The unit M means that mole/L, So first change the unit of solution volume to L which is 0.25 L. So the mole of solute is 2.5*0.25=0.625 mol.
Climate change is consuming because there is lots of clear cutting and co2 that creates gases that are trapped into the atmosphere and there are lots of green house gases which produce more heat than the earth's atmosphere can take
Density is a ratio between the mass and the volume of a substance.It measures how much of a substance is packed into a set volume. Density increases when a larger amount of material is packed into a smaller volume. The same is true in opposite: density decreases when a smaller amount of a substance is packed into a larger volume.
To calculate density, we will take the total given mass of the substance and divide it by the total volume of its container.
In this problem, we have a mass of 86 grams and a volume of 25cm^3.
Density= mass/volume
Substitute the given values into the formula:
Density=86 grams/25 cm^3
Density=3.44 grams/cm^3
The density of the material is 3.44 g/cm^3.
Answer:
of heat energy will be released
Explanation:
Balanced reaction-
According to balanced equation, moles of produces 1 mol of to release 46.17 kJ of heat.
Molar mass of = 2.016 g/mol
Number of moles = (mass)/(molar mass)
So, 28 kg of = 28000 g of
= moles of
= moles of
So. moles of react to release heat or of heat