How many moles is 5.70x10^23 molecules of NH3?

What mass of CO2 will sublimate given 500 kJ of energy at room temperature? (ΔHsub=26.1kJmole)

What test is used to compare soil samples using equal amounts of soil samples (a control and unknown) and placed in varying levels of liquids? A) titration test B) ultraviolet test C) density gradient tube test D) comparison microscope test

An iv solution contains 5.10g glucose in 100.5 ml water. what is the molarity of the solution? the molar mass of glucose is 180g/mol. molarity: mol solute/l solution

Theories are considered successful only if they ... A. Can be used to make accurate predictions. B. can be stated in simple terms. C. can be written in the form of an equation. D. have been accepted by all scientists.

How do genes and chromosomes relate

What is 450 g of flour a measure of? A) Weight B) Inertia C) Gravity D) Mass

List the four (4) ways you can tell that a chemical reaction has occurred.

A student has 2.99 g of Potassium Permaganate. How many mL of a. 532 M solution can the student make? How does one solve this?

Which statement is true according to the kinetic theory? 1. Moles of different gases with the same mas and temperature always have the same average density. 2.

A substance with a pH of 9 has A) no H30 + ions or OH - ions. B) more H30 + ions than OH - ions. C) more OH - ions than H30 + ions. D) the same number of H30 + ions as it does OH - ions.