3. Chemical Reactions

In the reaction N_2 + 3H_2 ightarrow 2NH_3, how many grams of ammonia (NH_3) are produced when 1.0 mole of nitrogen gas (N_2) reacts completely with excess hydrogen gas?

According to the reaction Al2S3(s) + 6 H2O(l) → 2 Al(OH)3(s) + 3 H2S(g), what mass of Al2S3 remains unreacted when 20.00 g of Al2S3 and 2.00 g of H2O are reacted? The molar masses are: Al2S3 = 150.17 g/mol, H2O = 18.02 g/mol.

In the reaction N_2 + 3H_2 → 2NH_3, how many moles of hydrogen gas (H_2) are required to completely react with 0.850 moles of nitrogen gas (N_2)?

What mass of KBr is required to prepare 35.0 mL of a 1.80 M KBr solution?

According to the reaction 2 LiOH + FeCl2 → 2 LiCl + Fe(OH)2, how many moles of Fe(OH)2 can be formed from 175.0 mL of 0.227 M LiOH solution?

How many grams of CuSO_4·5H_2O are required to prepare 25 mL of a 0.020 M stock solution?

Calculate the mass of 4.50 × 10²⁵ O₃ molecules.

If 60 grams of ethane (C_2H_6, molar mass 30 grams/mol) react completely with excess oxygen according to the equation 2 C_2H_6 + 7 O_2 → 4 CO_2 + 6 H_2O, how many moles of CO_2 are produced?

How many grams of O₂ are required to produce 9.64 g of H₂O in the combustion of butane according to the balanced equation: 2C₄H₁₀(g) + 13O₂(g) → 8CO₂(g) + 10H₂O(g)?

The first step in most stoichiometry problems is to ____.

Which of the following is the balanced chemical equation for the formation of calcium nitrate, Ca(NO3)2(s), from its respective elements in their standard states?

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is CH4(g) + O2(g) → CO2(g) + H2O(g). This type of reaction is referred to as a complete combustion reaction. What mass of carbon dioxide (CO2) is produced when 16 grams of methane is completely combusted?

How many moles of H₂ can be formed if a 2.83 g sample of Mg reacts with excess HCl according to the reaction: Mg + 2HCl → MgCl₂ + H₂?

In the reaction 4Al + 3O_2 → 2Al_2O_3, how many moles of O_2 are consumed when 8 moles of Al are reacted?