How many liters of propane (C3H8) are need to make 30.0 L of CO2 at STP? *

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Calculate the mass of 0.750 mol of the following substance. na3po4. , i'm not quite sure on how to set up the problem to solve! : (

A155.0 9 piece of copper at 182 °c is dropped into 2500 g of water at 23.9 °c. (the specific heat of copper is 0.385 1/9°c.) calculate the final temperature of the mixture. (assume no heat loss to the surroundings.)