This question already has all soltions. Please show the steps how the answers m% in red was calculated, m%=mass %

bctions: Show your solution in the space provided. Follow the GFFSA (Given, Find, ymula, Solution, Answer) format if possible. Write your answers in the space provided. 1. Combustion of hydrocarbons like methane (CH4) produces two products, water (H2O) and carbon dioxide (CO2). Consider the chemical equation of this combustion: CHA + 2 02 - CO2 + 2 H2O, when 4 mol of CH4 reacts with 4 mol of O2, how many moles of CO2 are formed? What is the limiting reactant? 2. How many grams of lead II chloride are produced from the reaction of 16.2 g of NaCl and 62.0 g of Pb(NO3)27 What is the limiting reactant? How much excess is left over?

g and lear X Your one-time code - escobedoa x G how do you cover a ml to liter -x + keAssignment/takeCovalentActivity.do?locator-assignment-take Use the References to access important values if needed for this question. According to the following reaction, how many moles of carbon dioxide will be formed upon the complete reaction of 31.9 grams of carbon (graphite) with excess oxygen gas? C(s) + O₂(g) → CO₂(g) mol carbon dioxide Submit Answer Q Search L Retry Entire Group Ws LPI 2 more group attempts remaining BAGNOdı hp ☆ 口 Previous OG 1 6:5 5/18/

Say you have a stock of 15% NaCl and need a reaction concentration of 1% in a total reaction volume of 25ul.  How many ul of the 15% NaCl stock would you need to add to the reaction tube?

A 103.0 mL aqueous solution of 43.0 mM COCI2 is combined with 594.0 mL of aqueous 74.0 mM K3PO4. If the limiting reagent is completed consumed during this reaction, how many grams of solid precipitate will be produced? Express your answer in units of grams using at least three significant figures.

Using molarity to find solute mass and solution volume g 3/5 A chemist adds 105.0 mL of a 0.721M barium chloride (BaCl₂) solution to a reaction flask. Calculate the mass in grams of barium chloride the chemist has added to the flask. Round your answer to 3 significant digits. Ś Uyen Kha "...

0.279 g of the hydrate CoCl2•nH2O is heated to produce 0.197 g of anhydrous CoCl2 (MM = 129.83 g/mol).  We want to use this to determine n, how many waters of hydration were in the original sample, be the end of the questions that follow. How many grams of water were in the original 0.279 g of hydrate? How many grams of CoCl2 were present on the original 0.279 g of hydrate?  So ... we now have (as a result of the previous two questions) what we need to know to determine the empirical formula of CoCl2•nH2O. We can look at CoCl2•nH2O  in this way (CoCl2)x•nH2O.  Recalling that x and n are whole number molar ratios ... use the results of the last two problems to determine the correct formula.

A student was asked to calculate the mass of NaCl (in g) needed to create 500 g of 10 % NaCl solution. The student's work is below. Explain the student's mistake and identify what the correct answer should be. Given Looking for 500g I0% Na CI 9 Na Cl formula : %. = Solute in 9 x 100 Sdution in 9 Work (0 =X 500 X 100 10 X 10 = x 500 Answer = 0.2 g of Nacl lo0 500 0.2 %3D BI U Format ...

Can you please help me solve this

How much 20.0% NaOH should I put in a 30.0 ml tube if my dilution ratio is 1/10. What is the concentration of the tube. ml of 20.0% Just put the number of mL Do not enter anything but a number. Use correct sig figs. Remember ratios and conversion factors do not enter the significant figure calculation. What is the concentration in percent. Again, correct significant figures. NUMBERS only not the % sign