Answer:
1.9
Explanation:
Let us call to mind the formula
m/M= CV
Where
m= mass of the solute= 5.41 g
M= molar mass of the solute = 63.02g
C= concentration of the solution (the unknown)
V= volume of the solution = 7L
5.41 / 63.02g = 7C
0.0858= 7C
C= 0.0858/7
C= 0.01226 molL-1
[H^+]= [HNO3]= 0.01226 molL-1
pH= - log [H^+]
pH= -log(0.01226)
pH= 1.9
Answer:
C
Explanation:
Plants seek rewards for nutrients, sunlight, water, and territory necessary for survival
Answer:
But when we are talking about larger scales, like astronomical ones, gravity is dominant. The main reasons for this are that gravity has a longer range than the other forces (this shows that distance is important in both cases), and the second reason is that there is nothing in existence with negative mass.
Answer:
Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.
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A monobromination reaction of an alkane involves an alkane and bromine. The position of the hydrogen atom that will be substituted by the bromine free radical will depend on the order of the alkane. The bromine will attach to the carbon that has the most substituents.