When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6 HCI(aq) 2 AICI, (aq) + 3 H,(g) > What volume of H, (g) is produced when 7.30 g Al(s) reacts at STP? volume of H,(g):

How many grams of AL were reacted with excess HCI if 4.78L of hydrogen gas were collected at STP in the following reaction? 2 AL (s) + 6 HCI (aq) = 2 AICI3 (aq) + 3 H2 (g)

what is the correct answer in this question

At 60ᵒC, 3.76 mol of NOBris placed in a 1.00 L flask and it dissociates to the extent of 6.9%, Calculate the value of Kcfor the dissociation reaction: 2NOBr(g) 2NO (g) + Br2(g)

Hydrogen gas (MW = 2.02 g/mol) can be produced from the reaction of methane (MW = 16.05 g/mol) and water vapor (MW = 18.02 g/mol) according to the following reaction equation (called methane reforming):  CH4(g) + H2O(g) --> CO(g) + 3 H2(g)    If 262 g of CH4 reacts with excess H2O at 423 K and 0.862 atm, what volume of H2 gas will form?

2H3PO4(s) --> 3 H2(g) + 2 P(s) + 4 O2(g) Using the reaction above, show step by step how many liters of oxygen can be created if I start with 0.7156 grams of H3PO4 solid at STP?

To the nearest 0.1 g, how many grams of a candle wax from a different brand of candle can be burned in 5-gallon container sealed with air?  Assumptions (may or may not be needed): Complete combustion to CO2 and H2O; Candle wax reacts in a ratio of 1 mol wax: 40 moles O2; MW (wax) = 370 g/mol, Air = 21% oxygen, R= 0.082 L.atm.K-1.mol-1, 1 gallon = 3.785 L, T=278 K, P = 1 atm

#50 Part: (a) and (b)

Imagine that a chemist puts 4.33 mol each of C3H8 and O₂ in a 1.00-L container at constant temperature of 505 °C. This reaction occurs: C3H8(g) + 502(g) 3C0₂(g) + 4H₂O(g) When equilibrium is reached, 0.645 mol of CO₂ is in the container. Find the value of Keq for the reaction.

The human body burns glucose (C6H12O6) for energy according to this chemical reaction: C6H12O6+6O2→ 6CO2+6H2O The products of the reaction are carbon dioxide CO2 and water H2O Interestingly, all of the carbon dioxide and much of the water exits the body through the lungs: on every breath, the average person exhales 500.mL of air, which is typically enriched to 4% CO2 and 5% water vapor by volume. In short, when a person loses weight by dieting, the weight that is lost actually departs his body as a gas, every time he exhales. Each kilogram of body fat lost requires exhaling about 2.9kg of carbon dioxide. Calculate how many breaths it takes an average person to "exhale" 0.50kg  of fat. Round your answer to the nearest thousand. You'll need to know that the density of CO2 is 2.0 kg/m^3 .