UN/NA number 1203, guide number 128
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titi,pepe,bilat.burat,at wasak na bilat by lazona gabriel
Mol% or weight%? Weight percent seems more likely; let's assume that and see what we come up with. We'll assume 100g of the substance to make the numbers pretty; in that case we have: * 34.9 g Na / 23.0 g/mol Na = 1.52 mol Na * 16.4 g B / 10.8 g/mol B = 1.52 mol B (so far the weight percent is looking like a good assumption) * 48.6 g O / 16.0 g/mol O = 3.04 mol O (looking like a greatassumption) Converting that to small whole number ratios, we get an Na:B:O ratio of 1:1:2, so the empirical formula is NaBO2.
how thick are you pouring? i will assume 900 sq. was just width by length. need to multiply by thickness inches to give cubic feet needed. divide that number by 27. this should be yards of concrete needed. my guess little over 4.4 cubes. don't forget to factor humidity. na
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Well, let's take a look at this happy little math problem. A factor is a number that can be multiplied to get another number. In this case, 6 divided by 42 leaves a remainder, so 42 is not a factor of 6. Just remember, there are no mistakes in math, just happy little accidents!