0
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the Atomic Mass. Multiply by one mole for units to cancel. H2O= 18.0 grams
500.0 grams H2O / (18.0 grams) = 27.8 moles H2O
What else can I help you with?
What is the moles of CaC2O4 x H2O or CaC2O4 precipitated?
21
If the concentration of one material in a solution is given what additional information will be needed to find the concentration of a second material in the solution?
You need the volume of the solution and the stoiciometric coefficients. You must first find the moles of the first substance, by multiplying the molarity (M) by the volume (L). Once you have moles, you can compare the two substances by looking at the coefficients in your chemical equation. For instance, if your chemical equation is: HCl + NaOH --> H2O + NaCl you have a 1:1 ratio. Therefore the moles of HCl = the moles of NaOH however if you have 2H2O --> 2H2 + O2 the ratio of H2O to O2 is 2:1; the moles of H2O = 2 x the moles of O2
How many hydrogen atoms are in a water molecule?
2. Because it is H2O. the 2 is after the h showing how many
How many molecules are in 3.5grams of H2O?
There are 23 atoms in 6.0 g of water. Using this formula (6 g H2O)(1 mol H2O / 18 g H2O) = 1/3 mol H2O (1/3 mol H2O)(2 mol H / 1 mol H2O)(6.022 x 10^23 atoms H / 1 mol H) = 4.0 x 10 therefore 23 atoms.
What are the elements present in water?
Water is composed of may molecules each of which is made up of two hydrogen (H) atoms and one oxygen (O) atom, giving the formula H2O.
How many moles of H2O are present in 75.0g H2O?
There are 4.17 moles of H2O present in 75.0g of H2O.
How many moles of H2O are present in 150.0G of H2O?
The answer is 8,33 moles.
How many moles of Helium are present in 5.66 moles of H2O?
H2O or water doesn't have any helium in it.
How many moles of H2O is 7.038 grams of H2O?
The answer is 0,44 moles.
How many gram are in 3.0 moles of H2O?
3.0 moles of H2O have 54 g.
How many hydrogen atoms are present in 3.65 grams of water?
3.65 grams of water is equal to .203 moles of H2O. This means there is also .203 moles of H2 present, or .408 grams.
How many moles of Hydrogen are im 2.5 moles of H2O?
2.5 moles H2O (2 moles H/1 mole H2O) = 5 moles of hydrogen
How many moles of H2 are needed to produce 8.25 mole of H2O?
2H2 + O2 --> 2H2OFor every 2 moles of H2, 2 moles of H2O will be produced (i.e., a 1:1 ratio). So to produce 8.25 moles of H2O you will also need 8.25 moles of H2
How many moles of ethane does it take to produce 293 moles of H2O?
The answer is 97,66 moles.
How many moles are in 8g of H2O?
To calculate the number of moles in 8g of H2O, we must first calculate the molar mass of H2O (18.015 g/mol). Then, we can use the formula moles = mass / molar mass to find that there are approximately 0.444 moles of H2O in 8g.
How many moles of O2 are needed to to produce 10.2 moles of H2O?
For the reaction 2 H2 + O2 -> 2 H2O, we see that 1 mole of O2 produces 2 moles of H2O. Therefore, to produce 10.2 moles of H2O, we would need 5.1 moles of O2.
How many moles in 60 grams of H2O?
1 mole is equal to 18 grams of H2O, so 60 grams is 3.33 moles.
