part 1) Iron pyrite, often called "fool’s gold," has the formula FeS2 . If you could convert 33.2 kg of iron pyrite to iron metal, what mass of the metal would you obtain? Mass=_______kg

Q: Pitchblende is the most important compound of uranium. Mass analysis of an 84.2-g sample shows that…

A: Elements are combined together in different molar ratios in order to form a compound.

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: 8.* A4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated.…

A: The question is based on the concept of experimental chemistry. we have to calculate the empirical…

Q: Chemistry (1= T15HW Question 5 Homework Unanswered O Determine the percent by mass of both magnesium…

A:

Q: Consider this chemical reaction: 2 MnI2(s) + 13 F2(g) 2 MNF3(s) + 4 IFs(1) If 83.5 kilograms of…

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Q: carbon

A:

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

A:

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: Calculate the mass (in grams) of 4.69 x 1024 carbon atoms.

A: Given : 4.69 × 1024 carbon atoms.  We know 6.022 × 1023 atoms = mass of one mole

Q: An 86.04 g sample of H2SO4 is 91.22% pure. What is the mass of pure H2SO4 present in the sample?

A: % Purity = (Mass of pure substance x 100)/Mass of sample

Q: How many grams of CCl4 will contain 36.00 g of carbon? express your answer in decimal notation.

A: Mole of carbon tetrachloride is equal to mole of carbon

Q: Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left…

A:

Q: Calculate the mass of 3.011 x 10^23 atoms of calcium.  Report your answer to two decimal places

A: First find no. of moles by dividing by Avogadro no. ( NA) then find mass.

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

A:

Q: Find the mass of 1 molecule of Li H in gram. a. 7.949 b. 1.32 x1023 С. 4 d. 1.32 x10-23

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Q: Calculate the mass in grams of each sample 5.20×1020 H2O2 molecules

A: Molar mass of any compound is the mass of that compound in which Avogadro's no. of molecules are…

Q: 4. Write an equation showing how the mass of the substance sought can be converted to the mass of…

A: To Write an equation showing how the mass of the substance sought can be converted to the mass of…

Q: The mass of 1 molecule of HI in grams is 127.91. Select one: O True O False

A:

Q: The density of liquid benzene, C̟H,, is 0.879 g/cm at 15 °C. How many moles are there in 36.5 mL of…

A: The number of moles of any substance is the ratio of the amount of that substance present with molar…

Q: A titanium ore contains rutile (TiO2) plus some oxides of iron and silica. When it is heated with…

A: Reaction: TiO2 + C + Cl2 ---> TiCl4 + Cl2 molecular mass of TiO2 = 79.866 g/mol molecular mass of…

Q: 3. A 5-peso coin was placed on top of a watch glass and their mass was recorded as 45.68 g. The mass…

A: Initially, mass = 45.68 g Empty watch glass mass = 39.86 g

Q: 1. ____N2 + 3H2 ____NH3

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: 16. While cleaning your attic, you find your old rock collection. If 74.2% of the rocks have a mass…

A: If a substance is present in more than one form then average mass of that substance given by…

Q: If Mass of 10 bolts = 64.567 g Mass of 10 nuts = 20.321 g1. What is the mass of 225 bolts?2. What is…

A: Given,Mass of 10 bolts = 64.567 gMass of 10 nuts = 20.321 g

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

A:

Q: A certain ore is 30.3% nickel by mass. How many kilograms of this ore would you need to dig up to…

A: Introduction: We have to calculate the mass of ore.

Q: Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02…

A: Moles are ratio of mass to molar mass of substance.

Q: °C. Mass of Mg = g %3D

A:

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

A:

Q: Use the following information to determine the mass of chlorine combined with the magnesium to two…

A: Given, mass of crucible = 35.1  mass of crucible and magnesium = 38.92  mass of crucible and…

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: Convert each to mass in grams. a. 4.22 x 10 atoms U b. 8.65 x 10 atoms H c. 1.25 x 10 atoms O d.…

A: Note: As the question consists of multiple parts, we are solving the first four, and please post the…

Q: If you have 74.2% silicon dioxide in your 52.0g sample, what mass (in grams) of silicon dioxide do…

A: Given: Mass of the sample=52.0 g  Percentage of silicon dioxide in the sammple= 74.2 % Mass silicon…

Q: 3 The density of liquid benzene, C,H, is 0.879 g/cm at 15 °C. How many moles are there in 36.5 mL of…

A: Given that:  Density of benzene = 0.879g/cm3 Volume of benzene = 36.5mL  Using the formula of…

Q: Find the percentage by mass of Cl in CaCl2 if it is 36.1% Ca by mass. (Round your answer to one…

A: (1) The percentage by mass of Cl is 63.8% in CaCl2 if it is 36.1% Ca by mass.      (2) the…

Q: 4. A 3.5 M sample of hydrochloric acid, HCl, has a density of 1.45 g/ml. What is the mass % (wt/wt)…

A: Molarity of HCl = 3.5M = 3.5 mol/L density of HCl solution = 1.45 g/mL Assume total Volume of HCl…

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: A drop of water has a volume of 50 uL. How many water molecules does it contain? The density of…

A: Given that,Volume of water = 50 micro L = 0.05mLDensity of water = 1.0 g/mLNow, you calculate the…

Q: You wish to prepare 207 grams of 14.7 % Ca(NO3)2. You will need grams of calcium nitrate and mL of…

A: Given mass of solution = 207 gm

Q: A sulfur dioxide gas sample has a volume of 242.62 mL at 242279 pascals and 82.99oF. Calculate the…

A: Given,

Q: 2. Sakura is launching a new line of porcelain merchandise. She wants to figure out how many grams…

A: Sakura is launching a new line of porcelain merchandise. She wants to figure out how many grams of…

Q: what is the mass of 2i10xlo (19 unat is the mass of 2.10 x10 of copper, cu? atoms. Oilol 0.2229…

A: Given data contains, The number of copper atoms is 2.10×1021 atoms.

Q: What number of atoms of carbon is in 1.00-carat diamond

A: Number of moles = mass/molar mass  Molar mass of carbon = 12.0107 g/mol  1 mol carbon contains 6.022…

Q: Analysis of a 40 g sample of water revealed a mass percent for lead of 3.23%. Calculate the number…

A: Percentage by mass of the substance in the solution mixture can be expressed as the ratio of mass of…

Q: The mass % of Fe in Iron III chromate (Fe2(CrO4)3) is __________.

A: The molar mass of Fe2(CrO4)3 is 459.671 g/mol. Molar mass of Fe is 55.845 g/mol But in Iron III…

Q: A student used a piece of aluminum that had a mass of 2.583 grams, and treated according to the same…

A: Given:Mass of Al= 2.583 gramsChemical equation:2 Al(s) + 2 KOH(aq) + 4 H2SO4(aq) + 22 H2O(l) → 2 KAl…

Q: 12 1. In mammals, lactose (milk sugar) is metabolized to glucose (C6H₁2O6), the key nutrient for…

A: Give the molecular formula of glucose is C6H12O6 The mass percent of each element in glucose is

Q: Some students burned magnesium in excess oxygen, as described by the equation 2 Mg(s) + O2(g) --> 2…

A:

Q: An 8.53 mg sample contains 1.72 mg of phosphorous.  What is the mass percentage of phosphorous in…

A: Given  mass of phosphorous = 1.72 mg mass of compound = 8.53 mg  Formula : mass percentage of…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".