Get college assignment help at uniessay writers If more reactant is added, the equation will shift to the right in order to make more product (which will increase the products) b. If the temperature is decreased, the reaction will shift to the right to create more heat if it is exothermic (which will increase the product), and to the left if it is endothermic (which will decrease the products)
What is the absolute entropy of pure gold in the form of perfect crystals at 0 K? Answer in units of J · mol^−1 · K^−1.
Calculate the answer to six sig. figs. What is the value of Ksp for Ag2SO4 if 5.80 g is soluble in 1.00 L of water?
part 1: Calculate the answer to six sig. figs. Consider the solubility information BaSO4 = 3 ×10−4 g/100 g H2O at 20 ◦C. Cal- culate the solubility-product constant Ksp. part 2: Calculate the answer to five sig. figs. Consider the solubility information Ca(OH)2 = 0.143 g/100 g H2O at 20 ◦C. Cal- culate the solubility product constant Ksp.
Photosynthesis is a process by which energy provided by sunlight is used to create a complicated molecule (glucose) from simpler molecules (CO2 and H2O). The reaction is 6CO2 6H2O —> C6H12O6 6O2. The entropy of the system decreases during this process, yet it is an endothermic reaction. How is this possible in view of the second law of thermodynamics? 1. One of the above assertions is false; the entropy of the system does not decrease during the reaction. 2. Although glucose is a more complicated molecule than CO2 and H2O, there is enough entropy in the O2 products to make the reaction generate entropy overall. 3. One of the above assertions is false; photosynthesis is an exothermic reaction, the heat from which increases the entropy of the surroundings. 4. The energy provided by the sun is not completely converted into chemical potential energy; the excess energy is dumped into the surroundings, increasing its entropy enough to pay for the entropy decrease associated with the reaction. 5. The second law does not apply in this case.
What is /_Suniv for the condensation of a mole of water at 80◦C if S◦ of liquid water at 100◦C is 87 J/mol · K and if S◦ of water vapor at 100◦C is 197 J/mol · K? Assume that the calculated /_Hvap and /_Svap values are independent of temperature. 1. 6.2 J/mol · K 2. −110 J/mol · K 3. Water does not condense at 80◦C, so the reaction does not occur. 4. −116.2 J/mol · K 5. 0 J/mol · K 6. 116.2 J/mol · K 7. 110 J/mol · K 8. 226.2 J/mol · K
6) The heat capacity of a bomb calorimeter is 4.635 kJ °C−1. The calorimeter contains 250 g of water. When a 1.65 g sample of glucose, C6H12O6, is burned in the calorimeter, the temperature of the calorimeter increases from 24.56°C to 29.10°C. cH2O = 4.18 J g-1 °C-1. Calculate the ΔH for the following reaction:
When 33.0 mL of 0.600 M H2SO4 is added to 33.0 mL of 1.2 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction.
What is the Chemical name of AI2(Cr2O2)
How much energy is required to melt 35.4g of gold
Get college assignment help at uniessay writers What is the value of n when the empirical formula is C3H5 and the molecular mass is 205.4 g/mol?
This is my Chemistry homework. I am not sure if it has to do with me having a Macbook, but I tried to attach it the other day and I don’t think it worked.. Here we go again.
An air bubble was initially trapped in the buret but was dispensed during the back titration of the unreacted HCI. As a result of this technique error, will the reported amount of antacid in the sample be too high or too low? Explain
How many grams of oxygen are collected in a reaction where 255 of oxygen gas is collected over water at a temperature of 25 and a total pressure of 710 ?
what is the Hybridization of Si in SiBr4
Liquid acetone was placed in a 3.00L flask, then vaporized at 95’C and 1.02 atm. The vapor filling the flask weighed 5.87g. Calculate the molar mass of acetone.
No matter how long and hard Lerae studies, she always feels she hasn’t studied as much as she should have. A Freudian psychologist would suggest that Lerae shows signs of a ? A. Weak id B. Weak ego C.Strong id D.Strong super ego
A 391-rm mL sample of unknown rm HCl solution reacts completely with rm Na_2CO_3 to form 20.1 g rm CO_2. What was the concentration of the rm HCl solution?
Carbonyl stretching frequency of aliphatic carboxylic acids in dilute solution is located near 1770/cm. This frequency is much higher than the carbonyl frequency of these substances when measured neat (1720/cm). Also it is considerably higher than the corresponding aliphatic ester (1745/cm) value. Explain
A metal sample weighing 71.9 g and at a temperature of 100.0 oC was placed in 41.0 g of water in a calorimeter at 24.5 oC. At equilibrium, the temperature of the water and metal was found to be 35.0 oC. what was the change in temp for the metal?
If a cylinder contains 100kg of liquid oxygen. How many liters of oxygen can be produced at 1.00 atm of pressure at room temperature?
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