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An experiment requires 46.0 of ethylene glycol, a liquid whose density is 1.114 . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
When you heat baking soda (NaHCO3), it breaks down into sodium carbonate powder (Na2CO3), carbon dioxide and water vapor. Write a correct thermo chemical equation and explain what it tells you about the reaction ( The enthalpy of this reaction is ..
When an outside plastic envelope is removed, O2 molecules penetrate the paper causing the reaction to begin. A Typical packet contains 250 grams of iron to warm your hands or feet for up to 4 hours.
Considering given equation as P4(s) + 5 O2(g) P4O10(s) where ΔH = -3013 kJ/mol you just need to compute the heat evolved when 436 grams of white Phosphorous (P4)burns in air according to the given equation as above.
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
If 7.85 x 10 to the 24th power Sc atoms react with excess CaO, how many grams of each product will form? You will need to determine the equation of the reaction.
Application of Boyle's Law - Determine the molecular formula of the compound
Calculate the mass in grams for a sample of Al that absorbs 1.70kJ when the temperature increases from 56 degree Celsius to 177 degree Celsius?
Determine how many pills does the female require to take each time she wants the dosage of 375miliigrams?
Compute delta Hf for CaC2 : CaC2 + 2H2O-->Ca(OH)2 +C2H2 From the given enthalpy of reaction data as water(H2O) =(2*-285.83),calcium hydroxide Ca(OH)2=(-986.2) , AcetyleneC2H2 =(226.77)?
What is the volume of Ammonia gas is dissolved in 40.0 mL of 15.0 M NH 3 solution at STP and Determine what is the vapor pressure of a solution made by dissolving 65.4grams ammonia in 259 grams of H 2 O at 55.0 ºC?
Determine the value of Faraday used If the electrolysis was carried out for eighty minutes with a current of four amperes flowing
A sample of water 53 g with a temperature of thirty six degree celsius is combined to 250 grams of H 2 O at 91 degree Celsius in an insulated container. Determine the final temperature after thermal equilibrium is reached?
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