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3 years ago

Which term refers to the number of moles of solute per liter of solution?

Chemistry

1 answer:

scoray [572]3 years ago

6 0

Answer:

molarity

Explanation:

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How many sulfur atoms are there in 3.90 mol of sulfur?

Ilya [14]

<span>In a mole of anything, there are 6.023 x 10^23 units. So, in 3.9 moles of sulfur, there are 3.9 * 6.023 x 10^23 = 23 x 10^23 = 2.3 x 10^24 atoms (keeping only 2 sig figs). Hope I help!!
</span>

6 0

3 years ago

Which of the following shows 3x + 15 + 6x – 7 + y in simplest terms?

prisoha [69]

Answer:

9x+y+8

Explanation:

We know this because you add 3x and 6x to get 9x

then we only have one y so put y by itself then subtract 15 and y which gets us 8

3 0

3 years ago

A tanker truck carrying 6.05×103 kg of concentrated sulfuric acid solution tips over and spills its load. The sulfuric acid solu

irinina [24]

Answer:

6,216.684 kilograms of sodium carbonate must be added to neutralize $6.05\times 10^3 kg$ of sulfuric acid solution.

Explanation:

Mass of sulfuric acid solution = $6.05\times 10^3 kg=6.05\times 10^6 g$

$1 kg = 10^3 g$

Percentage mass of sulfuric acid = 95.0%

Mass of sulfuric acid = $\frac{95.0}{100}\times 6.05\times 10^6 g$

$=5,747,500 g$

Moles of sulfuric acid = $\frac{5,747,500 g}{98 g/mol}=58,647.96 mol$

$H_2SO_4+Na_2CO_3\rightarrow Na_2SO_4+CO_2+H_2O$

According to reaction , 1 mole of sulfuric acid is neutralized by 1 mole of sodium carbonate.

Then 58,647.96 moles of sulfuric acisd will be neutralized by :

$\frac{1}{1}\times 58,647.96 mol=58,647.96 mol$ of sodium carbonate

Mass of 58,647.96 moles of sodium carbonate :

$106 g/mol\times 58,647.96 mol=6,216,683.76 g$

6,216,683.76 g = 6,216,683.76 × 0.001 kg = 6,216.684 kg

6,216.684 kilograms of sodium carbonate must be added to neutralize $6.05\times 10^3 kg$ of sulfuric acid solution.

3 0

3 years ago

The percentage of carbon dioxide in the atmosphere has increased in the last century and is a concern for the environment as it

erma4kov [3.2K]

When fossil fuels are burned for energy, carbon that was sequestered underground is being released again into the atmosphere.

5 0

3 years ago

The _____ number of an atom is equal to the sum of the protons and _____ in the nucleus of the atom.

Nookie1986 [14]

Answer:

atomic, neutrons

Explanation:

the mass number of an atom is equal to the sum of the protons and neutrons in the nucleus of the atom.

7 0

2 years ago