Thursday

October 23, 2014

October 23, 2014

Posted by **Hannah** on Tuesday, October 11, 2011 at 10:02pm.

Would you do (0.410)(18.75) / 0.376?

Or (0.410)(0.376) / 18.75

- Chemistry -
**DrBob222**, Tuesday, October 11, 2011 at 11:04pmNeither.

(0.376)(18.75)(2)/(0.410)= ?

Here is how you do it.

Write and balance the equation.

2HNO3 + Ba(OH)2 ==> 2H2O + Ba(NO3)2

moles Ba(OH)2 initially = M x L = 0.00705 mols (or 18.75 x 0.376 = 7.05 millimoles).

Now use the coefficients in the balanced equation to convert moles Ba(OH)2 to moles HNO3. That will be

moles Ba(OH)2 x (2 moles HNO3/1 mole Ba(OH)2) = 7.05 mmoles x 2 = 14.10 millimoles HNO3.

Now convert to L or mL HNO3.

M = moles/L or M = millimoles/mL.

0.410 = 14.10/mL Solve for mL.

**Answer this Question**

**Related Questions**

math help - if a 150 lb person can burn 410 calories /hour while bicycling 12 mi...

Calculus - The Market value of a house is predicted to increase at an annual ...

Trigonometry - an airplane over the pacific sights an atoll at a 11 degrees ...

Chem - a gas has a volume of 410 mL at 27 degrees c and 740 mm Hg. what volume ...

Chem - a gas has a volume of 410 mL at 27 degrees c and 740 mm Hg. what volume ...

Math - having trouble figuring out this problem. During the first 4 wks of ...

chemistry - If 0.45 mol of neon gas occupies a volume of 789 mL at a certain ...

chemistry - given: V1=410 ml, T1=27 degrees celsius, P1= 740mm. what is the V2 ...

Math - If a person weighing 120 lbs burns 410 calories per hour while bicycling ...

chem - A balloon occupies a volume of 352 cm3 at 615 Torr and 19 oC. If the ...