Chemistry

If you add 4.6 g of sodium to water, how many molecules of H2 will be formed? (4points)

2Na(s)+2H2O(l)-->2NaOH(aq)+H2(g)

  1. 👍 0
  2. 👎 0
  3. 👁 183
asked by Jew
  1. mols Na = grams/atomic mass.
    Uing the coefficients in the balanced equation, convert mols Na to mols H2.
    Convert mols H2 to molecules. 1 mol contains 6.02E23 molecules.

    1. 👍 0
    2. 👎 0
  2. thanks

    1. 👍 0
    2. 👎 0
    posted by no

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    How does table salt (NaCl) dissolve in water? A. The oxygen atoms in water molecules attract sodium ions. B. Each sodium ion is surrounded by chloride ions. C. Each NaCl molecule is surrounded by water molecules. D. Water

    asked by Cortney on March 18, 2015
  2. chemistry

    How does table salt (NaCl) dissolve in water? A. Water molecules hydrogen bond with sodium ions and chloride ions. B. Each sodium ion is surrounded by chloride ions. C. Each NaCl molecule is surrounded by water molecules. D. The

    asked by erika on September 14, 2016
  3. science,

    How many grams of CO are needed with an excess of Fe2O3 to produce 35.0 g Fe Solid sodium metal reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of of hydrogen are formed when 35

    asked by Help on January 8, 2018
  4. Chemistry

    HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN−, OH−, and water molecules 2. HCN molecules, H3O+, CN1−, and water molecules 3. H2CN+, OH−, and water

    asked by Anonymous on September 29, 2011
  5. chemistry

    HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN+, OH−, and water molecules 2. HCN molecules and water molecules 3. H2CN+, OH−, and water molecules 4. HCN

    asked by cheri on September 19, 2012
  6. Chemistry

    Solid sodium reacts violently with water, producing Heath hydrogen gas, and sodium hydroxide ( 2Na + 2H2O --> 2NaOH + 2H2 ). How many molecules of hydrogen gas are formed when 67.2 g of sodium are added to water?

    asked by Help! on December 11, 2011
  7. Chemistry

    solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. how many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water? 2Na + 2H2O ------> 2NaOH + H2

    asked by Bob on January 10, 2013
  8. Chemistry

    solid sodium reacts violently with water producing heat, hydrogen gas and sodium hydroxide. How many molecules of hydrogen gas are produced when 65.4g of sodium are added to water? 2Na(s)+ 2H2O(l) -->. 2NaOH(aq) + H2(g). Can

    asked by Kim on January 23, 2017
  9. Chemistry

    Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water?

    asked by Lucy on January 24, 2013
  10. Chemistry

    13. Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water? 2Na + 2H2O = 2NaOH + H2 So far I have this

    asked by Mitch n' Joey on December 12, 2017

More Similar Questions