Answer:
It's compound? It's chemical compound would be represented my letters or numbers
Answer:
0.5mol/L
Explanation:
First, let us calculate the number of mole NaOH = 23 + 16 + 1 = 40g/mol
Mass of NaOH from the question = 30g
Number of mole = Mass /Molar Mass
Number of mole = 30/40 = 0.75mol
Volume = 1.5L
Active mass = mole/Volume
Active mass = 0.75mol/1.5L
Active mass = 0.5mol/L
Answer:
Scientists found that seams formed mountain ranges that ran along the middle of some ocean floors. Scientists found that mid ocean ridges extend into all of earth's oceans and that a steep sided valley splits the tops of some mid ocean ridges.
Explanation:
A)
the molecular formula of menthol is C₁₀H₂₀O
molar mass of menthol is (12x10) + (1x20) + 16 = 156 g/mol
number of moles of menthol in 156 g - 1 mol
In 1 g of menthol number of moles - 1/156
Therefore in 5.0 g of menthol - 1/156 x 5 = 0.032 mol
therefore in 5.0 g of menthol there are 0.032 mol of menthol
b)
Molar mass of menthol - 156 g/mol
1 mol of menthol weighs 156 g
Therefore 1.56 mol of menthol weighs - 156 g/mol x 1.56 mol = 243.36 g
Answer : The final temperature will be, 292 K
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of ice = 
= specific heat of beer = 
= mass of ice = 50 g
= mass of beer = 450 g
= final temperature = ?
= initial temperature of ice = 
= initial temperature of beer = 
Now put all the given values in the above formula, we get:
Therefore, the final temperature will be, 292 K
