4 years ago

39 Which Kelvin temperature is equal to 200.oC?(1) -73 K (2) 73 K (3) 200. K (4) 473 K

Chemistry

1 answer:

nikdorinn [45]4 years ago

5 0

0K = -273C
So 473K = 200C
The answer is 4

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3 years ago

What is the molarity of a solution that is made by mixing 35.5 g of Ba(OH)2 in 325 ml of solution?

choli [55]

Answer:

$M=0.638M$

Explanation:

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In this case, since the molarity of a solution is calculated by diving the moles of solute by the volume of solution in liters, we first compute the moles of barium hydroxide in 35.5 g as shown below:

$n=35.5g Ba(OH)_2*\frac{1molBa(OH)_2}{171.34gBa(OH)_2}\\\\n=0.207mol$