For number 5 to 7, consider the following reaction. The complete combustion of methane, CH., can be represented by the equation CH. (g) • 2 0, (g) co, (s) 2H,0 (g) 5. How many grams of CO, are formed from the combustion of 129 g methane? a. 43.6 g b. 54.5 g c. 264 g d. 330 g 6. How many litres of 0, are needed to produce 20 L CO, at STP? a. 10 L b. 20 L c. 22.4L d. 40 L 7. How many grams of water are produced from the combustion of 56 L CH, at STP? a. 45 g b. 63 g c. 90 g d. 126 g

For number 5 to 7, consider the following reaction. The complete combustion of methane, CH., can be represented by the equation CH. (g) • 2 0, (g) co, (s) 2H,0 (g) 5. How many grams of CO, are formed from the combustion of 129 g methane? a. 43.6 g b. 54.5 g c. 264 g d. 330 g 6. How many litres of 0, are needed to produce 20 L CO, at STP? a. 10 L b. 20 L c. 22.4L d. 40 L 7. How many grams of water are produced from the combustion of 56 L CH, at STP? a. 45 g b. 63 g c. 90 g d. 126 g

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Rererences A few hydrogen and oxygen molecules are introduced into a container in the quantities depicted in the following drawing. The gases are then ignited by a spark, causing them to react and form H2O, H2 a. Write a balanced chemical equation for the reaction. (Use the lowest possible coefficients. Omit states of matter.) b. What is the limiting reactant? O2 H2 There is no limiting reactant. c. What is the maximum number of water molecules that can be formed in the chemical reaction? water molecules
The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What mass of mixture has 5 gr caffeine? O a. 33.85gr O b. 5.747gr O. 9.615gr O d. 71.42gr
11.68 grams of titanium metal and 66.94 grams of chlorine are combined to make titanium tetrachloride. How many grams of TiCl would I expect to get out of this reaction? a. 31.93 grams O b. 469.19 grams O c. 358.16 grams d. 38.41 grams O e. 46.27 grams
9- An unknown compound is composed of C, H, and O. A 0.1005 g sample of this compound is combusted, producing 0.2829 g of CO, and 0.1159 g of H,0 The empirical formula of the compound is ... ..... ...
What percent by mass of iron(II) phosphate is iron? a.46.9 b.73.2% c.24.3%d.33.7%
please answer d.
6. A piece of iron wire has a diameter of 0.485 mm. If iron has a density of 7.86 g/cc, how long (in meters) should you cut a piece of wire to obtain 0.0214 moles of iron?
9. A 0.671 gram sample is known to contain only carbon, hydrogen and oxygen. Combustion analysis of the sample produces 1.2507 g of CO, and 0.5755 g of H,0. Determine the elemental carbon and hydrogen masses. Then subtract them from the sample mass to determine the mass of the oxygen.
Mass of H20 is 2.9445 g Mass of CO2 is 7.1918 g Moles of H20 is 0.1634 Moles of CO2 is 0.1634 Determine the Moles and Mass of H, C, O atoms
3. Elements X and Y readily react to form the compound XY. XY contains 40% X and 60% Y by mass. Which statement best explains the outcome, when 90 g of X and 90 g of Y are mixed? A. 180 g of XY will be produced. B. 90 g of XY will be produced C. Some X will be left over after the maximum possible XY is produced. D. Some Y will be left over after the maximum possible XY is produced. E. No reaction will occur since the reactants are not mixed in the correct ratio.
Answer the following question
just choose the letter of the correct answer