General Chemistry Answers

How many moles of gas are in a 30 liter scuba canister if the temperature of the canister is 300 K and the pressure is 200 atmosphere?

If i have a 1.0 liter canister that holds 2 moles of gas, and the campfire temperature is 1400 C, what is the pressure inside the canister?

If i have a 50 liter container that holds 45 moles of gas at a temperature of 200 C, what is the pressure inside the container?

How many moles of gas does it take to occupy 120 liters at a pressure of 2.3 atmospheres and a temperature of 340k?

Propane is a hydrocarbon known as a fuel for cooking and home heating. Consider the following chemical equation: C3H8 + O2 ⟶ CO2 + H2O. Determine the mass of H2O produced in the combustion of 118 g of propane?

as a sample of gas is heated, the kinetic energy of its molecules do what

Find the limiting reagent if you have 23 moles of C, 18 miles of B and 13.2 moles of A if you have 3A+4B+5C=6ABC

Calculate the height of a column of liquid mercury in millimetres (mmHg) required to exert a pressure of 151.1 kPa. (record your answer to four digits) *

Your answer

What is the heat required to melt 77.4 g of solid diethyl ether, (C₂H₅)₂O, at its melting point? The ΔH° of fusion of diethyl ether is 7.66 kJ/mol. Use a molar mass with at least as many significant figures as the data given.

 Answer in kJ

The heat of fusion of ice is 335 J/g. Calculate the heat liberated when 118 g of water at 0°C is frozen.

A. -39.5 kJ

B. 39.5 kJ    

C. -2.84 kJ

D. 2.84 kJ

E. some other answer