82 CALCULATIONS How many moles of magnesium used? (Use data A) ue of E) qar calaed...
Lab 11: The Reaction of Magnesium with Hydrochloric Acid Using data from page 111, I need help with the calculations on page 112 Purpose: Data: Trial 1 1 Trial 2 Trial 3 Mass Mg (9) Temperature (°C) 149 1.169 illg. 122.50€ 22,4€ 20.2°c) 2044in 20:32. in 19.83 in Atmospheric Pressure (inches Hg) 5 Vapor Pressure of water (mm Hg) from chart Volume of Ha collected (ml) 76.01 m. 118.2mL 90. SmL Results Trial 1 Trial 2 Trial 3 1. Moles...
A 0.250-g sample of a magnesium-aluminum alloy dissolves completely in an excess of HCl(aq). When the liberated H2(g) is collected over water at 29 degrees Celsius and752 torr, the volume is found to be 301 mL. The vapor pressure of water at 29 degrees Celsius is 30.0 torr.How many moles of H2 can be produced from x grams of Mg in magnesium-aluminum alloy? The molar mass of Mg is 24.31 g/mol.Express your answer in terms of x to four decimal...
7. How many moles of magnesium are in magnesium oxide if 0.15 g magnesium was fully burned in oxygen (The molar masses are 24.305 g/mol for magnesium, 15.999 g/mol for oxygen and 40.304 g/mol for magnesium oxide.)? a. 0.12 mole b. 0.0037 mole c. 0.0094 mole d. 0.0062 mole 8. How many moles of oxygen are in magnesium oxide if 0.15 g magnesium was fully burned in oxygen (The molar masses are 24.305 g/mol for magnesium, 15.999 g/mol for oxygen...
Experiment 12: Generating Hydrogen Gas Data: A. Percent yield of hydrogen gas Mass of magnesium 0.04298 Volume of H2 gas (actual) 42.ml 0.0426 24.0°C 297 Temperature of H, gas Atmospheric pressure (see barometer) 765.8 mmHg a2.4 mmHg Vapor pressure of water Partial pressure of Hą gas 743.4 mmHg 0.976 1 atm Calculate the moles of hydrogen gas that should have been produced, starting with the mass of Mg and using the balanced equation. mg = 24.31 Mg(s) + 2 HCI...
E: How many moles of aluminum ions are present in 0.32 moles of Al2(SO4)3? F: How many moles of sulfate ions (SO42?) are present in 1.3 moles of Al2(SO4)3? G: Calculate molar mass C6H14O6 (sorbitol) Express your answer to two decimal places and include the appropriate units. H: The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 0.025 moles of Demerol hydrochloride? I: How many moles of H2 are needed to react with 0.55 mol of...
Experiment 12. Generating Hydrogen Cas A. Percent yield of hydrogen gas Mass of magnesium -0.051 Volume of gas (actual) Temperature of H gas Atmospheric pressure (see barometer) 20 °C 24 mmHg 26PmHg mmHg Vapor pressure of water there mmtig Partial pressure of He gas Calculate the moles of hydrogen gas that should have been produced, starting with the mass of Mg and using the balanced equation. Mg (8) + 2 HCI (aq) → MgCl(aq) + H2 (8) 0.08ling Imoling ....
Magnesium metal reacts with hydrochloric acid to give hydrogen gas. Mg + 2 HCl → MgCl2 + H2 Use the following reaction information to answer the subsequent questions. Show all of your work. 92 mm Length of Magnesium ribbon: Barometric Pressure: 762.9 mmHg Water Temperature: 29 °C Initial Gas Volume: 0.00 mL Final Gas Volume: 67.35 mL 0.7559 Mass = Length (in mm) x (1000 mm) 1. Magnesium is usually found in the laboratory as a ribbon strip. Find the...
How many moles of phosphorus trichloride may theoretically form when 2.409 g of chlorine reacts? (Use 70.90 g moll for the molar mass of chlorine.) P4(s) + 6 Cl2(g) -> 4 PC13(1) What is the limiting reagent when 0.7541 g of phosphorus reacts with 2.409 g of chlorine? P4(s) + 6 Cl2(g) - 4 PC13(0) P4 Cl2 PCI3 Calculate the theoretical yield of phosphorus trichloride (in g) when 0.7541 g of phosphorus reacts with 2.409 g of chlorine. (Use 137.3...
21. How many moles of Carbon are in 36.0 g of Carbon? 1.5 moles 3.0 moles 36 moles 432 moles 22. How many grams of Nitrogen gas are found in 22.4 L of Nitrogen gas? 14 g 28 g 20 g 56 g 23.What is the percent sodium in sodium chloride? 60.7% 30% 70% 39.3% 24.If you do a lab that burns Magnesium in pure Oxygen what would the empirical formula of the compound be if you started with 0.6...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...