 103 g (1kg = 1000g) Weight of NaOH=59.4kg = 59.4 × 103 g…

Q: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: Even though lead is toxic, lead compounds were used in ancient times as white pigments in cosmetics.…

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Q: What is the mass percentage of C in caffeine, C18H10N4O2

A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100

Q: Calcium Chloride CaCl2 has a molar mass of 110 grams per mole. 11.0 grams of CaCl2 dissolved in 500…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: how many liters of oxygen, O2 are produced from the decomposition of 402.6 g of potassium chlorate…

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Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

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Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

Q: Write a balanced chemical equation for the reac- tion of bromine and triolein, a triglyceride of…

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Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

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Q: What does n= if, 3.764 g CuSO4 · nH2O yields 1.585 g of anhydrous Cu(OH)2 after treatment with…

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Q: How many moles of ammonia would be required to react exactly with 0.750 moles of copper(II) oxide in…

A: Given balanced equation is  2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g) Moles of copper(II)…

Q: How many moles of lithium hydroxide would be required to produce 68.0 g of Li₂CO₃ in the following…

A: Given, mass of Li2CO3 = 68.0 g Molar mass = 73.891 g/mol

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: What is the molecular weight of Fe (OH)3

A: Molecular weight of the compound is a quantity computed by multiplying the atomic weight (in atomic…

Q: Determine the mass, in grams, of sodium azide required to produce 35.09 moles of nitrogen gas.

A: Number of moles of nitrogen gas (N2) = 35.09 moles. Mass of sodium azide (NaN3) (in grams) = ?

Q: What is the limiting reagent in the synthesis of ammonia, NH 3 , from 43 g calcium oxide and 224 g…

A: A limiting reagent is chemical that is present in less quantity in a chemical reaction due to which…

Q: What mass, in grams, of NO2 is needed to form 140.4 g of NO? Assume excess water.    3NO2(g) +…

A: The reaction given is  3 NO2(g) + H2O(l)  →  2 HNO3(aq) + NO(g) Given : mass of NO forming = 140.4 g…

Q: moles of lithium hydroxide would be required to produce 59.5 g of Li₂CO₃ in the following chemical…

A: The given chemical equation is as follows: 2LiOH + CO2 →Li2CO3 + H2O

Q: How many grams of nickel(II) nitrate are needed to produce 35.7 g nickel(II) phosphate in the…

A: Given data, mass of nickel(II) phosphate = 35.7 g, molar mass of nickel(II) phosphate=366.02 g mol-1…

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: Give the reaction type: CaCl2•3H2O (s) + ∆  ⟶ CaCl2 (s) + 3H2O (g)

A: In the given chemical reaction in which heating take place, 3 molecules of water realeases which is…

Q: The human body consumes about 1.142 x 10-2 mol O2 every minute. If all of this oxygen is used for…

A: In cellular respiraction, glucose break down in to carbon dioxide and water in presence of oxygen.…

Q: What is the mass percent of chromium in Fe2(CrO4)3, which has a molar mass of 460 g/mol? 26% 34%…

A: The given compound is Fe2(CrO4)3  Given molar mass of this compound = 460 g/mol  Therefore, total…