So first lets find out how much gold there is. 10^4=10,000so that means 8.0x10,000= 8,000. now we have to find out how much money that is. All we have to do is multiply 8,000 by 350. When multiplied you get $2,800,000

7 0

2 years ago

If the ph of a 1m naoh solution is 11.3 what is the h+ concentration for that solution?

kotykmax [81]

[H+] = ?

pH = -log[H+]
[H+] = 10^-pH

[H+] = 10^-11,3
[H+] = 5,01 × 10^-12 mol/l

Answer: H+ concentration in this solution equal 5,01 × 10^-12 mol/l.

:-) ;-)

4 0

2 years ago

Describe in short about the paper chromatography.

Paul [167]

Answer:

Paper chromatography is a method used to distinguish or separate coloured substance mixtures.

In the image, take an example of colured chemical placed in a glass beaker. If a paper is placed in that chemical, coloured spots are separated and displayed on the chromatogram.

It was founded in 1944 A.D by a scientist called Erwin Cargaff.

8 0

2 years ago

What is the ionic bonding of NaCl

madam [21]

Na has a one proton over than electrons.so Na makes a Na+
Cl has a one electron overthan protons.so Cl makes a Cl-

proton has a + affectation
electron has a - affectation ..

8 0

2 years ago