What are the concentrations of HSO4−, SO42−, and H+ in a 0.31 M KHSO4 solution? (Hint: H2SO4 is a strong acid; Ka for HSO4− = 1.3 × 10−2.)   [HSO4−] =       M   [SO42−] =       M   [H+] =         M

Nitrous acid HNO2 has Ka = 4.6 x 10^-4. Which of the following statements are true? (You can choose any combination of statements).    NO2- is a stronger base than OH- A solution of 0.10 M NaNO2 would have pH > 7 0.10 M HNO2 has a higher pH than 0.10 M HNO3 A solution of 0.10 M HNO2 would be a strong electrolyte

Be sure to answer all parts. Enter your answer in scientific notation. The concentration of hydroxide ions in the antacid, mnilk of magnesia, is 4.9 x 10 M. Calculate the concentration of hydronium ions at 25°C. [H,o)- x 10

1. (1 point) The [H+] of coffee is about 1 x 10. Its pH is 2. (1 point) The [OH-] of baking soda is about 1 x 10. Its pH is 9. The [H+] is 3. (4 points) Balance these equations by putting the number coefficients to the left of each product or reactant. If no number is needed (coefficient = 1), then leave that space blank. Al + O2 → Al2O3 а. NażCO3 + HCI → NaCl + CO2 + H20 C3H8 + O2 → CO2 + H2O с. d. CSH12 + O2 → CO2 + H2O 4. (1 point) How much does 2 moles of NaBr weigh? on's irtday pa There West oute, Kelvins (1 point) Caffeine has a molecular weight of 194 g/mole. If I drink a Venti coffee from Starbucks every day, I have consumed 156g of caffeine in a year! How many moles of caffeine have I consumed on my $967.25 of coffee in a year? 5. to hand-boil an esg in a microwave. The egg was 276K and I ATM. Imicrowaved it until the internal