walkinginmypurpose

07.12.2020 • 

Mathematics

Which function models the sum? The function f(t) = -162 + 250 represents the
distance of a dropped object from the ground at any
time, t. The equation g(t) = 15t represents the height
of the object if it is tossed upward at a rate of 15 feet
per second. The sum of the functions can be used
to model the distance the dropped object is from the
ground if it is tossed upward at a rate of 15 feet per
second before it begins its descent.
Oh(t) = -16t2 + 265t
Oh(t) = -16t2 + 235t
Oh(t) = -16t2 – 15t + 250
Oh(t) = -16t2 + 15t + 250

Ответ:

hamzzaqasim44

10.04.2023

Mathematics

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= 49.674 g NaCl

Explanation:

From the equation;

1 mole of Sodium metal produces 2 moles sodium chloride

This means;

23 g of Na will produce 116.88 g of NaCl

Therefore;

11.5 g will generate;

 = (11.5 × 116.88)/23

 =  58.44 g of NaCl

But;

Percentage yield = (Actual yield/Theoretical yield)× 100%

         85 /100 = Actual yield /58.44 g

Thus;

Actual yield = 0.85 × 58.44

                  = 49.674 g NaCl

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