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3 years ago

How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane

1 answer:

6 0

The carbon atoms that will be in the longest chain of 2, 2, 4 – trimethyl pentane is 5. There are 5 carbons in the longest chain that forms a cross.

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Water is considered a polar solvent due to attractive forces known as hydrogen bonds. a hydrogen bond is:_________

muminat

Because of the attraction forces known as hydrogen bonding, water is referred to as a polar solvent. An attraction between molecules known as a hydrogen bond occurs when partially positive hydrogen atoms are drawn to partially negative F, O, or N atoms.

<h3>What is a hydrogen bond?</h3>

A hydrogen bond (or H-bond) is a strong electrostatic attraction between an electronegative atom holding a lone pair of electrons, known as the hydrogen bond acceptor, and a hydrogen (H) atom that is covalently attached to a more electronegative "donor" atom or group.

<h3>How can hydrogen atoms join together?</h3>

When a hydrogen atom bonds with an electronegative atom, powerful intermolecular forces called hydrogen bonds are produced. The hydrogen bond acceptor's electronegativity will rise, resulting in a stronger hydrogen bond.

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4 0

2 years ago

Water is 11.2% by mass hydrogen. How many kilograms of water would contain 5.8 g of hydrogen?

Thepotemich [5.8K]

5.8 is 11.2% of what number

51.786 grams

3 0

4 years ago

5. A standardized mass was known to weigh exactly 5.0000g. It was weighed on a newly

sergey [27]

Answer:

Absolute error $= 0.001$

% Error $= 002$ 5

Explanation:

The absolute error is the the difference in the measured value and the actual value of a quantity.

Here the actual value is $5.0000$ grams

The measured value is $5.001$ grams

Absolute error

$5.001 - 5.000\\= 0.001$

Percent error

$= \frac{AE}{AV}$

Where AE stands for absolute error and AV stands for absolute value.

$= \frac{0.001}{5.000} * 100\\$

$= 0.02$ %

5 0

3 years ago

Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0

klemol [59]

Answer:

Partial pressure of methane: 1.18 atm

Partial pressure of ethane: 1.45 atm

Partial pressure of propane: 2.35 atm

Explanation:

Let the total moles of gases in a container be n.

Total pressure of the gases in a container =P = 5.0 atm

Temperature of the gases in a container =T = 23°C = 296.15 K

Volume of the container = V = 10.0 L

$PV=nRT$ (Ideal gas equation)

$n=\frac{PV}{RT}=\frac{5.0 atm\times 10.0 L}{0.0821 atm L/mol K\times 296.15 K}=2.0564 mol$

Moles of methane gas = $n_1=\frac{8.00 g}{16.04 g/mol}=0.4878 mol$

Moles of ethane gas = $n_2=\frac{18.00 g}{30.07 g/mol}=0.5986 mol$

Moles of propane gas = $n_3=?$

$n=n_1+n_2+n_3$

$n_3=n-n_1-n_2=2.0564 mol-0.4878 mol-0.5986 mol= 0.9700 mol$

Partial pressure of all the gases can be calculated by using Raoult's law:

$p_i=P\times \chi_i$

$p_i$ = partial pressure of 'i' component.

$\chi_1$ = mole fraction of 'i' component in mixture

P = total pressure of the mixture

Partial pressure of methane:

$p_1=P\times \chi_1=P\times \frac{n_1}{n_1+n+2+n_3}=P\times \frac{n_1}{n}$

$p_1=5.00 atm\times \frac{0.4878 mol}{2.0564 mol}=1.18 atm$

Partial pressure of ethane:

$p_2=P\times \chi_2=P\times \frac{n_2}{n_1+n+2+n_3}=P\times \frac{n_2}{n}$

$p_2=5.00 atm\times \frac{0.5986 mol}{2.0564 mol}=1.45 atm$

Partial pressure of propane:

$p_3=P\times \chi_3=P\times \frac{n_3}{n_1+n+2+n_3}=P\times \frac{n_3}{n}$

$p_3=5.00 atm\times \frac{0.9700 mol}{2.0564 mol}=2.35 atm$

5 0

3 years ago

An atom has at least one positive proton and at least one negative electron. Which of the following is true about the protons an

NikAS [45]

Answer:

proton and electrons orbit close together around a center nucleus

6 0

3 years ago

Read 2 more answers