2 Set the MicroLab collection increment to 5 seconds, using the detailed instructions provided in the lab. 3 Measure about 40 mL of deionized water with a graduated cylinder and add to a 150 mL beaker and heat to between 60 and 70 C. Work on steps 4 and 5 while the water is heating.

Figure 2.2 Scientific Notation on a Calculator This calculator shows only the coefficient and the power of 10 to represent the number in scientific notation. Thus, the number being displayed is 3.84951 1018, or 3,849,510,000,000,000,000. 2.1 Expressing Numbers 41

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According to avogadro's law, 1 mole of every substance weighs equal to molecular mass , occupies 22.4 L at STP and contains avogadro's number of particles. To calculate the moles, we use the equation: Given mass of ethanol = 0.2301. Molar mass of ethanol = 46.07 g/mol. Thus there are moles of ethanol are present in the sample.

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Mar 09, 2011 · b. The reaction intermediate is COCl - it is produced during the first step but immediately used up in the second step.: c. The catalyst is Cl - a catalyst can be identified by the fact that it is added as a reactant but emerges (as a product) unchanged; thus it will always first appear as a reactant but will later (not necessarily the next step) appear as a product in the reaction. In a certain experiment 2.00 moles of NH3(g) and 10.00 moles. of O2(g) are contained in a closed flask. After the reaction is. complete, 6.75 moles of O2(g) remains. Calculate the number. of moles of NO(g) in the product mixture: (Hint: You cannot. do this problem by adding the balanced equations because you

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13N.2.sl.TZ0.6b: State the other substances required to convert 2-methylbut-2-ene to 2-methylbutan-2-ol. 13M.1.hl.TZ1.3: Which graph represents the relationship between volume and pressure for a fixed mass of gas at...

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Mar 07, 2018 · 16 11 Two tailors, A and B, earn Rs 300 and Rs 400 per day respectively A can stitch 6 shirts and 4 pairs of trousers while B can stitch 10 shirts and 4 pairs of trousers per day To find how many days should each of them work and if it is desired to produce at least 60 shirts and 32 pairs of trousers at a minimum labour cost, formulate this as an LPP 12 Let E and F be events with P(E) =35, P(F ...