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24. A 39.652 g sample of a metallic element, M, reacts completely with 0.138 mol of...
using the attached image answer the 2 questions show all work and all conversion factors. l....
using the attached image answer the 2 questions show all work and
all conversion factors.
l. A 3.41 g sample of a metallic element, M, reacts completely with 0,0158 moles of a gas, X2. to form 4.52 g of MX, What are the identities of M and X? 2. A mixture of Fezoy and Feo was found to contain 72.00% Fe by mass. What is the mass of Felo in 0.500 g of this mixture?
Calculate the heat evolved when 0.500 g of Cl, (g) reacts with an excess of HBr...
Calculate the heat evolved when 0.500 g of Cl, (g) reacts with an excess of HBr (g) to form HCI (g) and Br, (0, given the following standard enthalpies of formation (kJ/mol): HCI (B), - 92.30; HBr (g), -36.20. Ryan Experiment 4 Advance Study Assignment: Determination of a Chemical Formula 1. To find the mass of a mole of an element, one looks up the atomic mass of the element in a table of atomic masses (see Appendix III or...
A 0.193 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction M(s) + H2SO4(aq) → MSO4...
A 0.193 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction M(s) + H2SO4(aq) → MSO4 (aq) + H2(g) A volume of 201 mL of hydrogen gas is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 1.0079 bar and the temperature is 25 °C. The vapor pressure of water at 25 °C is 0.03167 bar. Calculate the molar mass of the metal....
24.0 g of a compound, XH3 reacts with carbon dioxide to form water and 42.3 g...
24.0 g of a compound, XH3 reacts with carbon dioxide to form water and 42.3 g of H2XCOXH2. Calculate the relative atomic mass and hence the identity of X.
If 1.00 g of element X reacts with 2.00 g of element Y to produce 3.00...
If 1.00 g of element X reacts with 2.00 g of element Y to produce 3.00 g of a compound with the formula X2Y3, and the molar mass of Y is 50.0 g/mol, what must be the molar mass of X? (a) First of all, after reading the question, which element do you know more about, X or Y? (b) How many moles of Y are in 2.00 g of Y, and therefore must be in the X2Y3 ? (c)...
< Question 4 of 9 > A 0.196 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H2SO...
< Question 4 of 9 > A 0.196 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H2SO4 (aq) → MSO4 (aq) + H2(g) A volume of 205 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. Calculate the molar mass of the metal. molar mass: g/mol
A 0.599 g0.599 g sample of a metal, M, reacts completely with sulfuric acid according to...
A 0.599 g0.599 g sample of a metal, M, reacts completely with sulfuric acid according to M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g)M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g) A volume of 259 mL259 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. Calculate the molar mass of the metal.
a 2.49 g sample of cadmium metal completely reacts when placed in a coffee cup calorimeter...
a 2.49 g sample of cadmium metal completely reacts when placed in a coffee cup calorimeter that contains 75.0ml of a dilute solution of sulfuric acid ( density 1.03g/ml) to produce H2 gas and dissolved cadmium sulfate. The chemical reaction is exothermic with delta T from 21.5degrees C to 32.5C a) balanced equation- b)find enthalpy change(kJ/mol) for reaction,specific heat of reslting solution 4.18J/(gC) and assuming calorimeter is not involved in any heat exchange
A 0.526 g sample of a metal, M, reacts completely with sulfuric acid according to M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g)...
A 0.526 g sample of a metal, M, reacts completely with sulfuric acid according to M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g) A volume of 243 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. Calculate the molar mass of the metal. This all the information the question has. I did try entering 53.1g/mol as answer but it said it was wrong, saying...
Consider this reaction involving an unknown element X. F. + 2 XBr Br, + 2 XF When 7.900 g of XBr reacts, 3.362 g of...
Consider this reaction involving an unknown element X. F. + 2 XBr Br, + 2 XF When 7.900 g of XBr reacts, 3.362 g of Br, is produced. Calculate the molar mass of X, and then identify its element symbol. molar mass of X: g/mol element symbol for X:
using the attached image answer the 2 questions show all work and
all conversion factors.
l. A 3.41 g sample of a metallic element, M, reacts completely with 0,0158 moles of a gas, X2. to form 4.52 g of MX, What are the identities of M and X? 2. A mixture of Fezoy and Feo was found to contain 72.00% Fe by mass. What is the mass of Felo in 0.500 g of this mixture?
Calculate the heat evolved when 0.500 g of Cl, (g) reacts with an excess of HBr (g) to form HCI (g) and Br, (0, given the following standard enthalpies of formation (kJ/mol): HCI (B), - 92.30; HBr (g), -36.20. Ryan Experiment 4 Advance Study Assignment: Determination of a Chemical Formula 1. To find the mass of a mole of an element, one looks up the atomic mass of the element in a table of atomic masses (see Appendix III or...
A 0.193 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction M(s) + H2SO4(aq) → MSO4 (aq) + H2(g) A volume of 201 mL of hydrogen gas is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 1.0079 bar and the temperature is 25 °C. The vapor pressure of water at 25 °C is 0.03167 bar. Calculate the molar mass of the metal....
< Question 4 of 9 > A 0.196 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H2SO4 (aq) → MSO4 (aq) + H2(g) A volume of 205 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. Calculate the molar mass of the metal. molar mass: g/mol
Consider this reaction involving an unknown element X. F. + 2 XBr Br, + 2 XF When 7.900 g of XBr reacts, 3.362 g of Br, is produced. Calculate the molar mass of X, and then identify its element symbol. molar mass of X: g/mol element symbol for X:
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