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faltersainse [42]
3 years ago
14

How would you expect an instrument with a high amplitude to sound compared to an instrument with a low amplitude

Chemistry
1 answer:
Veronika [31]3 years ago
5 0
An instrument with high amplitude has loud sound. An instrument with low amplitude has soft sound.
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What is the molecular formula for C5H7 if its molar mass is 536 g/mol?
hodyreva [135]

Answer:

(C5H7)8

Explanation:

It's empirical formula is given as; C5H7

Molar mass of carbon(C) = 12 g/mol

Molar mass of hydrogen(H) = 1 g/mol

We are told that it's molar mass is 536 g/mol.

To find the molecular formula;

Molecular formula = n × empirical formula

Thus;

n = 536/((12 × 5) + (1 × 7))

n = 8

Thus;

Molecular formula = (C5H7)8

8 0
3 years ago
The molecular formula of morphine, a pain-killing narcotic, is c17h19no3. what is the molar mass? what is the mass of 6.02 x 102
kati45 [8]
<span>Molar mass is the mass of one mole of a substance, it can be a chemical element or a compound. It is a characteristic of each pure substance. We calculate it by adding up all of the masses of the atoms involved in the compound. We calculate as follows:
                   atomic mass         total mass
C     17        12.01 g/mol          204.17 g/mol
H     19          1.01 g/mol           19.19 g/mol
N      1         14.00 g/mol            14.00 g/mol
O      3         16.00 g/mol            48.00 g/mol
------------------------------------------------------------
Molar mass                           = 285.36 g/mol

</span><span>What is the mass of 6.02 x 10^24 molecules of morphine?

</span>6.02 x 10^24 molecules ( 1 mol / 6.02x10^23 molecules) ( 285.36 g/mol) = 2853.6 g morphine
5 0
3 years ago
How many atoms of N are in 0.82 g of NaNO3? ( molar conversion)
VMariaS [17]

The number of atoms N = 5.8 x 10²¹

<h3>Further explanation</h3>

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12  

1 mole = 6.02.10²³ particles  

mass of N in 0.82 g of NaNO₃ (MW NaNO₃: 85 g/mol) :

\tt mass~N=\dfrac{Ar~N}{MW~NaNO_3}\times mass~NaNO_3\\\\mass~N=\dfrac{14}{85}\times 0.82\\\\mass~N=0.135~g

moles of N :

\tt mol=\dfrac{mass}{Ar}\\\\mol=\dfrac{0.135}{14}=0.0096

The number of atoms N :

\tt N=n\times No\\\\N=0.0096\times 6.02\times 10^{23}\\\\N=5.8\times 10^{21}~atoms

4 0
2 years ago
Which statement below best describes a volatile liquid?
kifflom [539]
2 im pretty sure but im not for sure
4 0
2 years ago
Read 2 more answers
Which sample equation best illustrates the Law of Conservation of Mass?
lutik1710 [3]

Answer:

D . 20 grams reactant U + 3 grams reactant V → 23 grams product W

Explanation:

Law of conservation of mass states:

The mass of a closed system (As a reaction), is neither created or destroyed.

That is, the mass of reactants is equal to mass of products.

A. In reaction A 22g of reactants produce 9g of products. This reaction doesn't illustrates the law of conservation of mass.

B. 10g reactant produce 25g of products. This reaction doesn't illustrates the law of conservation of mass.

C. 19g of reactants produce 180g of products. This reaction doesn't illustrates the law of conservation of mass.

D. 23g of reactants produce 23g of products. -This is the reaction that best illustrates the Law of Conservation of Mass.

5 0
3 years ago
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