O ácido tartárico é encontrado em muitas frutas inclusive em uvas. Ele é em parte responsável pela característica seca de certos vinhos. Calcule o pH e a concentração do íon tartarato (C4H4O62-) para uma solução de 0,250 mol/L de ácido tartárico, para a qual as constantes de dissociação ácida (H2C4H4O6) são: Ka1 = 1,0x10-3 e Ka2 = 4,6x10-5. Explique quaisquer aproximações ou suposições que você tenha a fazer em seu cálculo.

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

the answer is c

tell me if wrong

answer carbon and three oxygen atoms;