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3 years ago

Use the drop-down menus to identify each type of sedimentary rock.

Chemistry

2 answers:

prisoha [69]3 years ago

7 0

Answer:

organic, chemical, clastic

Explanation: right on edg 2020

ladessa [460]3 years ago

5 0

rocks form where the remains of plants and animals are deposited in layers.

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Where do most carbon monoxide emissions come from?

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The largest anthropogenic source of CO in the United States is vehicle emissions.

Explanation:

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3 years ago

How many grams of solid NaOH are required to prepare a 400ml of a 5N solution? show your work!

Nuetrik [128]

Answer: The mass of solid NaOH required is 80 g

Explanation:

Equivalent weight is calculated by dividing the molecular weight by n factor. The equation used is:

$\text{Equivalent weight}=\frac{\text{Molecular weight}}{n}$

where,

n = acidity for bases = 1 (For NaOH)

Molar mass of NaOH = 40 g/mol

Putting values in above equation, we get:

$\text{Equivalent weight}=\frac{40g/mol}{1eq/mol}=40g/eq$

Normality is defined as the umber of gram equivalents dissolved per liter of the solution.

Mathematically,

$\text{Normality of solution}=\frac{\text{Number of gram equivalents} \times 1000}{\text{Volume of solution (in mL)}}$

Or,

$\text{Normality of solution}=\frac{\text{Given mass}\times 1000}{\text{Equivalent mass}\times \text{Volume of solution (in mL)}}$ ......(1)

We are given:

Given mass of NaOH = ?

Equivalent mass of NaOH = 40 g/eq

Volume of solution = 400 mL

Normality of solution = 5 eq/L

Putting values in equation 1, we get:

$5eq/L=\frac{\text{Mass of NaOH}\times 1000}{40g/eq\times 400mL}\\\\\text{Mass of NaOH}=80g$

Hence, the mass of solid NaOH required is 80 g

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4 years ago

1. What is a metal replacement reaction?

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Answer:

a reaction in which one element is substituted for another element in a compound

Explanation:

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3 years ago

What happens when a gas is heated

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3 years ago

Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 527 g NaOH(s) per liter

Alona [7]

Answer: The molarity of solution is 13.175 M.

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

We are given:

Mass of solute (sodium hydroxide) = 527 g

Molar mass of sodium hydroxide = 40 g/mol

Volume of solution = 1 L

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{527g}{40g/mol\times 1L}\\\\\text{Molarity of solution}=13.175M$

Hence, the molarity of solution is 13.175 M.

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3 years ago