Answer:
The pH of 0.001 M HNO3 is pH 2.0
Answer:
Explanation:
Start with the number of grams of each element, given in the problem.
Convert the mass of each element to moles using the molar mass from the periodic table.
Divide each mole value by the smallest number of moles calculated.
Round to the nearest whole number. This is the mole ratio of the elements and is
You can think like this, Velocity is speed with a direction. When you say, the car was moving at the speed of 20 kilometers per hour, that's speed. But if you say, the car was moving at the speed of 20 kilometer per hour to the east. That's velocity, because you also stated the direction of the car.
Density = 0.70 g/mL
Mass = 80.0 g
Volume = ?
V = m / D
V = 80.0 / 0.70
V = 114.28 mL
hope this helps!
Probably the one with Hydrogen in it... CuO+H2O