2 NH3   +  3 CuO   -->  3 Cu   +   N2   +   3 H2O In the above equation how many moles of  N2 can be made when 152.6 grams of CuO are consumed? Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0 Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.: Element Molar Mass Hydrogen 1 Nitrogen 14 Copper 63.5 Oxygen 16

How many grams of H₂O are formed when 89.6 g of Si₂H6 reacts with excess O2 in the following reaction: 2Si₂H 6 + 70 24SiO 2 + 6H₂O Do not put units in your answer. Use 1 decimal places.

Florasulam is an herbicide with the chemical formula C12H8F3N5O3S. Answer the questions below concerning samples of Florasulam.[Note: Very large numbers requiring scientific notation can be entered as they appears on your calculator screen. 1.25×1022 would be entered as 1.25E23.]• How many moles of Florasulam are present in 42.50 grams of Florasulam? Answer moles• How many molecules of Florasulam are present in 42.50 grams of Florasulam? Answer molecules• How many atoms of nitrogen are present in 0.0060 moles of Florasulam? Answeratoms• How many moles of oxygen are present in 5.00 grams of Florasulam? Answer moles

A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands for a number the student is going to calculate.) Enter the units of the student's answer. mol H 3.7 7 (0.22 L) (136.95 ) = L mol

Consider the following chemical reaction HCl (aq)  + HgNO3 (aq) à Hg2Cl2 (s) + HNO3 (aq) If 20.0 grams of HCl is mixed with 30.0 grams of HgNO3     Determine the excess reactant   The amount of the solid precipitate that was recovered equals to .................. grams , if the percentage yield from this reaction was determined to be 78.4%. Write the net ionic equation for the chemical reaction   Determine the type of this chemical reaction

Nitrogen dioxide is produced by combustion in an automobile engine. For the following reaction, 0.192 moles of nitrogen monoxide are mixed with 0.124 moles of oxygen gas. nitrogen monoxide(g)+oxygen(g)=nitrigen dioxide(g) What is the formula for the limiting reagent?   What is the maximum amount of nitrogen dioxide that can be produced?  moles

Fe2O3(s)  +  2 Al(s) ------>  Al2O3(s)   +   2 Fe(l) 159.70           26.98                101.96             55.85      Molar masses in g/mol If 50. g of iron (III) oxide are combined with 45 g of aluminum how many grams of aluminum oxide are formed?

A compound is composed of the elements, carbon, hydrogen, and oxygen only. Combustion of the compound produces CO2 and H2OC?H?O? + O2 ➝ CO2 + H2OCombustion of a 10.000 g sample of the compound produces the products shown in the table below. Product Mass (grams) CO2 22.837 H2O 5.843             Determine the empirical formula for the compound. [If an element has a subscript of 1, enter 1]Empirical Formula: CAnswerHAnswerOAnswer

Enter the coefficients directly from the balanced chemical equation. Do not reduce to lowest terms. For example: If 3 moles H2 react with 3 moles O2, enter "3" for each, not "1". According to the following reaction: 2NO (g) + 2H2 (g) → N2 (g) + 2H2O (1) What would you multiply "moles of nitrogen monoxide" by to convert to the units "moles of water" ? (number) (unit) moles NO = moles H20 (number) (unit) Submit Answer Retry Entire Group 9 more group attempts remaining

How many molecules of hydrogen fluoride (HF) are in (2.1x10^-2) moles of hydrogen fluoride (HF)? For Avogadro's number use:  6.022 x 1023 Round your answer to two significant figures. For the unit, use the word molecule. (Please show me how to work. Thank you)