06/08/22

The first-order rate constant of the reaction of CH3Cl with water to produce CH3OH and HCI is 3.32x 10^-10 s^-1 at 25 °C. Calculate the rate constant at 40 °C if the activation energy is 116 kJ/mol.
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06/08/22

Chemistry - limiting reagent

Given the following equation:Al2O3 + Fe → Fe3O4 + Al Balance the equation. If 25.4 g of Al2O3 is reacted with 10.2 g of Fe, determine the limiting reagent. Determine the number of moles of Al... more
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06/07/22

Vapor pressures of ethanol and 1 propanol at 35 C are 100 and 37.6. Calculate partial pressures of ethanol and 1-propanol at 35 C over ethanol in 1-propanol, where the mole fraction of ethanol is .3
its in ideal behavior
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06/06/22

When a sample of food is burned, it caused the temperature of the water in a calorimeter containing 1990. g of water to increase by 8.9oC. Calculate the amount of heat gained by the water.
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06/06/22

How do I find out which of the two molecules are the limiting reagent for synthesising azo dye? (Dimethylaninline or diazonium salt)
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06/06/22

What functional groups make a methyl orange water soluble?
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06/06/22

What is the cell potential for the following cell at 25°C?
Pt(s)|Sn2+(aq)(0.001M),Sn4+(aq)(0.005M)||Ag+(aq)(0.500M)|Ag(s)
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06/04/22

Chemistry HELP ASAP
In a solution at 25oC, 5.25 g of sodium hydroxide, NaOH(s), is added to enough water to create a solution of 2.10 L. What is the hydronium ion, H3O+(aq), concentration in this solution. Show all... more
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06/04/22

Draw all pissible lewis structure of ch3n3 &ocn-
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06/04/22

An orbital has n=4 &ml=-1 what are the possible value of l for this orbital
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06/04/22

ASAP PLEASE!!!!
In a solution at 25oC, 5.25 g of sodium hydroxide, NaOH(s), is added to enough water to create a solution of 2.10 L. What is the hydronium ion, H3O+(aq), concentration in this solution
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06/04/22

Help ASAP please
At a temperature of 525 K the Keq = 0.041 for the following reaction:PCl5(g) ⇄ PCl3(g) + Cl2(g)At one point in time, measurements were taken and the following concentrations were measured:[PCl5] =... more
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06/04/22

Help ASAP please

The Ksp is 6.6 x 10-6. What is the molar solubility of this solid in mol/L ? Show all steps of this calculation.
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06/04/22

Chemistry Quest.
What is the Dissociation equilibrium for lead (ll) bromide
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06/03/22

CHEMISTRY HELP PLEASEEEE ASAP
Consider the exothermic reaction 2S02(g) + O2(g) 2S03(g) Write → if the reaction will go forward, ← for reverse and ↔ for no change in the direction of the reaction.6. Adding oxygen7. Removing... more
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06/02/22

Can somebody please answer this question

The density of aluminium is 2.7 g/cm3. Find the mass in grams of a bar of aluminum measuring 4.0 cm by 2.2 cm by 14.0 cm. g
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06/02/22

Can somebody please answer this question

Given the following equation:4 NH3 (g) + 5 O2 (g) → 4 NO  (g) + 6 H2O (l)How many moles of H2O is produced if 0.33 mol of O2 reacts?  mol H2O
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06/02/22

solubility chemistry
A mass of 5 g of potassium chlorate is dissolved in 10 mL of water at 95°C. As the solution is cooled, at what temperature will a precipitate first appear?
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06/02/22

solubility chemistry

At what temperature would a solution be saturated if 65 g of potassium chloride is present in 150 mL of water?
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06/01/22

Calculate the boiling point and freezing point of the solutions
1. 0.575 molal aqueous solution 2. 10 g of C6H12O6dissolved in 259 g water.3. 0.5 mole Br2 dissolved in 507 g chloroform
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06/01/22

Highschool Chem
A certain flexible weather balloon contains helium gas at a volume of 855 L. Initially, the balloon is at sea level where the temperature is 25°C and the barometric pressure is .947atmThe balloon... more
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05/31/22

Concentration chemistry
Explain the steps you would follow to make 500 mL of a 0.3 M solution of sucrose (C ₁₂H₂₂O₁₁) in the lab.
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05/30/22

Coffee virtual lab
An eccentric Chemistry teacher orders a coffee to be made that is at exactly 78.6 Celsius.  He requires that you start with 189 mL of coffee heated to 91.3 celsius.  You must add Milk from the... more
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05/29/22

General Chemistry 2

The equilibrium constant, Kc, for the following reaction is 55.6 at 698 K.H2 (g) + I2 (g)  2 HI (g)Calculate the equilibrium concentrations of reactants and product when 0.366 moles... more
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05/29/22

General Chemistry 2
The equilibrium constant, Kc, for the following reaction is 1.20×10-2 at 500 K.PCl5(g) PCl3(g) + Cl2(g)Calculate the equilibrium concentrations of reactant and products when 0.388 moles... more
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