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Answer:
55.9 g KCl.
Explanation:
Hello there!
In this case, according to the definition of molality for the 0.500-molar solution, we need to divide the moles of solute (potassium chloride) over the kilograms of solvent as shown below:
Thus, solving for the moles of solute, we obtain:
Since the density of water is 1 kg/L, we obtain the following moles:
Next, since the molar mass of KCl is 74.5513 g/mol, the mass would be:
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It is corn syrup and milk.
The full question is:
<span>Which of the following statements are true about measurements and units?
A. The SI Unit is used by scientists all over the world.
B. The unit of mass in the SI system is the kilogram.
C. Measurements do not need to include units.
D. The English system of measurements is based off of the powers of ten.</span>
The correct answer is A. The SI Unit is used by scientists all over the world. <span>The <span>International System of Units is the metric system which consists of units of measurement. There are 7 main units: ampere, Kelvin, second, meter, kilogram, candela, mole and 22 derived units.</span></span>
A Hydrogen atom only
contains a single electron (1 e). Therefore for this atom, the quantum number
which determines the energy of an electron is best represented only by the
principal quantum number. The principal quantum number has a symbol of n.
Answer:
<span>n</span>
