Answer the following questions. Show the answers on the screen provided. After uploading your exam, take the pictures of your work and upload them to Exam 3 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. NO CREDIT will be awarded for the answer without work or justification shown. Consider the balanced equation 1 and answer the questions below. Show your work for the full credit.   2C2H6 (g)  + 5O2 (g) =>4CO (g) + 6H2O (l)     How many moles of water will form if 12.0 moles of O2 is used? (4)  If 5.0 moles of C2H6 is used, how many grams of water will form?(4) How many molecules are in 5.50 grams of C2H6? (1) What is the molarity of a solution prepared by dissolving 2.50g of C2H6 in 725mL of the non-aqueous solution? (4) How many moles of oxygen are needed to burn 1.1011 x1024 molecules of C2H6?(1)  Which reagent is a limiting reagent and how many moles of CO form when 12.0 mol C2H6 react with 32.0 mol of O2?(4)  Which reagent is a limiting reagent (2) and what is the theoretical yield in grams of CO (4) when 20.0 g C2H6 react with 20.0 g of O2? If  12.5 g of CO formed in reaction, what are the  actual, and percent yields of CO(2) Provide your answers below and upload your solutions  to Exam 3 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. NO CREDIT will be awarded for the answer without work or justification shown.

Polymers are large molecules composed of simple units repeated many times. Thus, they often have relatively simple empirical formulas. Calculate the empirical formulas of Saran; 24.8% C, 2.0% H, 73.1% Cl

A sample of Fe3(PO4)2 contains 2.55 mol of iron(II) ions. According to the MR from the formula, the number of moles of phosphate ions in the sample is:

The following is the balanced molecular equation for the stoichiometric reaction between H2SO4 by KOH in aqueous solution.              

One mole of chromium nitrate  Cr(NO3)3 contains ________ moles of oxygen (Hint: Use mole ratio from the formula).

Calculate the molar mass in grams per mol for aluminum sulfate hexadecahydrate Al2(SO4)3·16H2O 

Predict the products of a reaction between Ba(NO3)2(aq) and K2SO4(aq).    (Hint: DO NOT FORGET TO BALANCE CHARGES OF IONS IN THE FORMULAS)  

How many moles of chromium atoms are contained in 7.54 g of chromium?

What is the net ionic equation for a reaction between a weak acid and strong base.  

A solution is prepared by dissolving 17.32 g of K3PO4(MM=212.2663g/mol),  in enough water to make 375 mL of solution.  What is the concentration of the solution in units of molarity?