POWER OF ATTORNEY

(For Executing Form ID and Forms 3, 4 and 5)

Know all by these presents, that the undersigned hereby constitutes and appoints each of Mark

Fitzgerald, Mark Bass and Joan Moses of Wilson Sonsini, Goodrich & Rosati, P.C., and Stacey

Giamalis, Thomas Kramer and Kevin Caimi of IonQ, Inc. (the “Company”), signing individually,

the undersigned’s true and lawful attorneys-in fact and agents to:

(1)

Prepare, execute in the undersigned’s name and on the undersigned’s behalf, and submit to the

Securities and Exchange Commission (the “SEC”) a Form ID, Uniform Application for Access

Codes to File on EDGAR, including amendments thereto, and any other documents necessary or

appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with

the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended

(the “Exchange Act”), or any rule or regulation thereunder, if required;

(2)

Prepare, execute in the undersigned’s name and on the undersigned’s behalf, and submit to the

SEC Form ID and Forms 3, 4 and 5 (including amendments thereto and joint filing agreements in

connection therewith) in accordance with Section 16(a) of the Exchange Act and the rules

thereunder in the undersigned’s capacity as an officer, director or beneficial owner of more than

10% of a registered class of securities of the Company;

(3)

Do and perform any and all acts for and on behalf of the undersigned that may be necessary or

desirable to prepare and execute any such Form ID and Forms 3, 4 or 5 (including amendments

thereto and joint filing agreements in connection therewith) and file such forms with the SEC and

any stock exchange, self-regulatory association or any similar authority; and

(4)

Take any other action of any type whatsoever in connection with the foregoing that, in the

Opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required of

the undersigned, it being understood that the documents executed by the attorney-in-fact on behalf

of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such

terms and conditions as the attorney-in-fact may approve in the attorney-in-fact’s discretion.

The undersigned hereby grants to each such attorney in fact full power and authority to do

and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in

the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as

the undersigned might or could do if personally present, with full power of substitution or

revocation, hereby ratifying and confirming all that such attorney in fact, or such attorney in fact’s

substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney

and the rights and powers herein granted. The undersigned acknowledges that the foregoing

attorneys-in-fact, and their substitutes, in serving in such capacity at the request of the undersigned,

are not assuming (nor is the Company assuming) any of the undersigned’s responsibilities to

comply with Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the earliest to occur of (a)

the undersigned is no longer required to file Form ID or Forms 3, 4 and 5 with respect to the

undersigned’s holdings of and transactions in securities issued by the Company, (b) revocation by

the undersigned in a signed writing delivered to the Company and the foregoing attorneys-in fact

or (c) as to any attorney-in-fact individually, until such attorney-in-fact is no longer employed by

the Company or Wilson Sonsini Goodrich & Rosati, P.C., as applicable.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed

as of the date written below.

Date: April 18, 2024

Signature: /s/ Robert Cardillo

Print Name: Robert Cardillo

4875-9616-8120.1

Cardillo Robert T. 4