STIONS 1. Turquoise, CuAls(PO44(OH)g 4 H20, is what percent copper by weight? 2. The density of copper is 8.97 g/cm3. What is the volume, in mL, of a 1.00 kilogram mass of pure copper? 3. Why is copper plumbing used in our homes but not aluminum plumbing? 4. The average human needs 2.0 mg of copper ions, Cu2*, per day in their diet. This is how many copper ions? 5. Copper is extracted from the ore, chalcopyrite, CuFeS2. How many kilograms of a 0.862% chalcopyrite ore will be necessary to produce 1.00 kg of pure copper? The percentage of copper in chalcopyrite needs to be known to work this problem. 111

Q: 1. PHCO0OH 2. EtLi, then H30* 3. PCC

A:

Q: Express your answers to at least 5 significant figures. The mass of one mole of boron is 10.811 g.…

A:

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…

A:

Q: 2. A dietician has learned from a nutritional book that his family needs at least 300 grams of…

A: Solution -

Q: One ounce of dark chocolate contains 0.25 g theobromine, a compound related to caffeine. Calculate…

A: GivenMass of theobromine = 0.25 gChemical formula of theobromine =C7H8N4O2Molar Mass of theobromine…

Q: Use the standard entropy data to determine the change in entropy for each of the reactions listed (…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: We have 425 cm3 of a material. How many g is it? The material has density of 0.345 g/cm O 68.0 g O…

A: We have to find mass ,volume and density  is given in the question  Volume of the material = 425 cm3…

Q: An electric current is passed through 60.0 mL of water (H2O). This converts the water into 53.33 g…

A: Given  Volume of water = 60 mL  Mass of Oxygen  = 53.33 gram Mass of hydrogen gas  = 6.67 gram…

Q: 1) Mg, Et,0 2) H20 Br LHO Но. но

A:

Q: What mass of HCl in grams is neturalized by a dose of milk of magnesia containing 3.26g Mg(OH)2?

A: Given :- mass of Mg(OH)2 = 3.26 g  To calculate :- mass of HCl (in g)

Q: NH3(aq) + CO2(aq) → CH,N20(aq) + H20(1) n an industrial synthesis of urea, a chemist combines 32.1…

A: Given that, mass of ammonia, and mass of Co2. And limiting reagent is asked.

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

A: Detailed mechanism is given below:

Q: At first, it seemed like the poisoned Russian agent might have ingested thallium in the form of…

A: the minimum amount of thallium to kill an average adult= 8*102 mg concentration= 0.45m conc = no of…

Q: Sterling silver contains 925 parts silver and 75 parts copper by mass. What is the percent silver in…

A:

Q: 1. NaNO, H,SO, H,CO. NH2 J T CisH202 2. H;CO.

A:

Q: Cu20(s) -170.7 92.4 CuO(s) -156.1 42.6 Cu(s) 33.2

A:

Q: what is the mass of the anhydrous compund?

A:

Q: If liquid bromine has density = 3.12 g/mL, how many Br2 molecules are present in a 1.0-mL sample of…

A: Given: Density of liquid bromine (d) = 3.12 g/ml The volume of liquid bromine =1.0 ml To find:…

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg.

Q: Calomel, Hg2Cl2, is a compound composed of the diatomic ion of mercury(I), Hg2 2+, and chloride…

A: Molar solubility is defined as the moles of the solute dissolved per litre of the solution. The…

Q: For each reaction, predict the sign and find the value of ΔS°:

A: It’s given below :

Q: Na,CO3(aq) + CaCl2(aq) → 2 NaCI(aq) + CaCO3(s)

A:

Q: If 2.00 grams of Epsom salts are allowed to dehydrate in a warm oven overnight, the mass of the…

A: Since No of mole of epsom salt (MgSO4.xH2O) will be equal to no of mole of MgSO4. On solving we…

Q: The major product formed in the reaction is:

A:

Q: how many grams of Cu(NO3)2 can be made from 25 grams of copper

A: The reaction involves,

Q: Solvent Hydrogen Oceans Ponds Cooking Cleaning Boiling Freezing Properties Colorless Tasteless Oil…

A: The blanks are filled below:

Q: Draw the products of each reaction.

A: The sodium ethoxide (NaOEt) is an base which will abstract the most acidic proton and generates a…

Q: CH3 HBr a) ? Br NaOC,H5 / isi b) ? 1.NABH4 ? c) 2. Hао

A:

Q: Question 1

A:

Q: 7. What kind of a compound is KN and how do you know this? Draw a representation of three units of…

A:

Q: 1. A solid fuel's analysis showed that it was 80% C, 9% H2, 5% S, 3% N2, and 3% ash by mass. а. What…

A:

Q: 15. Kkura found a sulfide ore in the dungeon which she identified to be chalcocite. While waiting…

A:

Q: 2. Translate the following chemical equations into sentences: a. CS2 (1) + 302 (g) → CO2(g) + 2 SO2…

A: Since you have posted a question with multiple parts, we can solve only first three parts for you.…

Q: An analytical chemist measures the amount of Elements E, and E, in four samples of an unknown…

A: Since the unknown substance, X contains elements E1 and E2, it can be either a compound of E1 and…

Q: CCI,CO 1,0 (1) = н (aq) 4,0 (1) = (aq)

A: When acid dissociation in water then it's released H(+) ion and this H(+) ion abstracted by the…

Q: B. C10H1604 compound? A. Mixing NaCl with H₂O C. Wax burning Q12. Which of the following does not…

A: Question no. 12 as specified.

Q: Question 2

A: Given information:Density of copper = 8.97 g/cm3Mass of pure copper = 1.00 kg

Q: In the reaction 1. the Law of Gravity. CACO3 CaO+ CO2 2. the Law of Conservation of Energy. 100…

A: Here, it is given that the mass of calcium carbonate is 100 grams and the products formed will have…

Q: What percent by mass of iron(II) phosphate is iron? a.46.9 b.73.2% c.24.3% d.33.7%

A: Determination of percentage of iron in iron(II) phosphate

Q: 7. To make a ham sandwich, you choose to use 2 pieces of bread (B), 4 slices of ham (H), and 1 slice…

A: Given, Peices of Bread = 14 Slices of Ham = 24 Slices of cheese = 7

Q: One mole of silicon (6 x 1023 atoms) has a mass of 28 grams, as shown in the periodic table on the…

A: Given :- Mass of 6 × 1023 atoms = 28g  Density = 2.4g/cm3

Q: 2 Zn + Pb(NO3)4 = Pb + Zn(NO3)2 determine the amount of lead, Pb, in kilograms, which can be…

A:

Q: 1. SC.912.P.8.2 - Discuss volume, compressibility, density, conductivity, malleability, reactivity,…

A: When a mixture(or a pure substance) has a single phase in it, it is called homogenous system. When…

Q: t2 = 20.9 Hns typ = 0.603/K k = 0•693 O: 693/20.9 0.693 K = E a.033 br

A: Half life It is the time when the Concentration becomes half of the initial Concentration

Q: 1.) A pure Alum salt KAl(SO4)212H2O contains 300 mg of Potassium. What is the weight of pure Alum?

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

Q: 1. PCi +H8(?) H e.Czt,OH(2) +Oz19)>CO f. Ca Ocss + Ces) Calz(s) g. Mo Sz(6)+Ozg) mg h.

A: Applying hit-trial method of balancing chemical reaction.

Q: A bottle of a tile cleanser contains 135g og HCl and 775g of water. What is the percent by mass og…

A:

Q: What mass of oxygen is present in 10.0 grams of potassium nitrate (KNO3)?

A: Mass of KNO3 = 10 g Molar mass of KNO3 = 101.1 g/mol