4

# You design a coulometric titration to determine the amountof arsenic in your tea. You do some sample prep so that any arsenicpresent is in the form of HAsO32-. This...

## Question

###### You design a coulometric titration to determine the amountof arsenic in your tea. You do some sample prep so that any arsenicpresent is in the form of HAsO32-. This ionreacts with iodine in the following reaction.HAsO32- + I2 +2HCO3- -> HAsO42-+2I- + 2CO + H2OAfter adding 10g of I- ions in the form of KI, ittakes 11 min and 32 sec at 127.6 mA for all the arsenic to be usedup. How many grams of HAsO32- was in yourtea?

You design a coulometric titration to determine the amount of arsenic in your tea. You do some sample prep so that any arsenic present is in the form of HAsO32-. This ion reacts with iodine in the following reaction. HAsO32- + I2 + 2HCO3- -> HAsO42-+ 2I- + 2CO + H2O After adding 10g of I- ions in the form of KI, it takes 11 min and 32 sec at 127.6 mA for all the arsenic to be used up. How many grams of HAsO32- was in your tea?

#### Similar Solved Questions

##### Ideal Number of ChildrenIdeal NNumber of Children Frequency27 527 265 61 10PrintDoneMore
Ideal Number of Children Ideal NNumber of Children Frequency 27 527 265 61 10 Print Done More...
##### 56 _ How many H,O are there in the balanced equation? NiS: NO; - H+ Ni + S +NO Hzoone two three four five
56 _ How many H,O are there in the balanced equation? NiS: NO; - H+ Ni + S +NO Hzo one two three four five...
##### Find a polynomial function of degree 3 with real coefficients that has the given zeros_-3,4, -5The polynomial function is Ix)-x8+[x2-17x - 60.
Find a polynomial function of degree 3 with real coefficients that has the given zeros_ -3,4, -5 The polynomial function is Ix)-x8+[x2-17x - 60....
##### 3.19. Solve the following Cauchy-Euler differential equations: a. ry" xy' + 4y = 0,x > 0. bry" -xy+y=x,x>0.y(I) =1,Y() =4
3.19. Solve the following Cauchy-Euler differential equations: a. ry" xy' + 4y = 0,x > 0. bry" -xy+y=x,x>0.y(I) =1,Y() =4...
##### Point) The Fourier sine series of the function2X f(x) =0 <* < 3/2 3/2 < * < 3is given byf(x) 2 sin(" 5 *)where
point) The Fourier sine series of the function 2X f(x) = 0 <* < 3/2 3/2 < * < 3 is given by f(x) 2 sin(" 5 *) where...
##### The graph = of the function f(*) (ISx ? 28X - 89) (2* 335) has slanted asymproteTrueFalse
The graph = of the function f(*) (ISx ? 28X - 89) (2* 335) has slanted asymprote True False...
##### Question2ptsThe Idca that dinosaurs could haveheen killed during the bibllcal (lood and r pidly fossillzed by an act Bod an example 0/ thc princlple 01CaytrochismUniformntarianismeccction)lumCausalQuestion 82ptsareaswrith heavy malariallond the sickle cell allele Is found at Hich frequcncics - Ccn thouch itS Iethal = thehomazygous recessivc comblnation ptcikmlaranntrodEgu mutlionheteroz goleshavehigher reproductivc SUccesscultutlon clicesttor Martia5rAnth sc ecellnneniEena flowcontinuouelyreint
Question 2pts The Idca that dinosaurs could haveheen killed during the bibllcal (lood and r pidly fossillzed by an act Bod an example 0/ thc princlple 01 Caytrochism Uniformntarianism eccction)lum Causal Question 8 2pts areaswrith heavy malariallond the sickle cell allele Is found at Hich frequcnci...
##### If $x^{18}=y^{21}=z^{28}$, prove that $3,3 log _{y} x, 3 log _{z} y, 7 log _{x} z$ form an A.P.
If $x^{18}=y^{21}=z^{28}$, prove that $3,3 log _{y} x, 3 log _{z} y, 7 log _{x} z$ form an A.P....
##### In the circuit above; the capacitor is initially uncharged. The current through the battery immediately after the switch S is closed is ?What is the resistance of resistor R?1 n(5/4) n(17/8) n4 n
In the circuit above; the capacitor is initially uncharged. The current through the battery immediately after the switch S is closed is ? What is the resistance of resistor R? 1 n (5/4) n (17/8) n 4 n...
##### Uce Ioo Pi6 : 70Confider JS mize Ycc-sn Uw clooizh_- Wq 24 Spced neszhl "aao (T slaadard 4o4"& ULSCofty 6f 3,636 Jo 8y nG mLC bec Crukca Reyno AsSumes num 0oo_lac Lc JC Jaces. Calcalak LOG.Qox 4 Jhc the L1a %ikakc_P3lgti Lon Ukon knhicc 4LAY
Uce Ioo Pi 6 : 70 Confider JS mize Ycc-sn Uw clooizh_- Wq 24 Spced neszhl "aao (T slaadard 4o4"& ULSCofty 6f 3,636 Jo 8y nG mLC bec Crukca Reyno AsSumes num 0oo_lac Lc JC Jaces. Calcalak LOG.Qox 4 Jhc the L1a %ikakc_P3lgti Lon Ukon knhicc 4LAY...
##### Each of 2 cabinets identical in appearance has 2 drawers. Cabinet $A$ contains a silver coin in each drawer, and cabinet $B$ contains a silver coin in one of its drawers and a gold coin in the other. A cabinet is randomly selected, one of its drawers is opened, and a silver coin is found. What is the probability that there is a silver coin in the other drawer?
Each of 2 cabinets identical in appearance has 2 drawers. Cabinet $A$ contains a silver coin in each drawer, and cabinet $B$ contains a silver coin in one of its drawers and a gold coin in the other. A cabinet is randomly selected, one of its drawers is opened, and a silver coin is found. What is th...