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3 years ago

6

For every 1.0 mole of glycine in the sample, how many molecules of methionine are present? (for help performing calculations wit

h numbers expressed in scientific notation, try this exercise.)

1 answer:

krok68 [10]3 years ago

3 0

1.08 X 10^21 molecules

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An empty container weighs 80.21 g. it is filled with 20.14 mL of an unknown liquid, and the total weight of the container and li

tatiyna

Answer:

1.242 g/mL

Explanation:

Step 1: Given data

Mass of the empty container (m₁): 80.21 g

Mass of the filled container (m₂): 105.22 g

Volume of the unknown liquid (V): 20.14 mL

Step 2: Calculate the mass of the liquid

The mass of the liquid is equal to the difference between the mass of the filled container and the mass of the empty container.

$m = m_2 - m_1 = 105.22g - 80.21 g = 25.01 g$

Step 3: Calculate the density of the unknown liquid

The density of the liquid is equal to its mass divided by its volume.

$\rho = \frac{m}{V} = \frac{25.01g}{20.14mL} = 1.242 g/mL$

4 0

2 years ago

If an atom has 15 protons, 13 neutrons, and 17 electrons, what is the atom's electrical charge?

GuDViN [60]

The charge of this atom would be -2

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2 years ago

10. Which would not be a good solution to counter overpopulation?

Vikki [24]

Answer:

A. Encourage an increase in pollution in these countries

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1 year ago

What do animals use to clone from a cell in one parent

user100 [1]

Cloning<span> occurs when identical twins, triplets, and so on are born or when a cutting from a plant is used to generate another plant. It also occurs in organisms that reproduce by asexual reproduction, such as bacteria and yeast.</span>

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2 years ago

What volume of 12.0 M sulfuric acid is needed to prepare 300.0 mL of 2.50 M solution?

Zepler [3.9K]

Answer:

n=c*V

=2.50*300x10^-3

=.75 moles of hcl

v=n/c

=.75/12

=.0625 L

convert to mL

=62.5mL

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3 years ago