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- A student wants to know how many grams of water are made from 5.00 grams of oxygen gas during the synthesis of water from basidelements. Which step should be substituted for the question marks? 2 Hz+ O2→2 H;0 5.0 g 02 1.0 moles 0, 1 31.998 g 02 18 g H,0 A. 1.0 mole 0, 2.0 mole H,0 B. 1.0 mole 0, 18 g H,0 C. 2.0 mole H,O 2.0 mole 0 D. 2.0 mole H, OQ1. Consider the following reaction: 2 KMnO4(aq) + 3 H₂SO4(aq) + 5 H₂O2(aq) Complete the table below (answers must be values with proper signs and units). A[H₂SO4)/At -0.156 mol L ¹5-1 ->> Δ[02]/ΔΙ 0.260 mol L¹ s1 K₂SO4(aq) + 2 MnSO4(aq) + 8 H₂O(1) + 5 02(aq) A[KMnO4]/At Reaction Rate -0.104 mal L'5" 0.052 MOLL'S!0.1000 g NiC03 are added to 2.50 L water. At equilibrium, how many grams of NICO3 remain undissolved? Ksp = 6.6 x 109 %3D MM = 118.7 g/mole Express the answer to 3 sig figs.
- 16. The combustion of gasoline (octane) in a car engine can be represented by the following equation: 2C3H18(1) + 2502(g) a. What mass of oxygen is used up to burn a full tank of 36.00 kg of gasoline? Text --> 16CO2(g) +18H20(g) b. Why might a vehicle that is calibrated to run perfectly at sea level run poorly at higher elevations? Text Тext According to the Canadian Automobile Association, the average Canadian drives 20,000 km/yr. C. Assuming that distance, how many more kg of carbon dioxide are added to the atmosphere each year by a Toyota Tacoma (fuel economy of 12.8 L/100 km) than a Toyota Prius (4.52 L/100 km)? The density of gasoline is 0.719 kg/L.9:08 PM ☹ & = ikf MB² = 5.12 °C/m 19²2- (-130%) = AT £ 1Jf=18492 ug°c = (5.12 L/m) n = 3.611 ●●● 25 Question 9 of 14 | g 1 3 4 6 7 9 +/- 0 Tap here or pull up for additional resources 8 What mass in grams of NaCl would need to be added to 2051 g of water to increase the boiling temperature of the solution by 1.500 °C? (Kb for water is 0.5100 °C/m) X C 20% 0 Submit x 1006. _(6a)_ 2CUSO4. + 4NaOH » CH:COOH ±_(6b)__ + 2NA2SO4 + HzO
- i. ( Br. Br jo NaOH 200°C 1. (Sia) ₂BH 2. H₂O₂/NaOH Br₂ NaNH, 150°C Lindlar's/H₂ 31) Listen -5 The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Cag(PO4)2] solution. You may ignore the additional volume coming from the Ca3(PO4)2 solution to make the calculation simpler. Calculate the new sulfate (SO42) ion concentration at equilibrium with this common ion effect. 6.40 x 10-5 5.25 x 10-5 6.21 x 10-5 5.44 x 10-5 201591..docx LAB EXP. #3 -..docx Show AllActivity 2: Identify the intermolecular forces present among the following species. a. Sulfur dioxide (SO2) and another SO2 b. Sodium ion (Na*) and Formaldehyde (CH20) Na* and C. H H c. Carbon dioxide (CO2)with another CO2 0=c=0. d. Ammonia (NH3and H2O) H-N-H and H H H e. Fe2+ and O2 Fe2+ and
- Activity 2: Identify the intermolecular forces present among the following species. a. Two Sulfur dioxide (SO2) molecules b. Sodium ion (Na) and formaldehyde (CH2O) Na* and H H. c. Two Carbon dioxide (CO2) molecules 0=c=0 d. Ammonia (NHand H20) H-N-H and H H e. Fe?* and O2 Fe2+ and :SComplete combustion of 16 liters of gasoline consisting of a mixture of heptane gas (C7H16) and isooctane (C8H18) gas produces 124 liters of clean carbon dioxide gas in the air. a. what percentage each composition gas in gasoline? b. What volume of water vapor is released? c. If air contains 20% by volume of oxygen, what volume of air is required for this combustion? please give me the stage of the processThe literature value for the Ksp of Ca(OH)2 AT 25 degrees celsius is 4.68x10-6. How does the value you determined in the lab compare with this result? Explain what may have caused your result to differ from this value. (Clearly explain what may have happened. Should you have obtained the literature value, clearly explain how this could have happened.) Value determined in the lab: 3.65x10-6. 2. How would your results have changed if there had been a trace of acid impurity present in the Erlenmeye flasks you used?