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nadezda [96]
3 years ago
10

A 10.0mL sample of a sugar solution has a mass of 5.0g. What is the density of the sugar solution?

Chemistry
1 answer:
Ludmilka [50]3 years ago
3 0

Answer:

The answer to your question is: density = 0.5 g/ml

Explanation:

Data

Volume = 10 ml

mass = 5 g

Density = ?

Formula

density = mass / volume

Substitution

density = 5/ 10

density = 0.5 g/ml

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Since volume and temperature are constant, this means that pressure and_____are____proportional. the sample with the largest____
IceJOKER [234]

Since volume and temperature are constant, this means that pressure and <u>number of moles</u> are <u>directly </u>proportional. the sample with the largest <u>number of moles</u> will have the <u>high </u>pressure.

Since, the ideal gas equation is also called ideal gas law. So,  according to ideal gas equations,

PV = nRT

  • P is pressure of the sample
  • T is temperature
  • V is volume
  • n is the number of  moles
  • R is universal gas constant

At constant volume and temperature the equation become ,

P ∝ nR

since, R is also constant. So, conclusion of the final equation is

P  ∝ n

The number of moles and pressure of the sample is directly proportion. So, on increasing number of moles in the sample , pressure of the sample also increases.

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5 0
2 years ago
Suppose 550.mmol of electrons must be transported from one side of an electrochemical cell to another in 49.0 minutes. Calculate
nekit [7.7K]

Answer:

18.0 Ampere is the size of electric current that must flow.

Explanation:

Moles of electron , n = 550 mmol = 0.550 mol

1 mmol = 0.001 mol

Number of electrons = N

N=N_A\times n

Charge on N electrons : Q

Q = N\times 1.602\times 10^{-19} C

Duration of time charge allowed to pass = T = 49.0 min = 49.0 × 60 seconds

1 min = 60 seconds

Size of current : I

I=\frac{Q}{T}=\frac{N\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}

=\frac{n\times N_A\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}

I=\frac{0.550 mol\times 6.022\times 10^{23} mol^{-1}\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}=18.047 A\approx 18.0 A

18.0 Ampere is the size of electric current that must flow.

3 0
3 years ago
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NemiM [27]

Answer:

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Explaination:

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I know the paper is blurry but can anyone explain any of the questions from 76-80?
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Answer:try to make a good pic please I have ideas about the topic

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3 years ago
_____ is fluffy ice crystals, while _____ is water droplets that freeze on the way down to Earth.
Naily [24]

Answer:

snow,sleet is the answer

Explanation:

7 0
3 years ago
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