Calculate the mass of one molecule of\[{{H}_{2}}O\].

• A. \[29.88\times {{10}^{23}}g\]
• B.        \[2.988\times {{10}^{23}}g\]
• C. \[0.2988\times {{10}^{23}}g\]
• D.        \[2.988\times {{10}^{-23}}g\]