14. Urine is considered normal when the pH range is 5-8.0. Test results show [H+
ID: 544591 • Letter: 1
Question
14. Urine is considered normal when the pH range is 5-8.0. Test results show [H+] = 1×10-9 M for the urine of a patient. How does the pH of this patient's urine compare to the normal range? (A) well below normal(B) below normal (C) normal (D) above normal The chemical formula of sodium tungstate is Na2WO4. What is the formula of calcium tungstate? 15. (B) Ca(WO4)2 (D) Ca,(WO4)2 (A) CaWO4 (C) Ca2WO4 16. What is the systematic name for Fe2(COs)? (A) iron carbonate (B) di-iron tricarbonate (C) iron (II) carbonate (D) iron (II) carbonate 17. When pure liquid water is rapidly boiling, what are the bubbles made of? (A) H20() (c) H(g) and 028) (D) CO.(g) (B) airExplanation / Answer
14.
PH = -log[H+] = -log[1*10-9] = 9
so the PH of the patient urine is above normal.
15.
formula of calcium tungstate is
CaWO4
16.
name of the compound is "Iron (III) carbonate"
17.
when pure water is boiled,H2 & O2 gases are evolved
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