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sweet-ann [11.9K]
4 years ago
15

Pamela wants to learn more about the career preferences of students in her school. She interviews a number of students from the

advanced science classes. Why is this sample likely to be biased? Advanced science students may not have clear career preferences. The numbers of boys and girls in the advanced science classes are not equal. Advanced science students are not representative of all the students in the school. It is too early for students to have career preferences while still in school. NextReset
Chemistry
1 answer:
Viktor [21]4 years ago
4 0
It is too early for students to have career preferences while still in school

(i believe) <span />
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5.0 g of NaCl is dissolved in water, and the solution is brought to a final volume of 150 mL. What is the molarity of this solut
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Answer:

Molarity is a sort of concentration for solutions. When you talk about it, means mols of solute, that are in 1000 ml of solution. The molarity at this is 0.57M

Explanation:

As you have the solution in a volume of 150ml with 5 g of solute, in 1000 ml how much solute, do u have? The answer is 33.333g so now, you have to take the molar mass of NaCl and get the mols. Mass/molar mass, you will get the moles, so 33,3333 g / 58,44 g/m is 0.570 moles. That's M

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4 years ago
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A3B9 represents a molecular formula. The representation of the empirical formula for this compound is AB3. This is so because the empirical formula is the simplest ratio of the atoms present in the molecule. You get AB3 when you divide the subscripts of A3B9, this is 3 and 9, by the greatest common factor, which is 3. 3/3 = 1 and 9/3 = 3, so the subscripts for the empirical formula are 1 and 3, which is what AB3 represents. <span>Answer: AB3.</span>
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1c 2a 3b

Explanation:

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Explanation:

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