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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: ChargePositive on March 08, 2019, 02:00:26 AM

Title: Determining Equilibrium Constant Lab Question
Post by: ChargePositive on March 08, 2019, 02:00:26 AM
Hello all,

So I've just done a lab where we prepare 5 different solutions of Fe3+, SCN-, and NO3. The concentration of SCN- was varied. At the end I calculated what the equilibrium constants are and am working on the post lab content. It asks me an " By what percentage did the initial concentration of SCN⁻ increase from smallest to highest?"

Now I don't know if I'm just being dense, but I have no idea what this means. I've attached my data tables as I'm pretty sure it has something to do with that.

I would be greatly appreciative if anyone could clear this up for me, thanks!

(https://lh3.googleusercontent.com/fIDhYRd4gineX9R3xG6zggEDL18-QwiatQt6jd9NmX0ZaUCEGNZjN3F991aQMrgIAIgjO2S3ToU0yGugLJWy92jS7LNvB3pAZXm92GjCcOt2AgI6zYf3X9hOlAHFka1oFpG5oQz4-l5vQlwFayzsnonYrYNKMbREAQ_rwvuiXmqVyyAWtgIpMcUuDUnS1b6ARp_Gw5r_nNX4JgNoTRQTeAToFEY7O69XAMm2nBfgcQ4Wvz4D24RMwxD0EEIBGCnTFA3F3lWTgzVEHadaRIQNmKE-Pp6OUYloLrBGH8xos7N2vf8ABcgnvcoSe98pxOcLCEj-oKwEqQZmmw7ucaV0cHUbAjk0pW3ToNFt3By_EGRbwtzzPe6ZoLAVsEkDNL7aFxWWhxYJAaJDKsiNrXlowhos4qyG_swXudnOrUa3oi92GkoNwKL2DjF6Jdx8o1XgZbIDNqAJKlZ8r8_ifRMXh2r4kD9yp5hpPUQo5BebEY5b9c8UZSig9DBpSQqpRalow4m1eGkW4RH2CgZlzWPGVqpG_0DKBp7PlaZSVhcxuz5FuvhM8bWHi37AjtmnEBcgy1q0wFtj4wZ2sg4oUTkYDwwcz4SqOH7qFcxW-JtGeF1Y1uiwoVwP-E4wG_tPpolnJ_wtQbB9UZ-lyVpgdYLyqgRlKA=w2556-h912-no)

(https://lh3.googleusercontent.com/cU0_NTZKwrSCLaIny-5WeUM4fhY1O226CJtlYeJc5UvkFXr4CVmzfTOnPtClskGQytL1p4CLqB1bppM5d1T7IrWAz-lsUkzLC9clF-0bTqPcNyPhcZfNGNbbAh3DvjTpFE226bDH0tIFQMeJfJMFSZZlpRX1obXJzboc0JyKv_OBn9lv_p9rjjWm3BZAqceGkRjlBOoRkTMfMn14bQrjHlzKaMSV5zrQlzQC3g0BltiMu1QHucRYxPBqbzbeGCzikHv7LGUWZDuw4FtY1iWGj_M1qFEiV1q-YrthzeGhjuGf2tVeNbjMsNm2W6T_bNhQKgnirt8YPeJhyym4WExJIPi37k_fIWA4BIrK5GsaqeLoAwFC3FRM9gl5RPhBIfMM37L0Ap83UN2uO6r8ZE5O2QQeSr2b8j17NBD1gJub762yfSlffu27HqGCK4JerKkagHwi0or2MJhDMS2U8DipDFASelTmBlg8XFtD4qSIIrpTbNoyrxPANK91z309wZFNDtxSdbWsIWDs9JQsYKSrm4_qo93LUlWk-vXkPd_Sir2hiVjKbdj34xRqkzedHAQ_Ac_fJJPDSVW_E3FwyvrS_1h7yYzKCDKJaoWZCwNw5kWPnjPmy7TQKDDN0n7hoKV1SjBdX8A3snHjLSz_oZi2QiE_0Q=w3000-h1376-no)

(https://lh3.googleusercontent.com/PjD4518zPZ5dlS-KRq3zewoWscGKLr59pBuMMiHBf5h-XxDt8B2empv2C8qOS9kAUQUiZHUwn5knxA2Ac4sZEGU8wuEKdF4r8vGaQzek3sLI7IYQdmgYmpVAkKtJSvD9-EPCwt-ZIZVZ-jj1IkIDT_I6qrxTOTF6W8h5YpiIPbCYTzOAsqQf7nvV0VFAEw-R8EZSi8XrMxzmRdv4t_oKSElzMy4X0uKtVMispxKlAb2CQRjubRBv-jkRoIYLpIJjKn5SPHD2jFFeyFPAGvpLj2tCIjt7fG_oWxc4lvy76rkcrADVAZWLO_8rvDRqH__8padEpSqc49gsUmF-5IsPV55z_vGZwcK1bEujRzafFcZ80U-d_j7IK9FIBR2ExSPISDoPppWexo4fodDvI1vIW6Ygy4OOkIrQ4-osdstI0tIlBrbDcDViG1jsgflEVSP7hmURmeDPcdPjB4NBwbCUDh9GqcW6ukCDfgSojwB4ZQQM5lc-u31OTZT0K86ngRBY8redqPiWmVieU995IFpDIP6iLh7lWz0smaGU5Xz0j00_P5PEEfO2Tm6OXlbx4aOFTOFuW_bxc2hzQ6_xOJ7xUcpKpIv6Pe86QfNGjvly9jRLV-s8UYTo1gMOcTOZJaH3Bbz64mZHCX7RXGJuyeYgKYGObQ=w3000-h1376-no)
Title: Re: Determining Equilibrium Constant Lab Question
Post by: Borek on March 08, 2019, 10:52:18 AM
Images don't show.
Title: Re: Determining Equilibrium Constant Lab Question
Post by: ChargePositive on March 08, 2019, 02:56:19 PM
Thanks for letting me know, I'm not sure why that is but I re-posted this topic with the pictures (hopefully) and would appreciate it if you could give it a look!
Title: Re: Determining Equilibrium Constant Lab Question
Post by: Borek on March 08, 2019, 05:26:33 PM
You better attach images to your post (Additional options below the post edit field) instead of hotlinking to imgur.
Title: Re: Determining Equilibrium Constant Lab Question
Post by: ChargePositive on March 08, 2019, 07:35:16 PM
oof, the images are attached on my end, I put the imgur link as a backup. I understand why it may not have worked the first time as it was a google photos link, but on my repost I used the link imgur provided specifically for forums. Any ideas as to why this isn't working for me?