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How many grams of hydrogen are needed to produce 30.0 grams of water?
RoxieMay
The synthesis reaction is 2 H2 + O2 = 2 H2O. Every two moles of hydrogen reacts with one mole of oxygen to make two moles of water. Then 30.0 grams of water is 1.67 moles, and 1.67 moles of H2 has a mass of 3.37 grams. 25.0 grams of O2 is .781 moles, so 1.562 moles of H2 are needed, or 3.15 grams.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoThe chemical synthesis reaction to form water is 2 H2 + O2 = 2 H2O. This is equal to 1.67 moles. 1.67 moles of H2 are then needed, or 3.37 grams.
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How many grams of calcium are required to react with 7.75 grams of water to produce calcium hydroxide and hydrogen gas?
8.62
How many grams of water could be made from 5.0 mol H2 and 3.0 mol O2?
The formula for Oxygen gas is O2, and the formula for water is H2O. Each molecule of Oxygen gas can produce 2 molecules of water (with enough Hydrogen, of course). So, 2.5 moles of Oxygen gas would be required to produce 5.0 moles of water.
Does hydrogen combustion produce carbon?
No, burning hydrogen produces only water, it does not produce carbon or carbon dioxide.
How do you produce hydrogen in lab?
when metal reacts with an acid, or when electricity is used to separate water into hydrogen and water.
How much hydrogen would be required to produce 3.5 mole of water?
2H2 + O2 ---> 2H2O 3.5 mole of hydrogen will produce 3.5 mole of water.
How many grams of hydrogen must be added to 800 grams of oxygen to produce 900 grams of water?
i think that you have to add 100 gramd to produce the amount of 900 grams
How many grams of calcium are required to react with 7.75 grams of water to produce calcium hydroxide and hydrogen gas?
8.62
How many grams of water are needed to produce one hundred fifty grams of magnesium hydroxide?
A lot
How many grams of water could be made from 5.0 mol H2 and 3.0 mol O2?
The formula for Oxygen gas is O2, and the formula for water is H2O. Each molecule of Oxygen gas can produce 2 molecules of water (with enough Hydrogen, of course). So, 2.5 moles of Oxygen gas would be required to produce 5.0 moles of water.
How many grams of hydrogen are needed to produce g of water according to 2h2 plus o22h2o?
This value is 0,2 g hydrogen.
How many grams of hydrogen peroxide H2O2 must be added to 1500 ml of water to produce a concentration of 1.33 m molal solution Recall that the density of water is 1.0 gram?
How many grams of hydrogen peroxide (H2O2) must be added to 1,500 mL of water to produce a concentration of 1.33 m (molal solution)? (Recall that the density of water is 1.0 gram/mL
What is amount of hydrogen in one liter of petrol?
Petrol contains about 84% carbon and 16% hydrogen by weight so a litre weighing 700 grams contains 588 grams of carbon and 112 grams of hydrogen. In the engine it would burn with 2464 grams of oxygen to produce 2156 grams of CO2 and 1008 grams of water (steam), which is normally invisible but can be seen in the exhaust gases from a cold engine.
What can you get from water?
Electrolysis of water produce hydrogen.
What chemicals produce hydrogen gas?
Water. When you put electrodes into water and pass a current, you produce hydrogen and oxygen gasses.
What are characteristics of hydrogen?
Hydrogen is water...which can also produce electricity by the water wheel....Basically hydrogen is water..Theres nothing difficult about WATER/HYDROGEN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
How many grams of hydrogen can be found in 45 grams of water?
2
How much water would form if 4.8 grams of hydrogen reacts with 38.4 grams of oxygen?
43.2 grams of water
