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1 year ago

What is the density of an object if its mass is 10 g and a volume of 2 mL?

Chemistry

1 answer:

Lilit [14]1 year ago

4 0

Hi there! Let's solve this problem shall we!

⠀Volume = 10g

Mass = 2 mL

In this specific problem, they are asking us to find the density of the object. So, using the information given to us (volume and mass), let's solve the problem!

Now, if you remember, D = M ÷ V

So, let's fill in the blanks!

D = Our unknown value

M = 2mL

V = 10g

Here is the filled out formula:

D = M ÷ V

D = 2mL ÷ 10g

D = 5 g/mL

*Make sure you put the units for your final solution!*

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Answer:

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Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength$

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Given, Frequency = 103.4 MHz = $103.4\times 10^{6}\ Hz$ ( as 1 MHz = 10⁶ Hz)

Thus, Wavelength is:

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$Wavelength=\frac{2.998\times 10^8}{103.4\times 10^{6}}\ m$

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3 years ago

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Explanation:

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2 years ago

Compared to pure water, an aqueous solution of calcium chloride has what?

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3 years ago

How much heat is absorbed by 15.5g of water when it's temperature is increased from 20.0C the specific heat of the water is 4.18

Anuta_ua [19.1K]

Hello!

The exercise doesn't say the final temperature, but we are going to assume that the increase is of 20 °C (The procedure is the same, just change the final temperature) To calculate the heat absorbed by water, we need to use the equation for Heat Transfer, in the following way (assuming that the heat increase is 20°C):

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So, the Heat absorbed by water is 1297,04 J

Have a nice day!

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3 years ago

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