0
357
Sigurd Nolan
Wiki User
∙ 12y ago357
Wiki User
∙ 15y agoEver heard of dimensional analysis? If not, Google it. If so, What you know: 1mol potassium carbonate = 1molK2CO3 = 138.2055gK2CO3 So: 3molK2CO3 x (138.2055gK2CO3/1molK2CO3) = 414.617g potassium carbonate I'm not sure how many significant figures the 3 has (I don't know if it was 3., or 3.0 or 3.00, etc.), but if it was just 3, then your answer would be just 400g potassium carbonate.
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∙ 13y agoFor each molecule of KBr there is only 1 K atom (you can tell because there are no numbers in the molecule formula).
Seeing as "moles" is a measure of the number of molecules or atoms, that means each mole of KBr includes 1 mole of K.
Therefore 3.3 moles of KBr equals 3.3 moles of K (or K+ to be more accurate).
Wiki User
∙ 13y ago1.70 (mol KBr) * [39.10 (g/mol K+) + 79.90 (g/mol Br-)] (g/mol KBr) = 1.70*119.00 = 202.30 = 202 g KBr
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∙ 13y agoMolarity = moles of solute/Liters of solution
3 M KBr = moles KBr/1 liter
= 3 moles KBr (119 grams/1 mole KBr)
= 357 grams needed
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How many moles of KBr will be produced from 14.17 moles of BaBr2?
14.17 mol BaBr2 has 2*14.17 mol Br in it, so 28.34 mol KBr can be produced (also 28.34 mol K is needed)
How many moles of KBr are present in 190mL of a 0.265M solution?
The answer is 0,0509 mole.
How many moles of KBR are there in 100 mL if a 0.75 M Solution?
There would be 0.75 moles in 1 liter of solution. You have 100 mL which is in fact 0.1 liters. so you would have 0.1 of 0.75 moles. 0.1 x 0.75 = 0.075 moles.
Is KBr a binary compound?
yes it is because kbr is just one word not 2.
What is the mole of the concentration of KBr in a solution prepared by dissolving 2.21g of KBr in 897g of water?
The answer is 0,0207 mol.
How many moles of KBr will be produced from 14.17 moles of BaBr2?
14.17 mol BaBr2 has 2*14.17 mol Br in it, so 28.34 mol KBr can be produced (also 28.34 mol K is needed)
How many moles of KBr will be produced from 4.79 moles of BaBr2?
14.17 mol BaBr2 has 2*14.17 mol Br in it, so 28.34 mol KBr can be produced (also 28.34 mol K is needed)
How many moles are contained in 22.23 g KBr-?
0.1868 moles
How many moles are contained in 22.23 g KBr?
0.1868 moles
How many moles of kbr are present in 25ml of a 1.5 M solution?
Molarity = moles of solute/Liters of solution ( 25 ml = 0.025 Liters ) 1.5 M KBr = moles KBr/0.025 Liters = 0.038 moles potassium bromide ------------------
How many moles of potassium bromide can be produced from the reaction of 2.92 moles of potassium with 1.78 moles of bromine gas?
First write a balanced chemical equation: 2K + Br2 ---> 2KBR Find the limiting reactant by using the moles of each element and determining which one gives you the smallest number of moles of potassium bromide. 2.92 mol K (2 mol KBr/2 mol K)= 2.92 mol KBr 1.78 mol Br2 (2 mol KBR/1 mol Br2)=3.56 mol KBr potassium is your limiting reactant so the max. number of moles of KBr that can be produced is 2.92 mol of KBr
How many moles of KBr are present in 190mL of a 0.265M solution?
The answer is 0,0509 mole.
How many moles of KBr will be produced from 7 moles of BaBr2?
None, unless there is metallic potassium in the reaction mixture. Assuming excess potassium metal is present then 14 moles of KBr can be produced. 7BaBr2 + excess potassium -----> 14KBr + 7 Ba
How many moles of KBr are present in 110mL of a 0.290M solution?
0.29M = 0.29 moles in 1000 ml so 0.29 x 110/1000 = 0.0319 moles
How many moles are contained in 245g of potassium bromide?
Potassium bromide is KBr, the atomic mass of this compound is ca. 119.1. no.moles = mass/relitive molecular mass, so in this case that's 245/119.1 = 2.057 moles of KBr.
How many moles of KBR are there in 100 mL if a 0.75 M Solution?
There would be 0.75 moles in 1 liter of solution. You have 100 mL which is in fact 0.1 liters. so you would have 0.1 of 0.75 moles. 0.1 x 0.75 = 0.075 moles.
What chemicals can form brominea kmno4 b kbr or c h2so4 and d naoh?
Kbr
