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mars1129 [50]
3 years ago
12

HELPP! how many grams are in 1.50 x 10(24) atoms of copper?

Chemistry
1 answer:
svlad2 [7]3 years ago
4 0

Answer:

2266g

Explanation:

mass = no.of molecules /6.o23*1o(23) * molar mass

molar mass of co2= 44g /mol

1.5 .10^25/6.023 .10^23 =51.5 moles of co2

51.5 .44g/mol =2266 g

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If a gas occupies 733 mL at 10.0 °C, at what temperature will it occupy 950 mL, assuming the pressure of the gas remains constan
raketka [301]
This is an example of Charles’ Law problems, the basic equation is: V1/T1 = V2/T2. One vital thing to recall for all gas law problems is that the temperature must be in Kelvin (not Celsius). 
So our given is 10.0 C = 283 K. So 
V1/T1 = V2/T2 
733/283 = 950/T2 

T2 = 367 K 
5 0
3 years ago
Which has a higher ionization energy: chlorine (Cl) or magnesium (Mg)? Why? Select the best answer
algol [13]

Removal of the loosely bounded electron is defined by the ionization energy. Chlorine needs less energy to add electrons and has higher ionization power. Thus, option A is correct.

<h3>What is ionization energy?</h3>

The ability of an electron to accept or give electrons to another element in a chemical reaction by forming and creating bonds and the positive and negative charges has been defined by the ionization energy.

Magnesium has lower ionization energy than chlorine due to its large size and smaller nuclear charge. On the other hand, chlorine can easily add electrons to the valence shell which is almost full.

Therefore, option A. chlorine has higher ionization energy and can add electrons with minimum energy.

Learn more about ionization energy here:

brainly.com/question/6842791

#SPJ1

3 0
1 year ago
How does the addition of salt to solid ice affect the melting transition from solid to liquid?
serious [3.7K]

Answer:

Im sure the answer is c

Hope this helped have a good day :) please mark me the brainliest answer?

7 0
3 years ago
Read 2 more answers
How many moles are equal to 89.23g of calcium oxide, CaO?
Katen [24]

1.59moles

Explanation:

Mass  of CaO = 89.23g

Unknown

Number of moles = ?

Solution:

The mole is a unit of measurement in chemistry used to delineate the number of particles an atom contains.

A mole of a substance contains the avogadro's number of particles.

Number of moles = \frac{mass}{molar mass}

Molar mass of CaO = 40 + 16 = 56g/mol

  Number of moles = \frac{89.23}{56} = 1.59moles

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

8 0
3 years ago
The amount of gravitational force impacts the weight of objects.<br> true or false
ElenaW [278]

Answer:

True

Explanation:

It's how gravity works.

8 0
3 years ago
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