<u>Answer:</u> The correct option is C) 1.68 mol/L
<u>Explanation:</u>
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:
.....(1)
Given values:
Given mass of 
= 150 g
Molar mass of = 180 g/mol
Volume of the solution = 0.50 L
Putting values in equation 1, we get:
Hence, the correct option is C) 1.68 mol/L
Answer:
The solution to this question can be defined as follows:
Explanation:
Naphthalene falls off from candle something, strong fumes-sublimation produces. - On a rainy day in winter, the breath fogging up on your cor's windshield.
- Brost formation on an overnight deposition on a frozen windshield.
- Making milk ice cream freezing the perfuming scent that fills the creation of the room.
Answer:
Z negative
Explanation:
The negative charge shows that this is an electron. Electrons are present outside the nucleus of the atom and having negative charge. Usually represented by e-
Answer:
8.48 × 10²² atoms of Nitrogen
Explanation:
Calcium Carbonate is an ionic compound made up to Calcium (Ca²⁺) and Nitrate (NO₃⁻) ions. Also, the subscript 2 after the closed bracket after NO₃ specifies that there are two moles of NO₃⁻ in calcium nitrate compound. Hence, in total we can say that this compound contain,
1 atom of Calcium
2 atoms of Nitrogen
6 atoms of Oxygen
Therefore,
When,
1 molecule of Ca(NO₃)₂ contains = 2 atoms of Nitrogen
Then,
4.24 × 10²² molecules of Ca(NO₃)₂ will contain = X atoms of Nitrogen
Solving for X,
X = 2 atoms × 4.24 × 10²² molecule / 1 molecule
X = 8.48 × 10²² atoms of Nitrogen
The sum of vectors is the value given when two or more vectors are added together, in what is known as a vector addition.
Hopefully, this helps.
