Calculate the number or calories of heat energy required
Calculate the number or calories of heat energy required for warming 34.6g of water from 18.9 celsius to 29.9 celsius
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Hydrazine, N2H4, is used as a rocket fuel. It reacts with oxygen to to form nitrogen and water. How many grams of hydrazine would be needed to react with 100 grams of oxygen?
When 284.5 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed?
A tank contains a mixture of 3.0 mol of nitrogen 2.0 mol of oxygen and 1 mol of carbon dioxide at 25 degrees and a total pressure of 10 atm calculate the partial pressure in torr of each gas?
one way of purifying gaseous h2 is to pass it under high pressure through the holes of a metals crystal structure palladium which adopts a cubic
Diethyl ether is a volatile organic compound. the vapor pressur of diethyl ether is 401 mmhg at 18 degrees C and th hat of vaporization = 26.o kJ/mol. calcuate the vapor pressure of diethyl ether at 0 degrees c.
How many moles of HCl need to be added to 15.0 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl. Can you show the work too please?
What is the molar concentration of a H3PO3 solution if 150.00 mL of the solution was required to neutralize 75.00 mL of NaOH whose concentration was 1.50 molar?
How many moles of are in the tube of toothpaste? How many fluoride atoms are in the tube of toothpaste? How many grams of sodium ion are in 2.10 toothpaste? How many molecules of triclosan are in the tube of toothpaste?
The final volume of the solution is 1.25 L. What are the [H3O+] and [OH-] in the final solution? What is the pH of the final solution?
A 10.0L container of helium gas with a presure of 250mmHg at 0 degrees Celsius is heated to give a pressure of 1500mmHg. What is the temperature in degrees Celsius?
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