A sample of carbon dioxide is contained in a 125.0 mL flask at 0.984 atm and 16.4 °C. How many molecules of gas are in the sample?

Can decomposition determine the property of a substance

Hydrogen peroxide spontaneously decomposes to yeild water and oxygen. Balance this reaction. __H2O2 (aq) → __H2O (l) + __O2 (g) A) 1, 1, 1 B) 1, 2, 1 C) 2, 2, 1 D) 2,2,2

If you know that a ∝ b and a ∝ c, then you can also say that a ∝ bc, or the product of b and c. Take the above three proportionalities (including V ∝ n) and combine them into a single proportionality in the form: V ∝? Show your work below.

a patients blood test shows that her hemoglobin concentration is 16. g/dL. how many milligrams are in every 2.00mL of the patients blood?

Calculate the specific heat for as air if 1500.0 joules are required to raise the temperature of 50.0g from 0.0c to 40.0c

A sample of bismuth weighing 0.687 g was converted to bismuth chloride by reacting it first with HNO3, and then with HCI, followed by careful evaporation to dryness. The mass of the bismuth chloride obtained was 1.032 g.

When 1 g of sodium chloride (NaCl) is placed in 100 g of water, a solution results. Once the solution is prepared, water is now considered what part of the solution?

1. How is pressure affected as depth increases? 2. As the sun heats the surface of the oceans, two layers of water result. What separates the layers? 3. How is temperature affected when? (a) the depth increases (b) the latitude increases 4.

Are nails in a jar with water a chemical change

What is the molarity of a solution composed of 4.73 g of potassium iodide (KI) dissolved in enough water to make 0.169 L of solution? Answer in units of M.