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Chromium (Cr) is a metal that is added to steel to improve its resistance to corrosion...
The addition of some metallic elements to steels affect the properties of the metal. The ability to alter the steel...
The addition of some metallic elements to steels affect the properties of the metal. The ability to alter the steel corrosion resistance can be effected by the elements: Chromium, Copper, Molybdenum Aluminum, Vanadium Cobalt, Nickel Lead, Tellurium QUESTION 8 1 points The mechanical properties of the metal is determined by OGrain size Material color Initial crystalline structure Material uniformity QUESTION 9 1 points An alloying element is any element added during the manufacture of steel that is not one of...
Review Constants Periodic Table Part A A stainless steel alloy is to be analyzed for its...
Review Constants Periodic Table Part A A stainless steel alloy is to be analyzed for its chromium content A 3.90 g sample of the steel is used to produce 250.0 mL of a solution containing Cr2O72.A 10.0-mL portion of this solution is added to BaCl2 (aq). When the pH of the solution is properly adjusted, 0.145 g BaCrO4 (s) precipitates. What is the percent Cr, by mass, in the steel sample? Express your answer numerically as a percentage. View Available...
A student, Legna, massed out 10.12 g of chromium(iii)chloride hexahydrate to synthesize a transition metal coordination...
A student, Legna, massed out 10.12 g of chromium(iii)chloride hexahydrate to synthesize a transition metal coordination complex. She obtained 7.20 g of a complex containing Chromium (Cr), Ammonia (NH3), and Chlorine (Cl). Samples of this compound were used to perform all analyses for the remainder of the advanced study assignment. The following data were obtained. analysis 1: no heat applied mass of compound used .4988g mass of crucible plus AgCl 19.2859g mass of crucible 18.4628g MM AgCl 143.32 g/mol MM...
Be sure to answer all parts. Potassium is the second most abundant metal in the human...
Be sure to answer all parts. Potassium is the second most abundant metal in the human body. Calculate the following: (a) The number of atoms in 7.85 moles of potassium. x 10 atoms Enter your answer in scientific notation. (b) The number of moles of potassium that contains 9.07 x 1025 atoms. x 10 mol Enter your answer in scientific notation.
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120...
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120 moi Na? 0.10 moi va y...olx.2-12 ima 2. Calculate the number of atoms in 2.95 mol Of copper. 2.45 voleux 3. A Sliver ring contains 1.1 X 10 silver atoms. How many moles of silver are in the ring? Itxite Imol- * 6.024x15 - 4. Zinc (Zn) is a siivery metal that is used in making brass (with copper) and in plating Iron to...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.9 and a sample standard deviation of s = 4.3. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.8 and a sample standard deviation of s = 4.3. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
2) A gold necklace contains 0.54 mol of gold. What is its mass in grams? 3)...
2) A gold necklace contains 0.54 mol of gold. What is its mass in grams? 3) A helium balloon contains 0.56g of He. How many moles of He does it contain? 4) How many Na atoms in 255 g of Na3PO4? 5) Calculate the mass in grams of 6.4 x 102 NO: molecules 6) Determine the number of atoms of O in 84.0 g of CsH1005
49. Calculate the mass of water produced when 625 of methane, CH4, reacts with an excess...
49. Calculate the mass of water produced when 625 of methane, CH4, reacts with an excess of oxygen in the following unbalanced reaction. CH4%)+18) + CO2g)+H2Og) a. 7.02 g H20 b. 2.25 x 10² g H20 c. 14.0 g H20 d. 0.347 g H20 c. 0.78 g H20 50. In the reaction below, how many molecules of hydrogen are required to react with 9.79 g of nitrogen? 3H,@) + N2) 2NH3) 1.2.10 x 1023 molecules hydrogen b. 3.16 x 1023...
A new aluminium (AI) container develop pits corrosion right through its wall with an average current...
A new aluminium (AI) container develop pits corrosion right through its wall with an average current density of 1.3x104 A/cm2. If the average pits is 0.70mm in diameter, the aluminium wall is 0.90 mm thick and assume the pits has a cylindrical shape and the corrosion currents acts uniformly over the surface area of the pits. (Given atomic mass for Al is 26.98 g/mol and density is 2.7g/cm3). [Satu bekas baru aluminium (AI) terhasil kakisan lubang melalui dinding dengan satu...
The addition of some metallic elements to steels affect the properties of the metal. The ability to alter the steel corrosion resistance can be effected by the elements: Chromium, Copper, Molybdenum Aluminum, Vanadium Cobalt, Nickel Lead, Tellurium QUESTION 8 1 points The mechanical properties of the metal is determined by OGrain size Material color Initial crystalline structure Material uniformity QUESTION 9 1 points An alloying element is any element added during the manufacture of steel that is not one of...
Review Constants Periodic Table Part A A stainless steel alloy is to be analyzed for its chromium content A 3.90 g sample of the steel is used to produce 250.0 mL of a solution containing Cr2O72.A 10.0-mL portion of this solution is added to BaCl2 (aq). When the pH of the solution is properly adjusted, 0.145 g BaCrO4 (s) precipitates. What is the percent Cr, by mass, in the steel sample? Express your answer numerically as a percentage. View Available...
Be sure to answer all parts. Potassium is the second most abundant metal in the human body. Calculate the following: (a) The number of atoms in 7.85 moles of potassium. x 10 atoms Enter your answer in scientific notation. (b) The number of moles of potassium that contains 9.07 x 1025 atoms. x 10 mol Enter your answer in scientific notation.
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120 moi Na? 0.10 moi va y...olx.2-12 ima 2. Calculate the number of atoms in 2.95 mol Of copper. 2.45 voleux 3. A Sliver ring contains 1.1 X 10 silver atoms. How many moles of silver are in the ring? Itxite Imol- * 6.024x15 - 4. Zinc (Zn) is a siivery metal that is used in making brass (with copper) and in plating Iron to...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.9 and a sample standard deviation of s = 4.3. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.8 and a sample standard deviation of s = 4.3. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
2) A gold necklace contains 0.54 mol of gold. What is its mass in grams? 3) A helium balloon contains 0.56g of He. How many moles of He does it contain? 4) How many Na atoms in 255 g of Na3PO4? 5) Calculate the mass in grams of 6.4 x 102 NO: molecules 6) Determine the number of atoms of O in 84.0 g of CsH1005
49. Calculate the mass of water produced when 625 of methane, CH4, reacts with an excess of oxygen in the following unbalanced reaction. CH4%)+18) + CO2g)+H2Og) a. 7.02 g H20 b. 2.25 x 10² g H20 c. 14.0 g H20 d. 0.347 g H20 c. 0.78 g H20 50. In the reaction below, how many molecules of hydrogen are required to react with 9.79 g of nitrogen? 3H,@) + N2) 2NH3) 1.2.10 x 1023 molecules hydrogen b. 3.16 x 1023...
A new aluminium (AI) container develop pits corrosion right through its wall with an average current density of 1.3x104 A/cm2. If the average pits is 0.70mm in diameter, the aluminium wall is 0.90 mm thick and assume the pits has a cylindrical shape and the corrosion currents acts uniformly over the surface area of the pits. (Given atomic mass for Al is 26.98 g/mol and density is 2.7g/cm3). [Satu bekas baru aluminium (AI) terhasil kakisan lubang melalui dinding dengan satu...
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