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Mkey [24]
3 years ago
6

A student measures a mass of an 8cm3 block of brown sugar to be 19.9G. what is the density of the brown sugar?

Chemistry
1 answer:
Naily [24]3 years ago
3 0

Answer:

<h2>2.49 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{19.9}{8}  \\  = 2.4875

We have the final answer as

<h3>2.49 g/cm³</h3>

Hope this helps you

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Explanation:

r62o72+H2o2-(r3+o2)

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3 years ago
How many moles are in 272 grams of hydrogen peroxide (H2O2) ?
Strike441 [17]

Answer:

8 moles

Explanation:

When we are asked to convert from grams of a substance into moles, we have to use the substance's molar mass.

Meaning that for this problem, we'll <em>use the molar mass of hydrogen peroxide</em> (H₂O₂), as follows:

  • 272 g ÷ 34 g/mol = 8 mol

There are 8 moles in 272 grams of hydrogen peroxide.

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2 years ago
What 2 things have to increase for metamorphisim to occur
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For metamorphism of rock to occur, temperature and pressure must increase. Rocks created in this manner are called metamorphic rocks.
8 0
3 years ago
Read 2 more answers
The pressure in car tires is often measured in pounds per square inch ( lb/in.2 ), with the recommended pressure being in the ra
Goshia [24]

when we convert 32.5 lb/in² to atmosphere, the result obtained is 2.21 atm

<h3>Conversion scale</h3>

14.6959 lb/in² = 1 atm

<h3>Data obtained from the question</h3>
  • Pressure (in lb/in²) = 32.5 lb/in²
  • Pressure (in ATM) =?

<h3>How to convert 32.5 lb/in² to atm</h3>

14.6959 lb/in² = 1 atm

Therefore

32.5 lb/in² = 32.5 / 14.6959

32.5 lb/in² = 2.21 atm

Thus, 32.5 lb/in² is equivalent to 2.21 atm

Learn more about conversion:

brainly.com/question/2139943

#SPJ1

4 0
1 year ago
Given the balanced equation, how many moles of sulfur trioxide are produced from 160 grams of oxygen ?
pickupchik [31]

I believe this topic is quantitative chemistry but I need the equation to work this out sorry

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3 years ago
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