CHEMISTRY

what is the symbol for chromium (II) sulfate?

You mean the formula?
CrSO4

yes! thanx!!!!!! do u know how to find the number of molecules or atoms in a mole?

The number of atoms in a mole is called Avogadro's number, the value of which is approximately 6.02 × 10^23.

There are 6.02 x 10^23 atoms in a mole of atoms, 6.02 x 10^23 molecules in a mole of molecules, 6.02 x 10^23 eggs in a mole of eggs, and in fact 6.02 x 10^23 of anythings in a mole of anything. So 6.02 x 10^23 is a number, just as we have a "dozen" eggs(meaning 12 eggs), a "gross" of pencils (meaning 144 pencils), or a ream of paper (meaning 500 sheets). So a "mole" of atoms means 6.02 x 10^23 atoms or molecules, or whatever we are talking about.

  1. 👍 0
  2. 👎 0
  3. 👁 239

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chem

    Sort the following chromium compounds by whether the cation is chromium(II) or chromium(III). Cr2S3, Cr3P2, Crl3, CrO, CrBr2, CrN. How would I solve this? Soo stuck. Thanks! -MC

    asked by mysterychicken on February 26, 2014
  2. chemistry

    When aqueous solutions of sodium sulfate and lead (II) nitrate are mixed lead sulfate precipitates out of soultion. Calculate the mass of lead (II) sulfate that should form when 1.25 L of 0.0500 M Pb(NO3)2 and 2.00 L of 0.0250 M

    asked by Bella on February 21, 2012
  3. chemistry

    5.34g of salt of formula M2SO4 (M is a metal)were dissolved in water. The sulfate ion was precipitated by adding excess barium chloride solution when 4.66g of barium sulfate (BaSO4) were obtained. a)How many moles of sulfate ion

    asked by Ben on October 19, 2013
  4. chemistry

    Plastic articles can be chromium-plated by coating them with thin layer of graphite paste,placing them in a bath of aqueous chromium(III) sulphate and electroplating. a)Suggest a reason why the article is first coated with

    asked by harish on March 10, 2013
  5. Chemistry

    Aluminum sulfate reacts with calcium hydroxide (from lime) to form aluminum hydroxide and calcium sulfate. Write the balanced formula unit equation for the reaction.

    asked by Ana on September 28, 2014
  1. Chemistry

    The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 4.14 mm?

    asked by Rebecca on September 17, 2012
  2. chemistry

    what is the solubility of barium sulfate in a solution containing 0.050 M sodium selfate? The Ksp value for barium sulfate is 1.1E-10. An insoluble salt with formula MX3 has a solubility product constant written in terms of

    asked by Sarah (C) on April 23, 2011
  3. chemistry

    Write the oxidation and reduction half-reactions for a silver-chromium voltaic cell. Identify the anode, cathode, and the direction of electron flow. Ag+ + e-  Ag Cr  Cr2+ + 2e- or Cr  Cr3+ + 3e- ????? Which is the

    asked by S on June 16, 2016
  4. chemistry

    The formula for epsom salt is MgSO4 . 7H20 If 1.250 g of the compound is dissolved in water, calculate the number of milliliters of .200 M Ba(NO3)2 that would be required to precipitate all of the sulfate ions as barium sulfate. I

    asked by kelly on October 10, 2010
  5. Chemistry

    An analysis shows that 5.85g of chromium metal combines with oxygen to form 8.62g of chromium oxide. What is the empirical formula of the compound? Please help!!

    asked by Yasmina on September 25, 2019
  6. Chemistry

    Chromium (II) nitrate forms a hydrate that is 40.50% water by mass. What is its chemical formula? I just need to figure out how to do it!

    asked by Lola on April 1, 2010

You can view more similar questions or ask a new question.