Please help with this chemistry question. Is it greater and greater? I've tried A,B and D and they are all wrong.
In an aqueous solution that is acidic, [H3O+] is ________ than 1.0 x 10-7 and ________ than [OH-].
a) greater;less
b) less; greater
c) greater; greater
d) less;less
e) none of the above
Please help with this chemistry question. Is it greater and greater? I've tried A,B and D...
1. Which compound has the largest value of Ka in aqueous solution? A. NaCl B. HNO3 C. H3PO4 D. KOH E. NH3 2. If the concentration of OH- in an aqueous solution at 25 °C is 1.4 × 10-7 M, the concentration of H3O+ is __________. 3. In an aqueous solution that is basic, [H3O+] is ____than 1.0 × 10‐7 and [OH‐] _______than 1.0 × 10‐7 . (Decide grater or less) I have tried to do these questions on my...
Please help. No need for deep explanation just write
the correct answer
QUESTION 8 Which of the following statements is true? Dissolving NH4Cl in pure water produces a basic pH Dissolving KCl in pure water produces a basic pH Dissolving KCl in pure water produces an acidic pH Dissolving NH4Cl in pure water produces an acidic pH QUESTION 9 What is the pH of a 1.0*10 MHI solution? HI is a strong acid. (Hint: the pH is not 9.0) pH...
I've already tried A, so A and C are wrong. Can someone please
explain what's going on here?
Incorrect Question 5 0/1 pts Which alkyl-halide will produce a tertiary (39) carbocation under Sn1 conditions? None All of them
Incorrect Question 21 0/4 pts In an aqueous solution that is basic, (H30*) is_ than(OH). than 1.0 x 10? and O less; greater greater;less greater, greater O less: less . None of these
Help please and show all work!
Problem Set 14 CHEM 1252 November 4, 2019 4. At 25 °C, K= 1.0 x 10-14, while at 0 °C, K= 1.2 x 10-15 (a) Explain whether water becomes a stronger or weaker acid as temperature decreases. (b) Write the equilibrium constant expression for the ionization of water to hydronium ion and hydroxide and calculate the concentrations of [H3O*] and [OH in pure water at 0 °C. (c) An aqueous solution at 25 °C...
7. Choose the best answer for an aqueous solution labeled "0.10 M sodium hydroxide," A) the pH is greater than 7 B) the pH is less than 7 C) the pH = 1 D) the pH = 7 E) the pH = 13 8. Which one of the following salts gives an acidic aqueous solution? A) LINO3 B) CsBr C) Col2 D) Mg(SO3)2 E) NaF 9. Which one of the following salts gives a basic aqueous solution? A) Fe(NO3)3 B)...
Q 21: Which of the following is the strongest acid? A) HF (K, for HF is 7.2 x 10-4) B) HCN (K for HCN is 4.9 x 10-10) C) HCNO (K for HCNO is 2 x 10-4) D) H3B03 (K, for H3B03 is 5.4 x 10-10) OA B с D Question 22 (2.439024 points) We were unable to transcribe this imageQuestion 23 (2.439024 points) Q 23: Which of the following is the weakest acid? A) HF (K, for HF is...
can
you please explain why the solutions say it is acidic/ basic? i
dont understand the explanation one sheet. thank you.
4) What is the [H3O+] for a solution with a [OH-] of 2.73 X 102 M? Is the solution acidic, basic or neutral? *kw is constant giv The solution is basic because (OH) of 2.72 X 102 M is greater than 1.00 X 10' M. Kw = [H3O+][OH-] = 1.00 x 10-14 [H30+] = TOH-1 [OH-] = 2.72 X...
Please help me with this
question. I've been looking at chemistry powerpoint but there
wasn't much helpful information.
Answers I've tried and have
been wrong:
a) 6.54, 6.45, -6.45
b)-1.91, -.9
Please help, I cannot figure this one out.
A convex lens (f = 13.9.cm) is placed 10.0 cm in front of a plane mirror. A matchstick is placed x = 29.3.cm in front of the lens, as shown in the figure. Convex Plane mirror lens -10.0 cm (a) If you look through the lens toward the mirror, where will you see the image of the matchstick relative...