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enot [183]
3 years ago
9

Given the atomic weights of carbon, 12.01; hydrogen, 1.01; and oxygen, 16.0, what is the molar mass of glucose (C6H12O6)?

Chemistry
2 answers:
wel3 years ago
5 0
Multiply them, then add total.

C 6 * 12.01 =

H 12 * 1.01 =

O 6 * 16.0 =
                  + ------------
molar mass =

Add them together to get molar mass
nirvana33 [79]3 years ago
5 0

its D 180.18 .............................

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1. Compound A contains 14 g of nitrogen for each 16 g of oxygen. Compound B contains 14 g of nitrogen for each 32 g of oxygen. W
Sever21 [200]

Answer:

The lowest whole number mass ratio of nitrogen that combines with a given mass of oxygen is 1:1

Explanation:

In compound A, we have 14 g of nitrogen combine with  16 g of oxygen

In compound B, we have 14 g of nitrogen combine with  32 g of oxygen

Therefore,  we have

                                                                  A                            B

Ratio of molar masses                               14:16                 14:32

Mass of O that combine with 1 g of N       1.14                   2.29

Dividing by the smallest mass ratio          1                        2

Therefore the lowest whole number mass ratio at which oxygen and nitrogen can combine = 1:1.

4 0
3 years ago
Why is uric acid advantageous for nitrogenous waste excretion in insects? see section 40.4?
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<span>Answer: Uric acid is advantageous for nitrogenous waste excretion in insects because of low toxicity, excreted.</span>
7 0
4 years ago
How many grams are in 0.040 moles zirconium (Zr)? Only 2 significant numbers?
Evgen [1.6K]

Mass of Zirconium (Zr) in 0.040 moles : 3.6 g

<h3>Further explanation  </h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

\tt n(mol)=\dfrac{m(mass)}{MW(molecular~weight)}

moles of Zirconium : 0.04

mass of Zirconium (MW=91,224 g/mol) :

\tt mass=mol\times MW\\\\mass=0.04\times 91,224\\\\mass=3.6~g

4 0
3 years ago
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tamaranim1 [39]
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What fraction of the original uranium-235 should be left after 3.5 billion years?
ANEK [815]

1/3 fraction of the original uranium-235 should be left after 3.5 billion years

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On average, plutonium-239 makes up 93% or more of nuclear bombs, whereas plutonium-240 makes up less than 7% and other plutonium isotopes are present in extremely minute amounts. A nuclear bomb requires around 33 pounds (15 kilograms) of enriched uranium to function, according to the Union of Concerned Scientists.

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