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RoseWind [281]
2 years ago
11

Find the density of an object that has a mass of 28 grams and a volume of 2 points 38.6 cm^3. *

Chemistry
1 answer:
Shtirlitz [24]2 years ago
4 0

Answer:

<h2>0.73 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{28}{38.6}  \\  =0.72538...

We have the final answer as

<h3>0.73 g/cm³</h3>

Hope this helps you

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What volume of 0.140 HCl is needed to neutralize 2.58 of Mg(OH)2<br> ? ...?
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8 0
2 years ago
1. If a car is traveling 90 mi/hr, how many feet will the car travel in 1 sec? In 5 sec?
Fudgin [204]

Answer:

The car travel 660 feet

Explanation:

First convert the Speed into <u>Feet/sec</u>

Speed of the car = 90 mi/hr

1 mi = 5280 ft

In 90 miles = 90 x 5280 = 475,200  feet

1 hr = 60 min

1 min = 60 sec

So ,

1 hr = 60 x 60 sec = 3600 sec

The speed is defined as the distance traveled by the object in unit time. The formula of speed is :

Speed =\frac{distance}{time}

Speed =\frac{90mi}{1hr}... given

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Speed =\frac{distance}{time}

distance =speed\times time

distance = 132ft/sec\times 5sec

Distance = 660 feet

3 0
3 years ago
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