What is the pH of a 1.0 x 102 M solution of HNO,?

Menthol (FW = 156.3 g/mol), the strong-smelling substance in many cough drops, is a compound of carbon, hydrogen, and oxygen. Wh

Alisiya [41]

Answer: the molecular formula is C10H20O

Explanation:Please see attachment for explanation

7 0

4 years ago

A cylindrical container of garlic powder has a height of 9 cm and 1.2 times the radius of another cylindrical container of the s

andreev551 [17]

To solve this you need to find the radius of the bigger cylinder so you have to solve the equation 36π= $r^{2}$ π(9). When you solve it you end up with a radius of 2 in which you multiply by 1.2 which gives you the radius of the new cylinder which is 2.4. With the new radius you simply find the volume of the bigger cylinder which is 51.94π $cm^{3}$ .

5 0

3 years ago

The label on a bottle shows the following information: C2H4O, molar mass 44.06 grams per mole. The formula must be:

Ivahew [28]

The formula can be empirical because the subscripts are reduced to the lowest fraction.

To check if this formula is also the molecular formula we can check by obtaining the molar mass of the compound it is equal to the given molar mass. Thus

12*2 + 4*1 + 16 = 44 g/mol

this is ~equal to the given molar mass thus the given equation can be both empirical and molecular.

5 0

3 years ago

Read 2 more answers

The solution to be tested in this experiment must be buffered to ph of 10. If the ph were considerably higher, such as 12, how w

Serhud [2]

For a solution to be tested in this experiment and must be buffered to pH of 10, the [OH-] change will be, The hydroxide concentration would be higher and the formation of insoluble hydroxide salts with Mg^2 and Ca^2 would cause the determined concentration of water hardness to be too low.

<h3>What would be the [OH-] change?</h3>

Generally, the equation for the Total hardness is mathematically given as

$T=\frac{A*D*1000}{B}$

Where

$D=\frac{molarity}{0.01}$

D=0.02/0.01=2

Therefore

$T=\frac{A*D*1000}{B}\\\\T=\frac{20.4*2*1000}{25}$

T=1632ppm

in conclusion, The hydroxide concentration would be higher .