7) How many joules are required to heat 75 grams of water from -85 °C to 85°C?

Q: Suppose 1.50 g of sodium bicarbonate (NaHCO3) and 1.50 g citric acid (H3C6H5O7) reacted to produce…

A: According to the question we have, The mass of the sodium bicarbonate (NaHCO3) is given by = 1.50…

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Q: 11. Consider other resonance structures for the compound shown. On which atoms can the positive…

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Q: Jack measured the mass of an empty evaporating dish and watch glass, and weighed approximately 0.5 g…

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Q: 21. Calculate the heat change to convert 72.0 grams of water vapor from a temperature of 110.°C to…

A: We have to calculate the heat change to convert 72.0 g water from 110°C to -5.00 °C

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Q: The balanced combustion reaction for C, H, is 2C₂H₂ (1) + 150₂(g) →→→ 12 CO₂(g) + 6H₂O(l) + 6542 kJ…

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Q: Suppose a 500. mL flask is filled with 1.0 mol of Br₂, 1.8 mol of OCl2 and 0.40 mol of BrOC1. The…

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Q: In a calorimeter, the temperature of 60.0g of water increases from 23.3°C to 38.7°C when a 102.4°C…

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Q: What is the concentration of Fe²+ in a saturated solution of Fe(OH)₂ if its solubility is 1.59x10-5…

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Q: Br Br 0 NH₂ (2 equivalents) HH II C=C Br Br III CEC IV

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.21 kg sample…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Setup dimensional analysis to solve the problems. Cancel units to prove the setups are correct.…

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Q: 17. Draw a reaction coordinate diagram for a reaction that is exergonic (exothermic), has two…

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Q: April wants to demonstrate the chemical reaction: CuSO4 + Fe à FeSO4 + Cu. She has 1 teaspoon of…

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Q: Consider the combustion of propane gas:  C3H8(g)    +     5O2(g)           ------>           3CO2(g)…

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Q: why is benzoic acid insoluble in pure water but soluble in NaOH solution

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Q: 5-54 Using VSEPR theory, predict the molecular geometry of the following molecules. a. :0: :0::N:0:H…

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Q: Calculate the molar solubility of calcium phosphate Ca3(PO4)2 Ksp=2.0×10−29 when dissolved in a…

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Q: 2 Li(s) + Ag:Croa(s)→ Li:Croa(s) + 2 Ag(s) (a) Lithium metal is the reactant at one of the…

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Q: Sucrose has the molecular formula If a sucrose sample C12H22O11. contains 5.0 x 1022 atoms of…

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Q: Predict the major organic product for the following multistep sequence. Be sure your answer accounts…

A: The Gilman reagent contains two alkyl groups, copper and lithium. The Gilman reagent selectively…

Q: 3. How much energy must be added to 36.1g of ice at 0°C in order to raise its temperature to 25°C?…

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Q: Each sketch below shows three objects with an electric charge. In each case, decide whether there is…

A: By considering charge and distance we can figure out the direction of net force.

Q: Juilibrium 15) Consider the following reaction at equilibrium: 2CO2 (g) 2CO (g) + 02 (g) ΔΗ°= -514…

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Q: 4. Provide the reagents/product that will furnish the following products in major yield b. C. O Ph…

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Q: The boiling point of an aqueous solution is 101.18 °C. What is the freezing point? Consult the table…

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Q: The EMF of the cell transport  H2 | HCl(a±=0.009048) || HCl(a±0.01751)| H2 at 25°C is 0.02802V. The…

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Q: How many grams of solid calcium cyanide, Ca(CN)₂ must be added to 400.0 ml of 0.350M hydrocyanic…

A: Henderson-Hasselbalch equation is used for the pH of buffer solution. pH=pKa +logconjugate baseweak…

Q: 1. The solubility of limestone, CaCO3, at 25°C is 0.00067 g/100 mL. Write the chemical equation for…

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Q: Which of the following is the strongest base? ÖH OH 1 2 32 NH2 4 NH₂

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Q: 4. Draw a picture showing the direction of heat flow in an endothermic reaction versus an exothermic…

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Q: Give the product for the following reaction. CH3 CH₂- CH₂ CH₂ N CH₂CH=N CH3 CH₂- CH3- CH₂CH3 CH₂CH3…

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Q: 53 kr Molality=0.531 53 x 10³ Molarity Motality=of 138.205 /mel M

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Q: A chemist adds 0.90 L of a 0.38 mol/L copper(II) sulfate (CuSO) solution to a reaction flask.…

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Q: 5. What reagents are needed to convert toluene (C,H,CH,) to each compound? a. C.H₂COOH c.…

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Q: Predict the major product of the following reaction: or (a) os x O OH OH oe 0: RCO₂H ?

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Q: 56. For the reaction shown here, K. = 255 at 1000 K. CO(g) + Cl₂(g) = COC1₂(g) If a reaction mixture…

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Q: how to do: Calculate the amount of heat absorbed by 23.0 g of water when its temperature is raised…

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Q: Part II: Ksp - Solubility Product PbCl2(s) Pb2+ Volume of 0.30 M Pb(NO3)2 used Moles of Pb(NO3)2…

A: To calculate the moles of Pb(NO3)2 used, we use the formula: moles of Pb(NO3)2 used = concentration…

Q: 7 6. 8750 J of heat are applied to a 170 g sample of metal, causing a 56°C increase in its…

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Q: Complete the table below by writing the symbols for the cation and anion that make up each ionic…

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Q: In part 1 of this lab, you will be calculating A-H by conducting constant-pressure calorimetry…

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Q: 72. The tabulated data show the rate constant of a reaction measured at several different…

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Q: Calculate the value of the concentration solubility product of silver bromide in a 0.10 M NaNO3…

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Q: if something is inductively favorable, is it an Electron withdrawing group?

A: Electron withdrawing groups :- The groups or atoms which pulls electron density towards itself…