A teacher wanted to order scales which can show mass and weight at the same time. The vendor brought one and asked me to confirm. Considering the volume and the fact that I have never used one in the past, I asked him to return the stuff and said “we don't need it”, saving space and money. A teacher asked for Malonic acid to do an "Iodine clock" experiment, but we didn't have Malonic acid. I've found another method with vitamin C. A teacher wanted to do a practical, but she said a beaker won't work, because it has a spout. She asked for something with a flat top. We got some glasses but they are not enough. I tried the practical with a beaker and it worked because fires require at least 16 percent of oxygen content to burn. A teacher asked for Inoculating Loops to do flame tests. I suggested her to use wooden splints, therefore we don't need to buy Inoculating Loops. Another teacher said the silver nitrate solution that we have was not concentrated enough (only 0.1 mol/l), I evaporated and it worked. A student asked for 5.0 M copper(II) sulfate, that means dissolving 125 g of CuSO4. 5H2O in 100cm3 of water. At room tem­per­a­ture (25 °С, 77 °F), the sol­u­bil­i­ty of cop­per(II) sul­fate pen­tahy­drate in wa­ter is only 35 g/100 g of wa­ter. I talked with the teacher, she suggested the student to reduce the concentration.