2.
1 answer:
The element is P (Phosphorus) and the atomic number is just the number of protons so for A it would be 15.
For B to find the atomic mass you would just have to add the protons and neutrons so 15+16=31 and as we can see Phosphorus does have a mass of 31 so for B it would be 31
For C it would be 5
And for D it would be the atomic mass of Phosphorus which is 31 over the atomic number which is 15 so it would be P31/15
For B to find the atomic mass you would just have to add the protons and neutrons so 15+16=31 and as we can see Phosphorus does have a mass of 31 so for B it would be 31
For C it would be 5
And for D it would be the atomic mass of Phosphorus which is 31 over the atomic number which is 15 so it would be P31/15
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Answer : The volume given to the patient should be, 85.5 mL
Explanation :
As we are given that the suspension contains 10g/15mL.
Now we have to determine the volume should be given to the patient.
As, 10 grams of lactulose syrup needed 15 mL volume of solution
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Thus, the volume given to the patient should be, 85.5 mL
The empirical formula of the given compound is .
The correct option is B.
<h3>What is an empirical formula?</h3>
The empirical formula of a chemical compound is the simplest whole-number ratio of atoms contained in the substance.
Given,
1.0 g of S
1.5 g of O
To calculate the empirical formula, we will divide the masses of the elements by their atomic weight.
For sulfur
For oxygen
Now, divide the greater value of mole came by the smaller value
Thus, the empirical formula for the given compound is 1 for S and 3 for O
Learn more about empirical formula, here: