please show work. Chromium metal reacts with oxygen to make chromium (III) oxide with this reaction: Cr + O2---> Cr2O3 initially 15.0 g of chromium and 25.0g of oxygen are present. what is the limiting reagent? what mass of chromium (II) oxide is produced? (In grams) what mass of the excess reagent remains at the end of the reaction? (In grams)

please show work. Chromium metal reacts with oxygen to make chromium (III) oxide with this reaction: Cr + O2---> Cr2O3 initially 15.0 g of chromium and 25.0g of oxygen are present. what is the limiting reagent? what mass of chromium (II) oxide is produced? (In grams) what mass of the excess reagent remains at the end of the reaction? (In grams)

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.6PAE: Use the web to determine the differences in the amounts of aluminum recycled in states where there...

See similar textbooks

Similar questions

How many grams of copper will be produced from combining 3.00 grams each of Zn and aqueaous CuCl2? I know how to set up ratios and stuff but I am confused at how to figure out what it yields to and just what the answer is in general. Could you please solve this and explain to me the answer and why/how you got it?
A sample of an industrial waste water is analyzed and found to contain 16.5ppb Fe2+. How many grams of iron could be recovered from 1.81×103 kg of this waste water? Answer:_______ grams Fe
27.22 grams of CS2 (MW= 76.13 g/mole) are reacted with 31.36 grams of Cl2 (MW=70.91 g/mole) and 16.1 grams of CCl4(MW=153.82) are produced. Answer the following questions based on the balanced reaction and information below: CS2 + 3 Cl2 à CCl4 + S2Cl2 a. Identify the limiting and excess reagents.
Chemistry PLEASE HELP! THANK YOU 1. Define hydrate. 2. Name each of the following hydrates. A. CuCl2·3H2O ____________________________________ C. BeSO4·4H2O ____________________________________ 3. Complete the following equation and balance. B. LiClO4·3H2O → 4. A hydrate of Na2B4O7 · x H2O was heated to obtain the following data. Empty crucible 14.550 g Crucible + hydrate 19.552 g Crucible + contents after first heating 17.199 g after second heating 17.188 g A. Calculate the mass of the anhydrous Na2B4O7 obtained after heating . B. Convert this mass of Na2B4O7 to moles of Na2B4O7. C. Calculate the mass of water driven off by the heating. D. Convert this to moles of water. C. Find the mole ratio of H2O to Na2B4O7. D. What is the formula of this hydrate? Na2B4O7 ·? H2O ___________
Thank you for your explanation, I'm however confused by the multiplication of each. For example, the first one mentions x 3 to CuBr2 and x 2 to AlBr3, this process of cancelling out to create even moles is the balancing? I also wanted to know what the proper classification was for those three you answered? I felt like I had the first two wrong, I wasn't sure if they were single or double replacement.
South Africa is one of the world's largest ion ore producers. From the reaction below, answer the following questions on the iron ore extraction Fe2O3(s) + c(s) - Fe(l) + CO2(g) a. Give the correct chemistry name for Fe2O3 and CO2. B. If 9888.8 g of Fe2O3 and 1258.2g of C react, determine which reagents is the limiting reactant/reagents of the reaction. C. Calculate the theoretical yield of the reaction. D. If the foreman on side obtained 6.12g of Fe, for the reaction described in b above, what is the %yield of the reaction. E. The product Fe is in liquid format. Do you think this is correct or not and justify why you think so?
The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the watermolecules of crystallization.The data are for this experiment are given in the table below.Mass of empty crucible and cover 29.73 gMass of crucible, cover, and hydrated salt 32.72 gMass of crucible, cover, and anhydrous salt 31.52 gMolar mass of anhydrous salt 241.88 g/mol(i) Calculate the % composition by mass of water in the hydrated salt.(ii) Determine the value of x.(iii) M is in Period 4 of the Periodic Table of the Elements.If Y = NO3–, identify the element M.(iv) What is the name of this hydrated salt? ___
Thanks in advanced, these are just 4 step problems but this one has me stumped for some reason. Use to being given grams. Zinc metal reacts with hydrochloric acid ( Zn + 2HCl --> ZnCl^2 + H^2 ) You add .156 mole of hydrochloric acid solution to .145 mole of zinc in a beaker and waited several minutes for the reaction to complete. How many moles of ZnCl^2 was produced and what was the limiting reagent, Zn or HCl?
1. Balance the following equations:a) ____ Na2SO4(aq) + ____ Pb(C2H3O2)2(aq) → ____ NaC2H3O2(aq) + ____ PbSO4(s) i. How many moles of Pb(C2H3O2)2 are required to react with 1.67 moles Na2SO4? Use dimensional analysis.
For the following table fill in the missing values and calculate the theoretical yield. A + 2B à C moles 0.00242 0.00242 ?_________ MW ?_________ 98.06 164.16 g ?_________ ?__0.00002467_______ ?_________ mL 0.20 d(g/mL) 0.80
I know the answer is D, but I dont know why. Can you cleave anywhere on the molecule, or only on certain areas? not certain of the rules. Is abundance the m/z (molar mass) of the molecule? I calculated 102 for the molar mass , but that is not one of the options to choose as an answer. Please explain plainly
Consider the titanium thermite reaction: Ti2O3 (s) + 2 Al (s) -----> Al2O3 (s) + 2Ti (l) You attempt this reaction with 100.0g of Ti2O3 and 100.0g of 100.0g of powdered aluminum(Al). c) Determine the mass of liquid titanium produced by this reaction. d) What is the Percentage Yiled of liquid titanium if we were only able to produce 40.0g of the product?