i need the exat percentage of nitrogen in magnesium nitride

44,604 results

  1. chemistry

    i need the exat percentage of nitrogen in magnesium nitride
  2. chemistry

    0.197g of magnesium is burned in air 2Mg + O2 ---> 2MgO However, some of the magnesium reacts with nitrogen in the air to form Magnesium nitride instead : 3Mg + N2 --->Mg3N2 So you have a mixture of MgO and Mg3N2 weighing 0.315g.Determine what percentage of the Mg formed...
  3. Chem 2

    If we burn a strip of magnesium in air, there will be two main products, magnesium oxide and magnesium nitride. If we then treat that mixture with water, the nitride ion is converted to ammonia. After boiling away the water and ammonia, we would be left with only magnesium ...
  4. Chemistry

    Magnesium forms both an oxide and a nitride when burned in air. Discuss the formation of magnesium oxide and magnesium nitride when magnesium atoms react with oxygen and nitrogen atoms.
  5. chemistry

    The percentage of nitrogen in magnesium nitride is.?
  6. Chemistry

    Ammonia can be produced in a two-step process. First, nitrogen reacts with red-hot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. How many grams of magnesium would we have to start with to prepare 15.0 ...
  7. chem

    Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3N2. Magnesium nitride reacts with water to give ammonia. Mg3N2(s) + 6 H2O(l) → 3 Mg(OH)2(s) + 2 NH3(g) What volume of ammonia gas at 24°C and 753 mmHg will be produced from 4.46 g of ...
  8. chemistry

    When magnesium burns in air, it reacts with oxygen and nitrogen, forming magnesium oxide and magnesium nitride. If 20.0L of air is available for this reaction, what mass of each compound can be formed? (Remember air is about 80% Nitrogen and 20% Oxygen)
  9. Chemistry

    Magnesium nitride can be produced by passing nitrogen gas over magnesium metal. 3Mg+N2 --> Mg3N2 IF 28.8g of Mg are mixed with 21g of N2 and allowed to react, which is the limiting reagent?
  10. Chemistry (Check)

    Ammonia can be produced in a two-step process. First, nitrogen reacts with red-hot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. A. Write each balanced chemical reaction. B. How many grams of magnesium ...
  11. Chemistry (Check)

    Ammonia can be produced in a two-step process. First, nitrogen reacts with red-hot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. A. Write each balanced chemical reaction. B. How many grams of magnesium ...
  12. chemistry

    find mass of magnesium nitride produced in reaction of 5.0of magnesium with 10.0gof nitrogen. the reaction was carried out in a closed container
  13. Chemistry

    The following is a Limiting Reactant problem: Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g)  Mg3N2(s) How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)? Show all ...
  14. Chemistry

    Magnesium burns in air to produce magnesium oxide MgO and magnesium nitride Mg3N2. Magnesium nitride reacts with water to give ammonia. What volume of ammonia gas at 24 degrees C and 753 mmHg will be produced from 4.56 g of magnesium nitride. P= 753 mmHg (1 atm/ 760mmHg)= .991...
  15. Chemistry

    The following is a Limiting Reactant problem: Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g) -> Mg3N2(s) How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)?
  16. chemistry

    Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g) --> Mg3N2(s) How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)? i havent been able to figure this one out, can someone help me?
  17. Chemistry

    If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s) + 3 H2O(l) => 3 MgO(s) + 2 NH3(g) If 11.1 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 23°C and 739 mm
  18. chem

    the element nitrogen and magnesium react to give magnesium nitride according to the balanced equation N2 + 3Mg = Mg3N2 suppose you have 0.3616 mol of n2 1-how many moles of mg are needed for complete reaction? 2-what mass of Mg3N2, in grams can be produced? ( the molar mass of...
  19. Chemistry

    Assume that some of the magnesium nitride is not completely converted to magnesium hydroxide and subsequently to magnesium oxide. Will your empirical formula be too high in magnesium or too high in oxygen? Please show any calculations you used to determine your answer.
  20. Chemistry

    If water I'd added to magnesium nitride, ammonia gas is produced when the mixture is heated Mg3N2 (s) + 3H2O (l) ----> 3MgO) (s) + 2NH) (g) *Only the numbers at the beginning aren't subscripts* If 10.3 g of magnesium nitride is treated with water, what volume of ammonia gas...
  21. Chemistry

    Assume that some of the magnesium nitride is not completely converted to magnesium hydroxide and subsequently to magnesium oxide. Will your empirical formula be too high in magnesium or too high in oxygen? Please show any calculations you used to determine your answer. Where ...
  22. Chemistry

    Calcium reacts with nitrogen to form calcium nitride. Indicate which reactant is limiting, calculate the mass of calcium nitride formed when 50.0g of calcium reacts with 50.0g of Nitrogen. How much excess reactant do you have?
  23. Chemistry

    How many moles of magnesium nitride form when 1.0 mole of magnesium reacts completely?
  24. college

    how many grams of magnesium are required to produce 2.154 g of magnesium nitride?
  25. chemistry

    when water is combined with magnesium nitride to produce magnesium hydroxide and ammonia gas,
  26. Chemistry

    How many grams of magnesium nitride are formed from 45.1 moles of magnesium?
  27. chemistry

    when water is combined with magnesium nitride to produce magnesium hydroxide and ammonia gas, is this reaction endothermic or exothermic and why?
  28. Chemistry

    When solid magnesium nitride reacts with water the reaction produces solid magnesium hydroxide and ammonia gas. 26.0 grams of magnesium nitride are reacted with 17.6 grams of water. 1. How many grams of magnesium nitride will remain after reaction is complete? 2. How many ...
  29. Chemistry

    A 4.5 g piece of magnesium ribbon undergoes combustion in air to produce a mixture of two ionic solids, MgO and Mg3N2. Water is added to this mixture. It reacts with the magnesium oxide to form 9.97 g of magnesium hydroxide. Assume all reactions go to completion. A) write a ...
  30. Chemistry

    Write the balanced equation for: Magnesium nitride + water -> magnesium hydroxide + ammonia MgNO2 + H2O -> MgOH + NH3 Is this correct?
  31. Chemistry

    When solid magnesium nitride reacts with water the reaction produces solid magnesium hydroxide and ammonia gas. If 22.9 grams of magnesium nitride are added to 31.0 grams of water, how many liters of ammonia should be produced (assuming standard temperature and pressure)? ...
  32. chemistry

    How to test calcium nitride.? ( ca3n2) when calcium reacts with nitrogen , Calcium nitride is formed. How can we test that the product formed is calcium nitride?
  33. chemistry

    Heating a 2.00g sample of magnesium metal with an excess of pure nitrogen gas produce 2.77g of a compound containing only magnesium and nitrogen. What is the empirical formula for this compound?
  34. science

    Write balanced chemical equations (using symbols) for the following reactions 1.hydrochloric acid reacts with magnesium to form magnesium chloride and hydrogen 2.Nitrogen monoxide burns in oxygen to form nitrogen dioxide
  35. chemistry

    How can you test calcium nitride.. ( Ca3N2) I have written the reaction between calcium and nitrogen. A question that says " how will you test the product formed " is given. SO can you please help me, How can you test calcium nitride?
  36. chem

    Calculate the number of grams of magnesium nitride necessary to produce 2.02 L of ammonia gas at STP. I got 4.55g for the upper question which is correct but idk how to do the bottom one: How many moles of magnesium hydroxide can also be formed? Mg3N2(s) + 6 H2O(l)--> 3 Mg(...
  37. Chemistry (Stoichiometry)

    Magnesium powder reacts with steam to form magnesium hydroxide and hydrogen gas. a) Write a balanced chemical equation for this reaction. b) What is the percentage yield if 10.1g Mg reacts with an excess of water and 21.0g Mg(OH)2 is recovered? c) If 24g Mg is used and the ...
  38. Chemistry

    A compound is formed when 12.2 g Mg combines completely with 5.16 g N. What is the percent composition of this compound? Please show all work and include the percentage of both magnesium and nitrogen.
  39. chemistry

    write and balanced equation for the formation of magnesium nitride from it elements
  40. Science

    What are the formulas for lithium bromide? http://www.webelements.com/webelements/compounds/text/Li/Br1Li1-7550358.html where can i find the formula for cupric nitride,and magnesium chloride also. and what are the formulas for the compounds formed by Fe2+,Cl- how do you figure...
  41. Chem

    what does an -ite or -ate ending in a polyatomic ion mean? i'm thinking it mean Oxygen is in the formula, or is it Sulfur is in the formula? i'm not sure oxygen is in both ites and ates. The ate has more oxygen than ite. NaClO2 sodium chlorite NaClO3 sodium chlorate NaClO4 ...
  42. College Chem

    A 2.446-g sample thought to contain only one volatile substance, MgCO3, was heated in a nitrogen atmosphere for 30 min. After cooling, the residue weighed 2.216 g. Calculate the percentage of magnesium carbonate in the sample.
  43. Chemistry

    magnesium powder reacts with steam to form magnesium hydroxide and hydrogen gas. What is the pecentage yield of 10.1g Mg reacts with an excess of water abnd 21.0g Mg 9g (OH)2 is recovered? If 24g Mg is used the percentage yield is 95% how many gramns of magnesium hydroxide ...
  44. chemistry

    which of the following compounds contains the lowest percentage by mass of nitrogen? 1) NH4NO3 2) (NH4)2 SO4 3) NaNO3 4) NH3 can someone please help me??what method should i use?how do i do this? Find the molar mass of each compound by adding the molar masses of every atom (...
  45. chemistry

    I need help with these questions 1. Calculate the percentage by mass of potassium in potassium sulfate K2 SO4 2. calculate the percentage by mass of nitrogen in ammonium nitrate Nh4 No3
  46. Chemistry

    When a 3.80 g sample of magnesium nitride (MW 101g/mol) is reacted with 3.30 g of water, 3.60 g of MgO is formed. What is the percent yield of this reaction? Mg3N2 + 3 H2O --> 2 NH3 + 3 MgO
  47. chemestry

    Consider once again the magnesium nitride addition reaction from the previous question. This time, suppose you start with 10.0 g N2 and an unlimited supply of Mg. What is the maximum number of MOLES of Mg3N2 that could be produced in this case?
  48. Math - Algebra

    Need help understanding this problem. Looks like an exponential growth/decay. Magnesium-27 has a half life of 9.45 minutes and can be described by using the equation “y=ae^-kt . What is the decay constant (k) for Magnesium-27? How many mg of Magnesium-27 will remain after 1....
  49. chemistry

    An analyst wants to determine the content of a 7% magnesium hydroxide bottle acquired in a drugstore, through the Volumetry method of neutralization. 8.995 g of magnesium hydroxide suspension were avolumados to 100ml of water, then,25 ml were added to the Erlenmeyer flask ...
  50. physics

    Consider nitrogen gas, N2, at 27.7°C. What percentage of nitrogen molecules have a speed within 1.00 m/s of the most probable speed?
  51. Quantitative Business Analysis

    John uses a liquid fertilizer to grow flowers in his back room. His fertilizer tank has a capacity of 5 gallons and currently contains 3 gallons of fertilizer which is 10% nitrogen. If he wants to change his fertilizer to 15% nitrogen, what percentage of nitrogen should he ...
  52. chemistry

    a mixture of gases is prepared for laboratory experiments by combining 4.2 L of oxygen, 0.71 L of nitrogen, and 0.22 L of carbon dioxide. Determine the percentage of nitrogen in the mixture.
  53. Chemistry

    I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two separate reactions. For part 1 we worked with magnesium metal, and magnesium oxide. Data was collected and now I need to find the q, heat transferred for both magnesium and ...
  54. chemistry

    The percentage of phosphourus in a detergent product may be determined by sample treatment including the precipitation of magnesium ammonium phosphate MgNH4PO4*6H2O (MW=245.41), using an excess of both magnesium and ammonium ions. The separated ans washed precipitate is then ...
  55. Science

    How many atoms are there in one molecule of the following compounds? a. silver chloride- AgCl b. calcium oxide- CaO c. Magnesium nitride- Mg3N2 d. Aluminium oxide- Al2O3 e. Scandium sulfide- Sc2S3 f. Hydrogen Peroxide- H2O2
  56. chemistry

    what is the formula for magnesium with Nitrogen
  57. Chemistry

    The explosive residue contains carbon, hydrogen and nitrogen where the percentage of nitrogen is high, calculate it from 0.5g of residue which eliminates ammonia gas on reaction with sodium hydroxide, and absorb by 50mL of Nby10 H2SO4. Unused acid is neutralized/titrated with ...
  58. Chemistry

    When heated, lithium reacts with nitrogen to form lithium nitride: 6Li+N2 --> 2Li3N What is the theoretical yield of Li3N in grams when 12.4 g of Li is heated with 33.9g of N2
  59. Chemistry

    You are going to be provided with 1 0.50 g sample of magnesium oxide. Treatment of this sample with hydrochloric acid (HCl) will take all of the MAGNESIUM in the oxide and change it into magnesium chloride, MgCl2 You will add 100 ml of 1.0 M HCl to the 0.50 g of magnesium ...
  60. chemistry

    7. Write the balanced equation for the equation for the reaction of magnesium with HCl. What is the mole ratio between magnesium and magnesium chloride will be produced? If 2.5g of magnesium react, how many moles of magnesium chloride will be produced? How many grams of ...
  61. chemistry

    When magnesium is heated in air, it reacts with oxygen to form magnesium oxide. 2Mg + O2 --> 2MgO If the mass of the magnesium increases by 0.335 g, how many grams of magnesium reacted? A. 0.882 B. 0.441 C. 0.509 D. 1.02 E. Not enough Info
  62. chemistry

    What is the approximate energy required to raise the temperature of 5 L of air by 230 °C? The volume is held constant. (Assume air almost entirely consists of nitrogen, oxygen, and argon, and that it is initially at 273 K. Cv for nitrogen=20.7,oxygen=21 and argon=12.5 ...
  63. chemistry

    What is the approximate energy required to raise the temperature of 5 L of air by 230 °C? The volume is held constant. (Assume air almost entirely consists of nitrogen, oxygen, and argon, and that it is initially at 273 K. Cv(specific heat) for nitrogen=20.7,oxygen=21 and ...
  64. Science

    Nitrogen in air is int he form of two nitrogen atoms fastened together, N2. Is Nitrogen an element or is it a compound?Explain. PLease help me! I need help really badly! please help !!! Fast!!
  65. Chemistry

    a 6 g sample of magnesium was burned in a crucible producing 10 g of magnesium oxide. What mass of oxygen reacted with magnesium to form the 10 g of magnesium oxide?
  66. science

    How do you calculate the atomic mass of magnesium? 79% magnesium-24, 10% magnesium-25, 11% magnesium-26
  67. CHEMISTRY! NEED HELP FAST!

    if 250 ml of oxygen at stp are consumed when magnesium burns, how many grams of magnesium oxide? [Mg(s) + O2(g) ---> MgO(s)]
  68. Chemistry

    A 3.214-g sample of magnesium reacts with 8.416g of bromine. The only product is magnesium bromide. If 1.934g of magnesium is left unreacted, how much magnesium bromide is formed? -Sorry, I've completely forgot how to do this..please help
  69. science

    Which compound is formed when magnesium oxide combines with nitrogen gas?
  70. Chemistry

    If the 3 moles of Calcium Nitride was then dissolved in 2 L of liquid ammonium what would the molarity of the Calcium Nitride /ammonium solution be?
  71. chemistry

    mass of dry crucible=34.69g mass of crucible with magnesium=34.68g mass of crucible with magnesium oxide =34.97g we did a lab and igot the mass for magnesium to be 0.17g and the mass for magnesium oxide to be 0.28g. how can i find the moles of magnesium and the number of ...
  72. chemistry

    Nitrogen gas, N2, is usually a very inert gas and thus, is often employed in dry boxes. However, it would be a poor choice for use in a dry cell with which of the following substances? A) uranium metal B) Cu/Sn alloys C) Li metals D) Ca metals E) none of these can anyone help ...
  73. Stiochiometry

    Equation 2Mg+O2= 2MgO Lab data: Magnesium ribbon= .04 grams Magnesium Oxide= .09 2. Using the initial mass of magnesium, calculate the moles of oxygen and then moles of magnesium oxide produced. What is the mole ratio of the reactants? 3. Calculate the mass of magnesium oxide ...
  74. chemestry

    Based upon the previous two questions, consider the magnesium nitride addition reaction again. This time, suppose you start with 10.0 g of each reactant. What is the maximum number of MOLES of Mg3N2 that could be produced in this case? Remember that the reactant that runs out ...
  75. chemistry

    I need to write a balanced equation and indicate the type of reaction phosphoric acid + magnesium hydroxide= magnesium phosphate+ water
  76. Science question, only 1

    What would be the consequence of an ecosystem that had no nitrogen-fixing bacteria? Nitrogen from decomposing animals would never be returned to the soil. Decomposers would not be able to break down the nitrogen present in plants they feed on. Plants would have to rely on ...
  77. Chemistry

    Consider the reaction: 3Ba(s)+N2(g)--->Ba3N2(s) 1)How many moles of barium metal react to produce 0.190 mol of barium nitride? 2)How many moles of nitrogen gas react?
  78. HEalth

    how much carboydrates we need in percentage in a day how much Fats we need in a day in percentage Why do we need fat how much percentage of protein we need what is complex carbohydreates
  79. Science check my answers

    Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? denitrification*** nitrogen fixation producer uptake of nitrogen consumer decomposition Which of the following is carried out by denitrifying bacteria? break down large, nitrogen-...
  80. physical science

    Predict which isotope of nitrogen is more commonly found, nitrogen-14 or nitrogen-15.(Hint: What is the average atomic mass listed for nitrogen in the periodic table?)
  81. chem

    Magnesium hydroxide is produced by reacting magnesium oxide with excess water. If the reaction has an expected yield of 81%, how much magnesium oxide should be reacted to produce 98.0 g of magnesium hydroxide?
  82. Chemistry Lab MgO

    If in Part B.2, the burning of the magnesium is uncontrolled (burns brightly), how will this procedural error affect the reported mass of: a Magnesium in the magnesium oxide? Explain. B. oxygen in the magnesium oxide? Explain.
  83. chem

    Magnesium hydroxide is produced by reacting magnesium oxide with excess water. If the reaction has an expected yield of 81%, how much magnesium oxide should be reacted to produce 98.0 g of magnesium hydroxide? MgO(s)+H2O(l)->Mg(OH)2(aq)
  84. Chemistry

    Naturally occurring magnesium consists of Magnesium-24 (23.9850 amu; 78.99%), Magnesium-25 (24.9858 amu), and Magnesium-26 (25.9826 amu). Using the average atomic mass from the periodic table, calculate the closest percent abundance of Magnesuim-26. a) 29.30% b) 8.993% c) 10....
  85. chemistry

    Many analytical instruments require liquid nitrogen. While filling an instrument with liquid nitrogen, an analytical chemist slips and spills the contents of the dewer, 25L, onto the floor. Since the boiling point of liquid nitrogen at 1atm is 77.4 K, all the nitrogen boils ...
  86. Chemistry

    Calcium carbonate is insoluble in water. Name two substances that when mixed in solution, will form a precipitate of calcium carbonate. Explain why is it the two substances that you have chosen.  why does magnesium chloride cannot be prepared in the lab by the reaction of ...
  87. Chemistry

    4.13 grams of magnesium chloride were recovered after the chemical reaction between magnesium and chlorine gas occurred. If 7.10 grams of magnesium chloride was suppose to be produced, what is the percent yield of magnesium chloride?
  88. chemistry

    A piece of magnesium weighing 48 grams is burned in air n 80 gram of magnesium oxide is formed. what mass of oxygen combined with the magnesium is in the reaction?
  89. Chemistry

    Many analytical instruments require liquid nitrogen. While filling an instrument with liquid nitrogen, an analytical chemist slips and spills the contents of the dewer, 29.0 L, onto the floor. Since the boiling point of liquid nitrogen at 1.00 atm is 77.4 K, all the nitrogen ...
  90. Science

    1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? A. Nitrogen-Fixing Bacteria *** B. Denitrifying Bacteria C. Decomposers D. Producers 2. Which step in the nitrogen cycle is accelerated at the beginning of...
  91. chem

    Magnesium is a chemical element with symbol Mg and atomic number 12. Magnesium only occurs naturally in combination with other elements. It is the one of the least dense of all metals and burns in air with a brilliant-white light. Magnesium is a highly flammable metal, ...
  92. Science

    A piece of magnesium ribbon weight 24g is burn in air an 40g magnesium oxide is formed. What mass of oxygen combined with the magnesium in this reaction
  93. chemistry

    When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 4.8 M is required to react completely with 2.60 g of magnesium?
  94. Chemistry

    Describe how you can show that a chemical reaction adhers to the law of conservation of mass. Chemical reaction: magnesium hydroxide added to phosphoric acid produces magnesium phosphate and water. Find the mass percentage of each compound as well as the total mass of ...
  95. AP Chemistry

    When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 5.0 M HCI is required to react completely with 3.00 g of magnesium?
  96. Chemistry

    When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 9.0 M HCl is required to react completely with 5.00 g of magnesium?
  97. Physics of materials

    Gaseous nitrogen has a density of 1.17 kg/m3 and liquid nitrogen has a density of 810 kg/m3. [The relative molecular mass of nitrogen is 28.0] What is the mean volume per nitrogen molecule in each case? What is the mean separation between nitrogen molecules in each case?
  98. Material Physics

    Gaseous nitrogen has a density of 1.17 kg/m3 and liquid nitrogen has a density of 810 kg/m3. [The relative molecular mass of nitrogen is 28.0] What is the mean volume per nitrogen molecule in each case? What is the mean separation between nitrogen molecules in each case?
  99. Chemistry PLS HELP

    The cover plate is removed from the gas jars shown iin the diagram. Nitrogen dioxide is a brown gas. After several days, the color of the gas is the same in both of the jars. What explains this change? So the picture shows this jar and nitrogen and nitrogen dioxide is ...
  100. ayo science help pls? my answers

    1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? A. nitrogen-fixing bacteria B. denitrifying bacteria C. decomposers D. producers 2. Which step in the nitrogen cycle is accelerated at the beginning of the...
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