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3 years ago

QUESTION 7 Can you use alligation for any type of liquid?

Chemistry

1 answer:

NeTakaya3 years ago

5 0

Answer:

Yes you can use alligation for a type of liquid. Explanation: Alligation is an old and practical method of solving arithmetic problems related to mixtures of ingredients.

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How many sulfur atoms are present in 25.6 g of Al2(S2O3)3

IgorC [24]

Given the mass of $Al_{2}(S_{2}O_{3})_{3}$ =25.6 g

The molar mass of $Al_{2}(S_{2}O_{3})_{3}$ =390.35g/mol

Converting mass of $Al_{2}(S_{2}O_{3})_{3}$ to moles:

$25.6 g Al_{2}(S_{2}O_{3})_{3}*\frac{1molAl_{2}(S_{2}O_{3}}{390.35 gAl_{2}(S_{2}O_{3}} =0.0656molAl_{2}(S_{2}O_{3}$

Converting mol $Al_{2}(S_{2}O_{3})_{3}$ to mol S:

$0.0656mol Al_{2}(S_{2}O_{3})_{3}*\frac{6molS}{1mol Al_{2}(S_{2}O_{3})_{3}}=0.3936 molS$

Converting mol S to atoms of S using Avogadro's number:

1 mol = $6.022*10^{23}atoms$

$0.3936mol S *\frac{6.022*10^{23}atoms S}{1 mol S}=2.37*10^{23} S atoms$

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3 years ago

Are the following solutions acidic, basic, ot neutral.

Slav-nsk [51]

Answer:

1) Basic

2) Basic

3) Acidic

Explanation:

pH of a solution is a measure of the H3O+ ions in the solution and hence reflects its acidity.

$pH = -log[H3O+]$

Solutions are classified as acidic, basic or neutral based on the pH range

-pH < 7, acidic

- pH = 7, neutral

- pH > 7, basic

1) [H3O+] = 2.5*10^-9M

$pH = -log[H3O+]=-log[2.5*10^{-9}]=8.60$

Since pH > 7, solution is basic

2)[OH-] = 1.6*10^-2M

$pOH = -log[OH-]=-log[1.6*10^{-2}]=1.80$

pH = 14 - pOH = 14 - 1.80 =12.2

Since pH > 7, solution is basic

3) [H3O+] = 7.9*10^-3M

$pH = -log[H3O+]=-log[7.9*10^{-3}]=2.10$

Since pH < 7, solution is acidic

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4 years ago

Please help me, or just tell me what laws they are (Boyle's law, Charles

Vlada [557]

Answer:

Boyle's law states that the volume of a fixed mass of agass at constant temperature is inversely proportional to its pressure

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2 years ago

Match the vocabulary word to it's diffinition Proton: Electron Cloud: Nucleus: Electron: Neutron:

lorasvet [3.4K]

Answer: (give brainliest)

proton- a stable particle with positive charge equal to the negative charge of an electron

electron cloud- the system of electrons surrounding the nucleus of an atom.

nucleus- A nucleolus is the largest structure within the nucleus of a eukaryotic cell.

electron- Electrons are the smallest of the particles that make up an atom, and they carry a negative charge.

neutron- a subatomic particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus.

Explanation:

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3 years ago

If the temperature of the helium balloon were increased from 30°C to 35°C and the volume of the balloon only expanded from 0.47L

Andrej [43]

Answer:

R u from ridge?

Explanation:

Mr Wilson trippin

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3 years ago

QUESTION 7 Can you use alligation for any type of liquid? ​

QUESTION 7 Can you use alligation for any type of liquid?