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Can you explain the following to help me understand. I have 50 questions like this this is just a couple to kinda help me understand thank you
1. Calculate the amount of heat released when 18.0g of liquid water at 24.5 °C cools to ice at -10.0 °C.
2. Calculate the amount of heat released when converting 78.0g of steam at 100.0 °C to ice at 0.0 °C.
3. Calculate the amount of heat released when 87.5g of water at 32.0 °C cools to ice at 0.0 °C.
4. Calculate the amount of heat released when 94.0g of steam at 103.5 °C cools to ice at 0.0°C.
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Some homeowners, upset at the sight of weeds in their yards,argue "Its my house and I have the right to put herbicides on my lawn if I want to". How would you respond to this argument if you were the officer having to enforce the by law
you have 259 mL of a 1.25 M potassium chloride solution, but you need to make a 0.50 M potassium chloride solution. how many milliliters of water must you add to the original 1.25 M solution to make the 0.50 M potassium chloride solution
A tanker truck carrying 6.05×103 of concentrated sulfuric acid solution tips over and spills its load. The sulfuric acid solution is 95.0 by mass and has a density of 1.84 Sodium carbonate (NaCO3) is used to neutralize the sulfuric acid spill.
A cup of 125 mL of reasonably strong Twinings English BreakfastTM tea has approximately 110 mg of caffeine.
Hydrogen sulfide burns in oxygen to form sulfur dioxide and water. If sulfur dioxide is being formed at a rate of 0.43 mol L-1 s-1, what are the rates of disappearance of hydrogen sulfide and oxygen?
Assume that all C60 molecules can be desorbed into a solution (10 mL) while keeping the C540 molecules intact and in place, estimate the concentration of C60 molecules desorbed into a solution (in # molecules per mL).
Which factor do you think made the biggest influence on the reactions? Why? Out of the five different reactions, which reaction was the slowest? Was this what you expected? Why?
determine how much energy will be required to heat 69.7 gal of h2o from 22 degree celsius to 110 degree celsius if it
The mass of silica needed to produce one- 325mg of aspirin tablet. the formulae is C4H6O3 + C7H6O3 --> C9H8O4 + C2H4O2
The decomposition of HI(g) is represented by the equation 2HI(g) H2(g) + I2(g) Kc= 64 at 25°C. If the equilibrium concentrations of H2 and I2 at 400°C are found to be [H2] = 9.3x10-4 M and [I2] = 1.6x10-3 M, what is the equilibrium concentration o..
Explain a sample of water (H2O) contain 8.75 mol of H atoms. Explain how many moles of O atoms does it contain
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