A 1.00-g sample of octane (C8H18) is burned in a bomb calorimeter that has a heat capacity of 5.80 kJ/°C. The temperature of the calorimeter rises from 25.00oC to 33.20oC. What is ΔU per mole for the combustion of octane?

Which would not be classified as a pure substance?

Molecular iodine, i2 (g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s-1. part a part complete what is the half-life for this reaction?

Phosphine, ph3 (g), combusts in oxygen gas to form water vapor and solid tetraphosphorus decaoxide. express your answer as a balanced chemical equation. identify all of the phases in your answer.

Of the following, when can a compound be treated like an element when balancing chemical equations? A. When there is no change to the atoms in the compound. B. When the compound is made of anions. C. When the compound is made of cations. D.

Table salt contains 39.33 g of sodium per 100 g of salt. The U. S. Food and Drug Administration (FDA) recommends that adults consume less than 2.40 g of sodium per day. A particular snack mix contains 1.24 g of salt per 100 g of the mix.

Which of these is the main goal of any titration? to observe the effect of indicators on acids to observe the effect of indicators on bases --> (((to determine the concentration of one of the reactants))) <--- to determine the effects of a base on

How can a sea cave become a sea arch?

Where do the elements in the human body tend to be located on the table

What kind of energy can be lost in a system?

Why the output force exerted by a rake must be less than the input force