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I got the answer..211 mL.. user p1v1/t2 = p2v2/t2 close this thread.

Homework Statement A Sample of gas 250 mL at 37 C and 730 torr . What volume would gas occupy at standard conditions ? Homework Equations pv = nRT V2 = T2P1V1 ------- T1P2 The Attempt at a Solution Sample Gas V = 250 mL ( 0.250 L ) P = 730 torr ( .960...

how about this 2.20975 g | 1 mol ------------------ = 0.00904 mol BaCl2*2H20 | 244.20 g 0.00904 mol | 2 mol H20 ----------------------- = 0.01808 1 mol of Bacl2 * 2H20 0.01808 mol | 36 g ---------------- = 0.65088 g 1 mol 4.165 - 0.65088 g =...

No, How do I use them in formula ? is my setup wrong ?

Homework Statement A mixture is 45.0 % of NaCl (inert) and 55.0 % BaCl2 * 2H20 . If 4.165 g of this mixture is heated until all of the hydrate is decomposed, what mass of solid residue will be left ? Homework Equations 1 mole substance = grams of substance 1 mole of substance =...

Homework Statement A 10.00 mL volume of unknown liquid was added to stoppered erlemeyer flask, which weighed 48.217 g. If weigh of the unknown liquid plus the stoppered flask was 57.056 g. Calculate density of unknown to correct number of signifigent figure. Homework Equations D = m...

Homework Statement A stoppered bottle, weights 38.215 g when empty , weights 45.362 g when filled with water. When filled with unknown liquid the bottole and unknown weighs 44.221 g. Calculate the liquid's specific gravity : Homework Equations D = m / v s.g.. = density of...