Solved When 5.70 g of KBr (molar mass = 119.0 g/mol) is - Chegg
When 5.70 g of KBr (molar mass = 119.0 g/mol) is added to 50.0 g of water at 25.0°C in a constant pressure calorimeter, the temperature of the water decreases to 21.1°C. Assuming that the specific heat of the solution is 4.18 J/g. °C, calculate …
Solved Calculate the mole fraction of KBr (molar mass 119.00
Question: Calculate the mole fraction of KBr (molar mass 119.00 g/mol) in a solution made by dissolving 0.30 g KBr in 0.400 L of H20 (d = 1.00 g/mL; molar mass 18.02 g/mol). Click the answer you think is right. 1.14 x 10-4 2.52 x 10-3 0.75 -3 6.30 x 10
What is the molar mass of KBr? | Homework.Study.com
The molar mass of KBr is 119.00 g/mole. To determine the molar mass of KBr we need the molar masses of potassium (K)
What mass of KBr (molar mass 119 g/mol) is required to make 250 …
So, moles of KBr = molarity * Volume = 0.4 * 0.25 = 0.1 moles. Since molar mass of KBr is 119g/mol, you multiply the number of moles by the molar mass to get the mass. So, mass of KBr = moles * molar mass = 0.1 * 119 = 11.9 grams. That is the mass of KBr required to make a 0.400M KBr solution . Learn more about Molarity and Mass Calculation here:
Solved Determine the mass of potassium in 35.5 g KBr. (molar
Determine the mass of potassium in 35.5 g KBr. (molar mass K is 39.10 g/mol and molar mass Br is 79.90 g/mol) a) 17.4 g
Solved Calculate the molar mass of each compound. Keep at
Calculate the molar mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. KBr; g/mol g/mol Na S Calculate the molar mass of each compound. g/mol CH g/mol C,H,O, For the each element, convert the given mole amount to grams.
What quantity in moles of KBr is in 67.0 grams of KBr? - Brainly.com
2023年9月17日 · The molar mass of KBr (potassium bromide). KBr consists of one potassium (K) atom and one bromine (Br) atom. The molar mass of potassium (K) is approximately 39.10 g/mo l, and the molar mass of bromine (Br) is approximately 79.90 g/mol.
Solved What is the molarity of a 5.00 x 102 mL solution - Chegg
What is the molarity of a 5.00 x 102 mL solution containing 21.1 g of potassium bromide (KBr)? The molar mass of KBr is 119.0 g/mol. Click the answer you think is right. 3.55 x 10M 8.87 x 102 M 0.355 M 42.2 M Do you know the answer? I know it Think so No idea
Solved A student found an experimental molar mass of 68.04 g
Question: A student found an experimental molar mass of 68.04 g for KBr by measuring freezing point depression. Calculate the van't Hoff factor and find the percent dissociation of the KBr. Show transcribed image text
Solved QUESTION 3 Pottasium bromide (KBr) is an ionic - Chegg
When it dissolves, one Ca(NO3)2 breaks into one equilavent of Cat2 cation in solution and two equivalents of the NO3-7 anion. The Molar Mass of Ca(NO3)2 is 164.09 g/mol. Therefore, what will be the Molarity of the Cat2 cation ? (report to three sig figs) 1 points Save Answer QUESTION 7 An non-ionic solute has a Molar Mass of 100 g/mol.