The relation between moles and mass is given by the formula:
# of moles = (mass in grams) / (molar mass)
So, given the molar mass of 18.02 and 0.025 mol, you can solve the formula for the mass of water in grams:
mass of water in grams = # of moles of water * molar mass of water
mass of water in grams = 0.025 mol * 18.02 g / mol = 0.4505 g of water.
Then, she is wrong.
Hydrogen!!!!!!!!!!!!!!!!!!
Answer:
Explanation is given below.
Explanation:
The cold pack is applied on the injured part of body only the place where the type of injury is Sprain, swelling, or any other internal small injury. This is applied to lower the flow of blood in that particular area which reduces the further inflammation of that area.
For the applied pack the direction of the flow of the heat will be towards the cold pack which will absorb the heat of the injured part as the heat always flows from higher temperature to the lower temperature.
This method of treatment of an injury is the instant way of treating an injury which prevents further problem to the injury by reducing the blood flow to the site and cooling the affected area.
Well a question to ask would be if the mass of the material has changed significantly as that would determine that the substance is radioactive or if there have been any high readings found by a Geiger meter in certain period of time
hope that helps
Oxygen is diatomic and nitrogen is not