Top of page . questions involving mass, volume and concentration . example question 6b (q1) a potassium sulfate solution a has a concentration of 6.5g/dm 3 (a) what mass of potassium sulfate is present in 25cm 3 of solution a? (b) what volume of solution a, in cm 3, contains 3.0g of potassium sulphate? (c) what mass of the salt is required to make 250 cm 3 of a solution b so it contains 3.75 g. Answers.com is the place to go to get the answers you need and to ask the questions you want. Ignition powder the ignition powder that i currently use is a modified black powder mixture, and consists of 80% potassium nitrate and 20% charcoal, by weight.sulphur is not added to this mixture.the function of sulphur in conventional black powder is mainly to facilitate easy ignition..

Learn the vocabulary. concentration is a ratio comparing the amount of one substance to the amount of the entire mixture. for instance, if you plan to mix sugar and vinegar together for an experiment, you’ll need to calculate the concentration of sugar in the mixture.. This way, we obtain the amount of nacl in grams by multiplying x by the molar mass. then we convert the result to milligrams: 7.5·10-6 mol · 58 g/mol = 4.35·10-4 g = 0.435 mg (2) (sample exercise) a given protein solution has a concentration of 5 mg/ml, and the molecular mass of the protein is 25000 da.. Chances are that if you are into hydroponic gardening and you live in europe or in the us you have been buying your nutrient solutions from one of the many hydroponic nutrient sellers available locally..

Iodine is a necessary nutrient. resolving iodine deficiency can improve many health problems, including hypothyroidism, cysts, fatigue and weight gain.. Contents. introduction; reactions and heat; black powder; fulminate; high explosives; smokeless powder; aromatic explosives; pyrotechnics; fireworks; safety; references. our mission we are committed to diffuse knowledge to improve quality of life through creativity and integrity. our values being our customers’ trusted partner is our reward for innovation and our stimulus for personal fulfilment..

Contents. introduction; reactions and heat; black powder; fulminate; high explosives; smokeless powder; aromatic explosives; pyrotechnics; fireworks; safety; references. Answers.com is the place to go to get the answers you need and to ask the questions you want. Chances are that if you are into hydroponic gardening and you live in europe or in the us you have been buying your nutrient solutions from one of the many hydroponic nutrient sellers available locally..