Page 1 of 1
8.) Know how to calculate molar mass. Example: What is the molar mass of K2Cr2O7 ? (294.181 g/mol) 9.) Know how to us
Posted: Fri Jul 15, 2022 5:02 pm
by answerhappygod
- 8 Know How To Calculate Molar Mass Example What Is The Molar Mass Of K2 Cr2 O7 294 181 G Mol 9 Know How To Us 1 (66.59 KiB) Viewed 36 times
8.) Know how to calculate molar mass. Example: What is the molar mass of K2Cr2O7 ? (294.181 g/mol) 9.) Know how to use molar mass as a conversion factor. Example: How many moles of sucrose are there in 148mg of sucrose, C12H22O11 ? (The molar mass of sucrose is 342.34 g/mol)(4.32×10−4 mol) 10.) Know your stoichiometry (mole to mole ratios from balanced equations). Example: How many moles of iron(III) oxide can be produced by the reaction of 1.74 moles of iron according to the following balanced equation? (0.870 moles) 4Fe+3O2→2Fe2O3 Page 1 of 5 Example: How many grams of magnesium are required to produce 5.19 grams of silver in the reaction below? (0.585 grams Mg) Mg(s)+2AgNO3(aq)→Mg(NO3)2(aq)+2Agg(s) Example: When 1.45 g of Cu reacts with 3.14 grams of O2, which species is completely used up?(Cu) What is the limiting reactant? (Cu) How many grams of CuO are produced? (1.82 gCuO) 2Cu+O2→2CuO