You have 1M KH2PO4, NaCl (FW 58.44), 906mM Na2HPO4, and ddH2O. Common practice in many labs is to create a 10X PBS solution that they can dilute further when needed. How much of each component would you need to create 500 mL of 10X PBS solution (10.5 mM KH2PO4, 1.552 M NaCl, 29.7 mM Na2HPO4)?

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