How many particles are in 697.008 grams of Potassium Sulfate?

pashok25 [27]

Answer:

Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. ... The fire's heat causes molecules in the pan to vibrate faster, making it hotter. These vibrating molecules collide with their neighboring molecules, making them also vibrate faster.

Explanation:

8 0

2 years ago

Gamma rays are often used to kill microorganisms in food, in an attempt to make the food safer. Some people contend that this ir

nikdorinn [45]

Answer:

b . Irradiated food is shown to not be radioactive.

Explanation:

If it can be proven that irradiated food is not radioactive, then it will effective dispute the idea that irradiated food are less safe to eat.

An irradiated food is one in which ionizing radiations have been employed to improve food quality.
Thus, bacteria and other food spoilers can be exterminated from the food.
Most irradiated food do not contain radiation and are fit for consumption.

If it can be proven, that this is true, then it will challenge the idea that irradiated foods are not safe.

4 0

2 years ago

How many moles of nitrogen are in 3.7 moles of C8H11NO2?

Phoenix [80]

<h3>Answer:</h3>

3.7 Moles of Nitrogen

<h3>Explanation:</h3>

On observing the chemical formula C₈H₁₁NO₂ (might be formula of Dopamine) it is found that one mole of this compound contains;

8 Moles of Carbon

11 Moles of hydrogen

1 Mole of Nitrogen and

2 Moles of Oxygen respectively.

<u>Calculate Number of Moles of Nitrogen:</u>

As,

1 Mole of C₈H₁₁NO₂ contains = 1 Mole of Nitrogen

So,

3.7 Moles of C₈H₁₁NO₂ will contain = X Moles of Nitrogen

Solving for X,

X = (3.7 Moles × 1 Mole) ÷ 1 Mole

X = 3.7 Moles of Nitrogen

4 0

3 years ago

What is the molar mass of calcium chloride dihydrate (CaCl2 • 2H2O)? Be sure to

Verdich [7]

Calcium chloride dehydrate (CaCl₂ · 2 H₂O) have a molar mass equal to 147 g/mol.

Explanation:

To calculate the molar mass of calcium chloride dehydrate (CaCl₂ · 2 H₂O) we use the following formula:

molar mass of CaCl₂ · 2 H₂O = atomic weight of Ca × 1 + atomic weight of Cl × 2 + atomic weight of H × 4 + atomic weight of O × 2

molar mass of CaCl₂ · 2 H₂O = 40 × 1 + 35.5 × 2 + 1 × 4 + 16 × 2

molar mass of CaCl₂ · 2 H₂O = 147 g/mol

Learn more about:

molar mass

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4 0

2 years ago

The u.S. Mint produced pure silver quarter commemorative coins in 1992, each coin weighing 5.67 g. How many silver atoms are pre

PolarNik [594]

Mass of each silver coin = 5.67 g

Molar mass of silver = 107.87 g/mol

Calculating the moles of silver from given mass and molar mass of silver:

$5.67 g Ag*\frac{1molAg}{107.87g} =0.0526molAg$

Calculating the atoms of silver in 0.05260 mol using the conversion factor, $1mol=6.022*10^{23}atoms$ :

$0.05260 mol*\frac{6.022*10^{23}atoms }{1mol} =3.17*10^{22}atoms$

Therefore, $3.17*10^{22}$ atoms of silver are present in each coin.

4 0

3 years ago