How many moles of water, h2o, contain 2.0×1022 molecules of water?

Asked by maham237 @ 17/12/2020 in Chemistry viewed by 441 People

How many moles of water, H2O, contain 2.0×1022 molecules of water? (See the hints for assistance in interpreting scientific notation.)
Express the quantity in moles to two significant figures.

Answered by maham237 @ 17/12/2020

Answer : The number of moles of water is, $3.3\times 10^{-2}$

Solution : Given,

Number of water molecules = $2.0\times 10^{22}$

As we know that 1 mole of water molecule contains $6.022\times 10^{23}$ number of water molecules.

As, $6.022\times 10^{23}$ number of water molecules present in 1 mole of water molecule

So, $2.0\times 10^{22}$ number of water molecules present in $\frac{2.0\times 10^{22}}{6.022\times 10^{23}}=3.3\times 10^{-2}$ mole of water molecule

Therefore, the number of moles of water is, $3.3\times 10^{-2}$

Similar Questions

How many atoms are in 1.5 moles of water h2o

Asked by admin @ 03/08/2021 in Chemistry viewed by 284 persons

The number of atoms of hydrogen present in 1.5 moles of water is

How many water molecules are in 5.2 moles of water

Asked by admin @ 02/08/2021 in Chemistry viewed by 312 persons

How many water molecules are in 5.2 moles of water?

How many molecules are there in 2 moles of water

Asked by maham237 @ 25/05/2021 in Chemistry viewed by 279 persons

How many molecules are in 2.50 moles of h2o

Asked by maham237 @ 28/04/2021 in Chemistry viewed by 309 persons

If 5.0 moles of c3h8 react, how many molecules of water are formed?

Asked by maham237 @ 25/12/2020 in Chemistry viewed by 324 persons

How many moles of nitroglycerin were in the container originally

Asked by admin @ 02/12/2021 in Chemistry viewed by 335 persons

When nitroglycerine (227.1 g/mol) explodes, N2, CO2, H2O, and O2 gases are released initially. Assume that the gases from the explosion cool to standard conditions without reacting further. 4 C3H5N3O9 …

Calculate the mass of 0.5 mole of water molecules

Asked by admin @ 20/08/2021 in Science viewed by 331 persons

Calculate the mass of. 0.5 mole of water molecules

One mole of co2 contains how many atoms of oxygen

Asked by admin @ 04/08/2021 in Chemistry viewed by 345 persons

1 mole of co2 contains how many atoms of carbon

How many molecules are there in 3.00 moles of nh3

Asked by admin @ 02/08/2021 in Chemistry viewed by 319 persons

How many molecules are there in 3.00 moles of NH3??

How many sucrose molecules are in 3.0 moles of sucrose

Asked by admin @ 02/08/2021 in Chemistry viewed by 342 persons

How many sucrose molecules are in 3.0 moles of sucrose

How many chlorine molecules are in 6.5 moles of chlorine

Asked by maham237 @ 21/05/2021 in Chemistry viewed by 319 persons

How many molecules of co2,h2o,c3h8, and o2 will be present if the reaction goes to completion?

Asked by maham237 @ 25/12/2020 in Chemistry viewed by 351 persons

0.1 mole of buckminsterfullerene contains how many kg of carbon

Asked by admin @ 04/08/2021 in Chemistry viewed by 323 persons

0.1 mole of fullerene contains how many kg of carbon

How many hydrogen bonds can a single water molecule have

Asked by admin @ 04/08/2021 in Chemistry viewed by 297 persons

22. A single water molecule can form how many hydrogen bonds at a time

How many hydrogen bonds can a single water molecule form

Asked by admin @ 02/08/2021 in Chemistry viewed by 323 persons

22. A single water molecule can form how many hydrogen bonds at a time

Most viewed questions in Chemistry

Discuss sn2 mechanism of methyl bromide using aqueous koh

Asked by admin @ 17/08/2021 in Chemistry viewed by 2182 persons

Comparing lactose percentage between whole milk and powdered milk

Asked by admin @ 23/08/2021 in Chemistry viewed by 1920 persons

Lewl letpa

Asked by maham237 @ 12/01/2021 in Chemistry viewed by 1557 persons

50 examples of unbalanced chemical equations with answers

Asked by admin @ 29/08/2021 in Chemistry viewed by 1386 persons

Chromium metal is immersed in an aqueous solution of cobalt(ii) chloride.

Asked by maham237 @ 23/12/2020 in Chemistry viewed by 1314 persons

Prepare a chart giving detailed information of carbon compounds

Asked by admin @ 23/08/2021 in Chemistry viewed by 1272 persons

Which 1 mole sample has the least entropy

Asked by maham237 @ 14/01/2021 in Chemistry viewed by 1259 persons

If you are given the assignment to cut raw poultry

Asked by maham237 @ 01/12/2020 in Chemistry viewed by 1245 persons

Effect of succinic acid on cst of phenol water system

Asked by admin @ 05/08/2021 in Chemistry viewed by 1243 persons

The reaction between aluminium powder and anhydrous barium nitrate

Asked by maham237 @ 09/01/2021 in Chemistry viewed by 1215 persons

Cnh4 lewis structure

Asked by maham237 @ 08/01/2021 in Chemistry viewed by 1139 persons

2 3 dihydroxypropanal

Asked by maham237 @ 05/01/2021 in Chemistry viewed by 1041 persons

Select true statements about the pentose phosphate pathway

Asked by maham237 @ 20/02/2021 in Chemistry viewed by 1029 persons

Crossword puzzle on carbon and its compounds class 10

Asked by admin @ 23/08/2021 in Chemistry viewed by 1003 persons

Ionic bond calculator

Asked by maham237 @ 23/02/2021 in Chemistry viewed by 980 persons