Solvent - Page 5
Questions
- Please help me with Freezing Point one last time? I am still having trouble and I only have one last try to get it correct? Where am I going wrong?
- Mcq When zinc poweder is added to acetic acid ? A.the mixture becomes warm B.a gas is evolved C.the colour of mixture becomes yellow D.a solid settles at the bottom
- How do dry cleaning solvents relate to solubility?
- When you heat a hydrated substance what is driven off through the process of evaporation?
- Does the fact that ethanol has a lower polarity than water limit what dissolves into it as a solvent?
- What is the freezing point of a 50% by volume ethanol solution? Assume water is the solvent. (Use data from Table 12.7 in textbook -for your reference, the text is ‘Chemistry a Molecular Approach’ by Tro et al).
- Which is the solvent and solute? A solution is prepared by mixing 5.000 g of water with 23.66 g of t-butanol (C8H10O) to give a final solution of 37.46 L.
- How many grams of S were used? What is the freezing point of S in degrees C?
- What is a universal solvent?
- Which is solute and solvent?
- What is the solvent of gold?
- Sugar is soluble in water ,although sugar is a non-polar substance?why?!
- When is extraction an appropriate technique for separation (e.g. is there an ideal sample size range, is there a minimum starting purity, what final purity should be expected, etc.)?
- Is sulphurous acid a volatile or non-volatile,give reason?
- What is the solvent in a liquid-liquid solution?
- What is the freezing point of a solution of 25.0g of iodine in 500g of benzene?
- Do all solutes dissolve in solvents?
- Benzene, a solvent, has a freezing point of 5.5°C and a F of 5.12° CM. If 45.6 g of CCl4 are dissolved in 520.0 g of benzene, what will the freezing point of the solution be?
- The equation for Electrospray ionisation (mass spectrometry) is: X (g) + H+ ---> XH+(g) yet the sample is dissolved in a volatile solvent, Why is it in Gaseous phase ???
- How to calculate the solubility of solute in cosolvents ( water and ethanol)? Please guide me. thank you so much.