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3 years ago

How did Altair begin

Chemistry

1 answer:

Vanyuwa [196]3 years ago

3 0

Answer:

Altaïr is an ancestor (on the maternal side) of Desmond Miles, a modern-day assassin. He was trained in the Masyaf Castle in Syria by Al Mualim, his guardian since childhood.

Explanation:

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Sulfuric acid (H2SO4) has a molar mass of 98.1 g/mol. How many oxygen atoms are found in 75.0 g of H2SO4?

nekit [7.7K]

Answer:

18.33 ×10²³ atoms

Explanation:

Given data:

Molar mass of sulfuric acid = 98.1 g/mol

Mass of sulfuric acid = 75.0 g

Number of of oxygen atom present = ?

Solution:

Number of moles of sulfuric acid:

Number of moles = mass/molar mass

Number of moles = 75.0 g/ 98.1 g/mol

Number of moles =0.761 mol

one mole of sulfuric acid contain four mole of oxygen atom.

0.761 mol × 4 = 3.044 mol

1 mole = 6.022×10²³ atoms of oxygen

3.044 mol × 6.022×10²³ atoms of oxygen / 1mol

18.33 ×10²³ atoms

3 0

3 years ago

Why is a cis-1,3-disubstituted cyclohexane more stable thanits<br> trans isomer?

anzhelika [568]

Answer:

Explanation has been given below

Explanation:

In diaxial conformation of cis-1,3-disubstituted cyclohexane, 4 gauche-butane interactions along with syn-diaxial interaction are present. Hence it readily gets converted to diequitorial conformation where no such gauche-butane interaction is present
In two possible conformations of trans-1,3-disubstituted cyclohexane, 2 gauche-butane interactions are present in each of them.
Hence cis-1,3-disubstituted cyclohexane exists almost exclusively in diequitorial form. But trans-1,3-disubstituted cyclohexane has no such option.

Trans-1,3-disubstituted cyclohexane experiences gauche butane interaction in each of the two conformations.
Therefore cis-1,3-disubstituted cyclohexane is more stable than trans conformation

5 0

3 years ago

What is the molarity of a solution that contains 1.67 moles in 1,750 mL?

solmaris [256]

Answer:

0.954M solution

Explanation:

molarity = moles solute / volume solution in liters

=> molarity = 1.67 moles / 1.750 L soln = 0.954M solution

8 0

2 years ago

Which molecules do not attract each other? Your answer: Non-polar and non-polar molecules Polar and non-polar molecules Positve

ratelena [41]

Answer:polar and non-polar molecules, positive parts of polar molecules and positive parts of non polar molecules

Explanation:

4 0

3 years ago

2. Calculating density of an object with a regular shape

Tatiana [17]

D= 0.10125kg/m^3

EXPLAINATION
Density =mass/volume
D= 226.8/20 x 8 x 14
D=226.8/2240
D= 0.10125kg/m^3
Hope it was helpfull!!

6 0

2 years ago