3 years ago

How many atoms are in 13.0 g Sr

Chemistry

1 answer:

Mkey [24]3 years ago

6 0

Answer: 7.505

atoms. (rounded to third place of decimal)

Explanation:

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A student finds that 4700 J of heat are required to raise the temperature of 250.0 g of metal X from 22°C to 63°C. Based on the

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Explanation:

the answer and explanation is in the picture

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When oxygen reacts with hydrogen, it has the capacity to release 29 kilojoules of energy. Inside a fuel cell, oxygen reacts with

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Calculate the amount of heat required for the evaporation of 105.0 g of water at 100.0 c

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To determine the amount of heat needed to evaporate a certain amount of water at its boiling point, we use the equation,

H = m(Hv)

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4 years ago

Ionic bonds form between which two types of elements?

Alla [95]

Answer:

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3 years ago

Read 2 more answers

If the volume of oxygen gas is 259 cm3 at 112 kPa, what would the volume be at 101.3 kPa?

NARA [144]

Answer:

<h3>The answer is 286.36 cm³</h3>

Explanation:

In order to find the volume be at 101.3 kPa we use Boyle's law which is

$P_1V_1 = P_2V_2$

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the final volume

$V_2 = \frac{P_1V_1}{P_2} \\$

From the question

P1 = 112 kPa = 112000 Pa

V1 = 259 cm³

P2 = 101.3 kPa = 101300 Pa

We have

$V_2 = \frac{112000 \times 259}{101300} = \frac{29008000}{101300} \\ = 286.3573543...$

We have the final answer as

Hope this helps you

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3 years ago