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QUESTIONS It was determined that...
just wanted to know if i got theese questions right and if i didnt whats the...
just wanted to know if i got theese questions right and if i
didnt whats the correct answrr ?
QUESTIONS It was determined that 1.4 x 1024 carbon dioxide molecules are produced when propane is combusted according to the equation below. Calculate the number of moles of propane that was burned. note: Make sure you have the right number of sig figs. For decimal answers, make sure you write the zero. Example: 0.99 0.77moles QUESTION 6 Calculate how many moles...
no need to explain just give me a number fir each box Consider the following reaction:...
no need to explain just give me a number fir each box
Consider the following reaction: 2 Al + 6 HBr + 2 AlBr3 + 3 H2 When 1.61 moles of Al reacts with 4.96 moles of HBr, how many moles of H2 are formed? What is the limiting reactant? For the reactant in excess, how many moles are left over at the end of the reaction? For decimal answers, include the zero (ex. 0.99). Make sure you have the...
no need to rxplain just need answer for each box QUESTION 8 Which is the limiting...
no need to rxplain just need answer for each box
QUESTION 8 Which is the limiting reactant when 5.00 g of H, and 10.0 g of O, react and form water? 02 How much water is produced? 0.03 g How much excess reagent remains? 3.8 g Hint: Write and balance the chemical equation first. Write only the formula and ignore the subscript (ex sure you have the right sig figs.
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia...
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia will be required to produce 10.5 mol of water a. 4.20 mol b. 10.5 mol c. 7.00 mol d. 5.25 mol e. none of these 46. Refer to the following equation: 4NH3(Ⓡ) + 702() → 4NO2(%) +6H20(g) How many molecules of NO2 are produced when 4.16 mol of ammonia is completely reacted a. 16.64 b. 5.01 X 1024 c. 2.51 1024 d. 191 e....
12. Calculate the number of moles containing each of the following (a) 1.00 x 1022 atoms...
12. Calculate the number of moles containing each of the following (a) 1.00 x 1022 atoms of cobalt, Co (b) 2.00 x 1023 molecules of carbon dioxide, CO2 (c) 3.00 x 1024 formula units of cobalt(II) carbonate, COCO,
Lab 4 Homework Questions Make sure to completely answer each of the following questions. This will...
Lab 4 Homework Questions Make sure to completely answer each of the following questions. This will be due at the state following lab. w ill construct Lewis structures of molecules that you will use in Lab 5. Structures and Shane acules This work must be completed before you will be allowed to participate in a Draw the following Lewis structures, and use them to complete the table. Nitrogen (N2) Ammonia (NH3) Methane (CH) Formaldehyde (CH20) Water (H20) Carbon Dioxide (CO2)...
no explanation just need to know what goes in box QUESTION 6 Determine the mass of...
no explanation just need to know what goes in box
QUESTION 6 Determine the mass of zirconium silicon , and oxygen found in 0.3384 mol of zircon, ZrSio, a semiprecious stone. Your answer must have the correct number of significant figures. QUESTION 7 How many moles are there in 2.35 x 1024 molecules of water?
what is the answer ? A major component of gasoline is octane (CHx). When liquid octane...
what is the answer ?
A major component of gasoline is octane (CHx). When liquid octane is burned in air it reacts with oxygen () gas to produce carbon dioxide gas and water vapor. Calculate the moles of oxygen needed to produce 0.070 mol of water. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits. 00 0 dhe X
Please answer part 1 and 2. On part 2, I keep getting the wrong sig figs...
Please answer part 1 and 2. On part 2, I keep getting the wrong
sig figs please make sure they are correct. Thank you!
Part 1:
Part 2:
A chemist dissolves 669. mg of pure sodium hydroxide in enough water to make up 170. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits. x 6 ? Complete the following table, which...
Please answer ALL questions, not just 1. Specifically in need for 3-8. 1. Determine the formula...
Please answer ALL questions, not just 1. Specifically in need for 3-8. 1. Determine the formula weight for each compound: sulfur tetrafluoride, carbon dioxide, sodium chloride, phosphorus pentafluoride, calcium phosphate, water, propane (C3H8), iron(III) sulfate. Which compounds would also have a molecular weight or molar mass? What is the difference between a formula weight and a molecular weight? 2. Determine the percent composition for each compound in question 1. Is it possible for two compounds to have the same percent...
just wanted to know if i got theese questions right and if i
didnt whats the correct answrr ?
QUESTIONS It was determined that 1.4 x 1024 carbon dioxide molecules are produced when propane is combusted according to the equation below. Calculate the number of moles of propane that was burned. note: Make sure you have the right number of sig figs. For decimal answers, make sure you write the zero. Example: 0.99 0.77moles QUESTION 6 Calculate how many moles...
no need to explain just give me a number fir each box
Consider the following reaction: 2 Al + 6 HBr + 2 AlBr3 + 3 H2 When 1.61 moles of Al reacts with 4.96 moles of HBr, how many moles of H2 are formed? What is the limiting reactant? For the reactant in excess, how many moles are left over at the end of the reaction? For decimal answers, include the zero (ex. 0.99). Make sure you have the...
no need to rxplain just need answer for each box
QUESTION 8 Which is the limiting reactant when 5.00 g of H, and 10.0 g of O, react and form water? 02 How much water is produced? 0.03 g How much excess reagent remains? 3.8 g Hint: Write and balance the chemical equation first. Write only the formula and ignore the subscript (ex sure you have the right sig figs.
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia will be required to produce 10.5 mol of water a. 4.20 mol b. 10.5 mol c. 7.00 mol d. 5.25 mol e. none of these 46. Refer to the following equation: 4NH3(Ⓡ) + 702() → 4NO2(%) +6H20(g) How many molecules of NO2 are produced when 4.16 mol of ammonia is completely reacted a. 16.64 b. 5.01 X 1024 c. 2.51 1024 d. 191 e....
12. Calculate the number of moles containing each of the following (a) 1.00 x 1022 atoms of cobalt, Co (b) 2.00 x 1023 molecules of carbon dioxide, CO2 (c) 3.00 x 1024 formula units of cobalt(II) carbonate, COCO,
Lab 4 Homework Questions Make sure to completely answer each of the following questions. This will be due at the state following lab. w ill construct Lewis structures of molecules that you will use in Lab 5. Structures and Shane acules This work must be completed before you will be allowed to participate in a Draw the following Lewis structures, and use them to complete the table. Nitrogen (N2) Ammonia (NH3) Methane (CH) Formaldehyde (CH20) Water (H20) Carbon Dioxide (CO2)...
no explanation just need to know what goes in box
QUESTION 6 Determine the mass of zirconium silicon , and oxygen found in 0.3384 mol of zircon, ZrSio, a semiprecious stone. Your answer must have the correct number of significant figures. QUESTION 7 How many moles are there in 2.35 x 1024 molecules of water?
what is the answer ?
A major component of gasoline is octane (CHx). When liquid octane is burned in air it reacts with oxygen () gas to produce carbon dioxide gas and water vapor. Calculate the moles of oxygen needed to produce 0.070 mol of water. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits. 00 0 dhe X
Please answer part 1 and 2. On part 2, I keep getting the wrong
sig figs please make sure they are correct. Thank you!
Part 1:
Part 2:
A chemist dissolves 669. mg of pure sodium hydroxide in enough water to make up 170. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits. x 6 ? Complete the following table, which...
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