A biogas-plant converts biomass into methane. From a certain substrate, 52% (w/w) methane can be obtained. a) How many biomass (in kg) is needed, to produce 2500kg of methane?

how many milligrams of methane are required in its complete combustion with excess of oxygen to form 0.057 g of carbon dioxide?                    CH4(g)+2O2(g)--->CO2(g)+2H2O(l).

Write and balance the reaction for the complete combustion of hexene, C6H12. (Use the lowest possible whole number coefficients. Omit states-of-matter from your answer.)

a) Explain why industrial manufacturers of hydrogen may choose to use reformation of natural gas to produce hydrogen instead of splitting water.  You may need to read  17 “Sustainable Development Goals” of the United Nations to answer this question.  https://www.acs.org/content/acs/en/sustainability/chemistry-sustainable-development-goals b) Which two Sustainable Development Goals are directly relevant to “Energy Use and the Environment”?

Be sure to answer all parts. How many moles are contained in each number of grams of fructose  (C6H12O6,  molar mass  180.2 g/mol),  a carbohydrate that is about twice as sweet as table sugar?  "Lite" food  products use half as much fructose as table sugar to achieve the same sweet taste, but with fewer calories.  Enter your  answer in scientific notation. a. 29.0 g     b. 0.0430 g

[References] Use the References to access important values if needed for this question. Combustion reactions are exothermic. The heat of reaction for the combustion of cyclobutane, C,Hg, is 650.3 kcal/mol. What is the heat of combustion for cyclobutane in kcal/gram? kcal/gram How much heat will be given off if molar quantities of cyclobutane react according to the following equation? C,Hg + 6 O2→4 CO2 +4 H,O kcal Submit Answer Try Another Version 3 item attempts remaining Ne Previous Sa Cengage Learning | Cengage Technical Support

A) Given the standard enthalpy changes for the following two reactions:(1) 2C(s) + H2(g)C2H2(g)...... ΔH° = 226.7 kJ(2) 2C(s) + 2H2(g)C2H4(g)......ΔH° = 52.3 kJwhat is the standard enthalpy change for the reaction:(3) C2H2(g) + H2(g)C2H4(g)......ΔH° = ?------- kJ B)  Given the standard enthalpy changes for the following two reactions:(1) 2Pb(s) + O2(g)2PbO(s)...... ΔH° = -434.6 kJ(2) Pb(s) + Cl2(g)PbCl2(s)......ΔH° = -359.4 kJwhat is the standard enthalpy change for the reaction:(3) 2PbCl2(s) + O2(g)2PbO(s) + 2Cl2(g)......ΔH° = ?------ kJ

The 24 power plants in Baltimore metro area collectively emit about 40,300 metric tons of CO2 per day (www.carma.org), thereby increasing the level of greenhouse gases in this region. To counter this, environmentalists plan to plant trees in the area. How many moles of CO2 are emitted by these power plants every day? (1 ton =1000kg, molecular weight of CO2 is 44g) If on average 500 moles of glucose are synthesized by a tree each day, how many moles of CO2 can a single tree convert to glucose in a single day? How many trees need to be planted to reabsorb all the CO2 released into the atmosphere every day by these power plants? If a single tree occupies an average of 8.00 x 10-5 sq miles, what percent of the area of Baltimore city needs to be forested to counter the CO2 emitted from power plants alone?  (total area of Baltimore city is 92.00 sq miles)

How many g of CO2 will be produced by the combustion of 4 mol of ethanol?

Can you help me solve #4?