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Lapatulllka [165]
3 years ago
8

Galileo called the dark, flat parts of the moon______

Chemistry
1 answer:
exis [7]3 years ago
8 0

Answer:

Marias

Explanation:

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A solution has a volume of 500 ml and contains 0.570 mol of nacl what is the molarity
vichka [17]

Answer: 1.14 M

Explanation:

500 mL is equal to 0.5 L.

So, the molarity is (0.570)/(0.5) = 1.14 M

7 0
2 years ago
Cylinder of air at 1.5 atm of pressure is kept at room temperature while a piston compresses the air from 40 l down to 10 ml. wh
djyliett [7]

The new pressure, P₂ is 6000 atm.

<h3>Calculation:</h3>

Given,

P₁ = 1.5 atm

V₁ = 40 L = 40,000 mL

V₂ = 10 mL

To calculate,

P₂ =?

Boyle's law is applied here.

According to Boyle's law, at constant temperature, a gas's volume changes inversely with applied pressure.

                                        PV = constant

Therefore,

P₁V₁ = P₂V₂

Put the above values in the equation,

1.5 × 40,000 = P₂ × 10

P₂  = 1.5 × 4000

P₂  = 6000 atm

Therefore, the new pressure, P₂ is 6000 atm.

Learn more about Boyle's law here:

brainly.com/question/23715689

#SPJ4

8 0
2 years ago
Temperatures in the earth's interior are above the normal melting point of rock. True False
Assoli18 [71]
The correct answer is.

True
6 0
4 years ago
Read 2 more answers
The molecular weight of table salt, NaCl, is 58.5 g/mol. A tablespoon of salt weighs 6.37 grams. Calculate the number of moles o
cestrela7 [59]

Answer:

The number of moles of salt in one tablespoon is = <u>0.11 mole</u>

<u>Grams </u>cancel each other.

Explanation:

<u>Moles</u> : It is the unit of quantity . It is the mass of the substance present in exactly 12g of C-12.

moles=\frac{given\ mass}{Molar\ mass}

<u>Moles Calculation:</u>

Given mass = 6.37  gram

Molar mass = 58.5 g/mol

moles=\frac{6.37}{58.5}

= 0.1088

= 0.11 mole

<u>Units calculation</u>

moles=\frac{given\ mass}{Molar\ mass}

moles=\frac{g}{g/mole}

moles=\frac{g}{g}\times mole

<u>g ang g cancels each other </u>

moles = moles

<u>Hence unit = gram (g ) cancel each other.</u>

3 0
3 years ago
Read 2 more answers
Combustion reaction all follow a similar pattern, complete the work equation below
ruslelena [56]
<span>Hydrocarbon + Oxygen    →    Carbon dioxide + Water</span>
6 0
3 years ago
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