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Zinaida [17]
3 years ago
11

Which peptide is synthesized by the following nucleotide sequence of mRNA: ccacagucugcaguuuag

Chemistry
1 answer:
Nadya [2.5K]3 years ago
8 0
Need help too anyone know
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If a frog initially contained 2 grams of carbon-14 and the half-life of carbon-14 is 5,730 years, how much carbon-14 remains in
andreyandreev [35.5K]
Half life is the time taken for a radioactive isotope to decay by half its original mass. In this case the half life of carbon-14 is 5.730 years. 
Using the formula;
New mass = original mass × (1/2)^n; where n is the number of half lives (in this case n=1 ) 
New mass = 2 g × (1/2)^1     
                  = 1 g
Therefore; the mass of carbon-14 that remains will be 1 g 
5 0
3 years ago
Measurements show that unknown compound has the following composition: element mass 62.1 % carbon, 10.5 % hydrogen and 27.6 % ox
tino4ka555 [31]

Answer:

C3H6O

Explanation:

The percentage composition of the elements in the compound are given as follows:

62.1 % carbon = 62.1g of C

10.5 % hydrogen = 10.5g of H

27.6 % oxygen = 27.6g of O

Next, we convert each mass to mole by dividing by their molar/atomic mass

C = 62.1/12 = 5.175mol

H = 10.5/1 = 10.5mol

O = 27.6/16 = 1.725mol

Next, we divide each mole value by the smallest mole value (1.725)

C = 5.175mol ÷ 1.725 = 3

H = 10.5mol ÷ 1.725 = 6.086

O = 1.725mol ÷ 1.725 = 1

The empirical ratio approximately of C:H:O is 3:6:1, hence, the empirical formula is C3H6O

5 0
3 years ago
The ph of an aqueous solution at 25.0°c is 10.66. what is the molarity of h+ in this solution? the ph of an aqueous solution at
love history [14]

Answer: The molarity of H^+ in this solution is 2.2\times 10^{-11}M

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

Given : pH = 10.66

Putting in the values:

10.66=-\log[H^+]

[H^+]=10^{-10.66}

[H^+]=2.2\times 10^{-11}

Thus the molarity of H^+ in this solution is 2.2\times 10^{-11}M

5 0
4 years ago
Fluorine has seven electrons in its outermost shell. It will most likely try to join with an atom with _____.
Nana76 [90]

Answer:

Its either with itself to become fluoride Fl2 or with an alkali metal (elements in group 1) to achieve a stable electronic configuration or octet structure

Explanation:

7 0
3 years ago
In which ocean zone would photosynthetic organisms be found?
const2013 [10]

Answer:

Photic Zone

Explanation:

The photic zone is the uppermost layer of the sea that recieves sunlight allowing phytoplankton to perform photosynthesis.

6 0
3 years ago
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