Jump to content

Emily Violet

Members
  • Content Count

    8
  • Joined

  • Last visited

Community Reputation

0 Neutral

About Emily Violet

  • Rank
    Lepton

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. HI my name is Sarah im in chemistry 11. im kinda stuck what formula to use and how to get the volume. A gas occupies a volume of 250 mL at 100.0°C and 649 mmHg. What is the volume of the same gas at STP conditions?
  2. HI my name is Sarah, im kinda stuck what formula to use and how to get the volume. A gas occupies a volume of 250 mL at 100.0°C and 649 mmHg. What is the volume of the same gas at STP conditions?
  3. Hi my name is Sarah i'm in grade 11. I'm doing this assignment where you have to predict in a double displacement reaction is possible but i don't know how to tell. is there a kind of formula? is it to do if a solid becomes aqueous or vice versa. i asked my teacher but she was no help. Told me i should know this by now. 😔 here are some of my example questions. a) Cu(NO3)2 and Zn(NO3)2 b) AlCl3 and AlBr3 c) Cr2(SO4)3 and FeCl3 d) Ba(NO3)2 and AgCH3COO
  4. Hi My name is Sarah and I need help. Titanium tetrachloride (a gas), carbon monoxide and carbon dioxide can be created from the reaction of titanium (IV) oxide with carbon and chlorine. Iw much (in grams) of each of the excess reagents remain after the reaction takes place? This is the formula: I Think 2TiCl4+Co+Co2=3TiO2+4Cl2+c
  5. Hi My name is Sarah I really need some help The potassium salt of benzoic acid, potassium benzoate, can be created by the reaction of potassium permanganate and toluene (C7H8(l)). By products of the reaction are manganese (IV) oxide, potassium hydroxide and water. If the yield of potassium benzoate cannot realistically be expected to be more than 68%, what is the minimum number of grams of toluene needed to achieve this yield while producing 10.0 g of potassium benzoate? Im just lost as of what to do I dont know if I got it but here is the formula. It just dosint look right to me KMn04+C7H8=Mno2+KOH+H2O
  6. Hi my name is Sarah iv been stuck on this question for two days, if you could help my it would be amazing 😃 Chromium (II) sulfate is a reagent that has been used in certain applications to help reduce carbon-carbon double bonds to carbon-carbon single bonds. The reagent can be produced by the reaction of zinc, potassium dichromate and sulfuric acid and the other products are zinc sulfate, potassium sulfate and water. a) What is the maximum number of grams of chromium (II) sulfate that can be produced by a reaction mixture containing 3.2 moles of zinc, 1.7 moles of potassium dichromate and 5.0 moles of sulfuric acid? this is the equation i got hopefully its right. 😐 I just don't know what to do after this part. 4Zn +K2Cr2O7+7H2SO4=4ZnSO4+2CrSO4+K2SO4+7H2O
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.