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If 9.66g of Hexane and 8.33g of C6H12O make a mixture that is 25.0mL, what is the % compostition of both of the components, which is the limiting reagent (if there is) and what is the theoretical yeild of each of them.
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How many molecules of butane (C4H10) are contained in a 9.213 g sample? How many hydrogen atoms are contained in this sample?
How many moles of magnesium ion are present in 5.25g Mg 3 (PO 4 ) 2 ?
2KMnO 4 (s) → K 2 MnO 4 (s) + MnO 2 (s) + O 2 (g) If 2.50 L of O 2 (g) is needed at 1.00 atm and 20°C, what mass of KMnO 4 (s) should be decomposed? Assume the decomposition of KMnO 4 (s) goes to completion.
Why do the instructions call for using a saturated solution of NaOH rather than one at lower concentration? Why can we ignored in the calculation of the concentration of NaOH?
An iron skillet weighing 1.28kg is heated on a stove to 178°C. Suppose the skillet is cooled to room temperature., 21°C. How much heat energyin joules must be removed to effect this cooling? The specific heat of iron is ...
Consider the following questions: (a) What is the total volume of the CO2(g) and H2O(g) at 600 °C and 0.888 atm produced by the combustion of 1.00L of 2H6(g) measured at STP? (b) What is the partial pressure of H2O in th ...
Calculate volume in milliliters of a 1.96 mol/L calcium bromide solution that contains 275. mmol of calcium bromide CaBr2. Round your answer to 3 significant digits.
Do you notice any trends or can you make any generalizations about where certain types of liquids fall on the pH scale?
A mixture containing 3.3 moles of NO and 0.76 mole ofCO 2 was allowed to react in a flask at a certaintemperature according to the equation. NO (g) + CO 2 (g) ↔ NO2 (g) + CO (g) At equilibrium 0.21 mole of CO 2 was pr ...
A student takes 5.0mL of a stock FeSCN2+ solution and dilutes it with deionized water to a volume of 50mL. He then puts the solution in a Spectronic 20 instrument and determines the the % transmittance of the new solutio ...
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