how will you prepare 0.38M sodium acetate solution
38 percent of 50 = 19
-38 F = -38.89 C
38 degrees Celsius = 100.4 degrees Fahrenheit.
Also 38. Centigrade is another name for Celsius.
-38 degrees Celsius is -36.4 degrees Fahrenheit.
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38° Bé Sodium Hydroxide NaOH SG = 145 / ( 145 - Bé ) = 145 / ( 145 - 38 ) = 145 / 107 = 1.355 If you look at the data of Sodium Hydroxide you will see that a S.G of 1.355 represents a concentration of approx. 33 % Weight
The solution to the factorization - the factors are 1, 2, 19, 38
The solution for x is 18.
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A 38 out of 50 is a 76%. This is calculated by dividing 38 by 50 (38/50). You then multiply the result by 100, and the solution is your percentage out of 100.
x + 12 = 38. Subtract 12 from 38, getting 26. The 12 goes away because you subtracted it. x = 26, it cannot equal ten.
I'm not certain what is meant by 38 HCl, but I suspect it must mean 38% HCl. Typically, concentrated Hydrochloric Acid is about 36-38%. 38% W/W means each 100 grams of 38% HCl contains 38 grams of dissolved hydrogen chloride gas. Generally, concentrated HCl is considered to by 12 Formal (or less correctly, 12 Molar) which is equivalent to 12 Normal. A close approximation of 0.5M would be as follows, using a Volume/Volume prep: Combine 11.5 parts water and add 0.5 parts 12 Molar HCl. For example: 115 mL of water plus 5 mL of 12 M HCl.
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85 mL of (concentrated, 38%) HCl solution contains 36.5 gram HCl, which dissolved and diluted in up to 1.0 Liter gives you an 1.0 molar solution.
2x + 21 = 97 2x = 76 x = 38 Check it. 5 x 38 + 21- 3 x 38 190 + 21 - 114 211 - 114 = 97 It checks.
inactive ingredients:sorbitol,water,hydrated silica,PEG-32,sodium lauryl sulfate,SD alcohol 38-B,flavor,cellulose gum,sodium saccharin,red 33,red 40.