2 years ago

I have a chemistry question so do your thing for many points

Chemistry

1 answer:

Nadya [2.5K]2 years ago

7 0

Hi.

Hope it helps you.

You might be interested in

Which best describes the geologic time scale? (choose the best answer from below)

Evgen [1.6K]

Answer: B) It presents the correct sequence of events in Earth’s history.

Explanation: edge 2021

5 0

3 years ago

A mixture of helium and hydrogen gases, at a total pressure of 751 mm Hg, contains 0.447 grams of helium and 0.193 grams of hydr

Margaret [11]

Answer:

D0wnload Phot0Math........................

Explanation:

4 0

3 years ago

How many moles of water are there in 1.000 l at stp? assume the density of water is 1000 kg/m3?

EastWind [94]

Assume 1 liter = 1 kilogram of water = 1000 grams of water.

Part A)
MW of hydrogen is 1.008g/mol, and oxygen is 16.00g/mol.

Find the MW of water by
2*(1.008) + (16.00) = 18.016g/mol.

Convert 1000g H2O to moles :

(1000g H2O)*(1mol H2O / 18.016g H2O) = 55.51 mol

Part B)
Using the answer from part A and Avogadro's number:

(55.51mol)*(6.022*10^23) =

3.343*10^25 molecules.
Hope this is helpful

7 0

4 years ago

Which is the formula mass of Na₂SO₄? *<br> 1. 119 amu<br> 2. 125 amu<br> 3. 142 amu<br> 4. 174 amu

ANTONII [103]

Answer:

the answer is option 3.

4 0

3 years ago

Read 2 more answers

Help me please!!!!!!!!!!!!

Lisa [10]

PLEASDR PLEASE PLEASE PLEASE PLEASE PLEASE HELP PLEASE PLEASE MAKE PLEASE PLEASE HELP ME PLEASE PLEASE HELP POG PLEASE PLEASE HELP US PLEASE HELP ME HELP ME PLEASE HELP ME THANKS FOR PLE ME PLEASE

3 0

2 years ago