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antoniya [11.8K]
3 years ago
12

What is the Mass if the Density = 7g/mL Volume = 10mL?

Chemistry
1 answer:
liraira [26]3 years ago
6 0

Hello!

To calculate the density, use the formula: p = m/V.

To calculate the volume, use the formula: V = m/p

To calculate the mass, use the formula: m = pV

In this formula, p is the density, m is the mass and V is the volume.

Since we are trying to find the mass, we can substitute the density and volume and simplify.

m= 7 g/mL · 10mL

m = 70g

Therefore, the mass is 70 grams.

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sammy [17]
I would go with radioactivity is controlled radiation from a nucleus
5 0
3 years ago
A jogger runs a mile in 8.92 minutes. 1 mi=1609m; calculate her speed in km/hr
olchik [2.2K]

Answer:

Speed = 3.30 \frac{km}{hr}

Explanation:

Given

Distance = 1 mile

Time = 8.92 minutes

Required

Calculate Speed in km/hr

Speed is calculated as thus;

Speed = \frac{Distance}{Time}

Substitute 1 mile for distance and 8.92 minutes for time

Speed = \frac{1\ mile}{8.92\ minutes}

Convert Miles to Kilometres

If

1\ mile = 1609\ m;

Then

1\ mile = \frac{1609\ km}{1000}

1\ mile = 1.609\ km --- (1)

Convert minutes to hour

1\ minutes = 0.0167\ hour

Multiply both sides by 8.92

8.92 * 1\ minutes = 0.0167\ hour * 8.92

8.92 \ minutes = 0.148964\ hour ---- (2)

By substituting (1) and (2) in Speed = \frac{1\ mile}{8.92\ minutes}, we have

Speed = \frac{1.609\ km}{0.48694\ hour}

Speed = 3.304309 \frac{km}{hr}

Speed = 3.30 \frac{km}{hr} -- Approximated

6 0
4 years ago
Convert 22 grams of copper Il chloride (Cucl2) to moles. <br>with work please ​
Fittoniya [83]
Hope this helps!

https://youtu.be/MT5tKijKZwQ
5 0
3 years ago
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A helium balloon has a volume of 735 mL when it is at ground level. The balloon is
bagirrra123 [75]

Answer:

The answer to your question is P1 = 1.4 atm

Explanation:

Data

Volume 1 = V1 = 735 ml

Pressure 1 = P1 = ?

Volume 2 = V2 = 1286 ml

Pressure 2 = P2 = 0.8 atm

Process

To solve this problem use Boyle's law.

          P1V1 = P2V2

-Solve for P1

          P1 = P2V2 / V1

-Substitution

          P1 = (0.8 x 1286) / 735

-Simplification

          P1 = 1028.8 / 735

-Result

          P1 = 1.4 atm

6 0
3 years ago
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weeeeeb [17]
I would say D. Because if you displace too much water it would would either go to fast or not move at all... that's just my thought
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