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Alecsey [184]
3 years ago
5

Please refer to photo, please hurry I’m being timed!!

Chemistry
2 answers:
Dimas [21]3 years ago
6 0

Answer:

the last three

Explanation:

its not the first on cause its about heating

Eva8 [605]3 years ago
5 0
The last three I’m a little late
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Myriah wants to use dimensional analysis to find out how many centimeters (cm) are in 1.4 meters (m).
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Answer:  There are 0.5 grams of barium sulfate are present in 250 of 2.0 M BaSO_{4} solution.

Explanation:

Given: Molarity of solution = 2.0 M

Volume of solution = 250 mL

Convert mL int L as follows.

1 mL = 0.001 L\\250 mL = 250 mL \times \frac{0.001 L}{1 mL}\\= 0.25 L

Molarity is the number of moles of solute present in liter of solution. Hence, molarity of the given BaSO_{4} solution is as follows.

Molarity = \frac{mass}{Volume (in L)}\\2.0 M = \frac{mass}{0.25 L}\\mass = 0.5 g

Thus, we can conclude that there are 0.5 grams of barium sulfate are present in 250 of 2.0 M BaSO_{4} solution.

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