Underlined is what I think it is.

The dilution of a buffer solution with a small amount of waterwill lower, raise, or notchange the pH significantly, or change the [A]/[HA] ratio ?(pick 1)

Which of the following salts are only slightly soluble in water?(can be more than 1)

NiCO3 Zn(OH)2 K3PO4 CuSO4 CaBr2 Ca3(PO4)2

In which of the following will BaSO4 be the most soluble?
pure water, 0.1 MH2SO4, 0.1 M BaCl2, 0.1 M NaHSO4, 0.1 M Na2SO4

In which of the following will CaCO3 be the most soluble?
pure water, 0.1 M Na2CO3, 0.1 M NaCl, 0.1 M KOH, 0.1 M HNO3

Question

Underlined is what I think it is.

The dilution of a buffer solution with a small amount of waterwill lower, raise, or notchange the pH significantly, or change the [A]/[HA] ratio ?(pick 1)

Which of the following salts are only slightly soluble in water?(can be more than 1)

NiCO3 Zn(OH)2 K3PO4 CuSO4 CaBr2 Ca3(PO4)2

In which of the following will BaSO4 be the most soluble?
pure water, 0.1 MH2SO4, 0.1 M BaCl2, 0.1 M NaHSO4, 0.1 M Na2SO4

In which of the following will CaCO3 be the most soluble?
pure water, 0.1 M Na2CO3, 0.1 M NaCl, 0.1 M KOH, 0.1 M HNO3

(a) 8.94 g of NaCl dissolved in 55.5 g of H₂O	%
(b) 3.52 g of LiBr dissolved in 38.6 g of H₂O	%
(c) 14.4 g of KNO₃ dissolved in 260 g of H₂O	%
(d) 2.6Ã10^-3 g of NaOH dissolved in 3.8 g of H₂O	%

(a) 4.95 L of a 2.44 M HCl solution	grams of HCl
(b) 38.0 mL of a 12.5 M HNO₃ solution	grams of HNO₃
(c) 50.7 mL of a 10.4 M AgNO₃ solution	grams of AgNO₃
(d) 1.77 L of a 6.3Ã10^-3 M Na₂SO₄ solution	grams of Na₂SO₄

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