Ml of 7.4 M HCI has been taken for preparation of 500 ml of solution HCI, calculate the molar concentration of the received solution

Ml of 1.2 M NaOH and 600 ml of 1.8 M NaOH are mixed; determine the molar concentration of the received solution.

Calculate the mass of iodine in 0.1923 g of chemically pure AgI.

Determine the titer of 0.12 n. of the sulfuric acid solution.

Calculate the titer of 0.1101 M solution of the hydrochloric acid.

Calculate the titer of 0.1420 n. of the sulfuric acid solution.

Calculate the titer of 0.21 M of the sodium hydroxide solution.

Determine the titer of 0.1205 n. of the sulfuric acid solution.

A. 0.00590

62. Determine the titer of 1 M of the milk acid (CH₃CHOHCOOH) solution.

1. 9·10^-2

63. Calculate the molar concentration of the acetic acid (С₂Н₄О₂) with the titer 0.000016 g/ml.

A. 0.0002667

1. 0.008400

65. Calculate the titer of 1 M of the wine acid (СО₂Н (СНОН) ₂СО₂Н) solution.

1. 0.1500

66. Determine the normal concentration of H₂SO₄ solution which titer is 0.004278 g/ml.

1. 0.0873

67. Determine the molar concentration of 35 % H₂SO₄ (density 1.26).

1. 4.5

68. Calculate the titer of 0.02 M of acetone ((CH₃) ₂CO) solution.

1. 1,16·10^-3

1. 0.006958

70. Determine the normal concentration of the sulfuric acid if its titer is equal to 0.00590 g/ml.

1. 0.1204

1. 0.004019

1. 0.005880

73. Calculate the titer of 0.12 n. of sodium tetra borate (Na₂B₄O₇) solution.

1. 0.01207

74. Determine the molar concentration of nitric acid which titer is equal to 0.006300 g/ml?

1. 0.1

1. 0.1039

76. Calculate the mass of chromium in 0.5844 g of chemically pure BaCrO₄.

1. 0.1199

77. What is the number (mol) of formaldehyde (НСНО) contained in 5 litres 0.2 M solutions?

1. 1.0

78. What is the number (mol) of ascorbic acid (С₆Н₈О₆) contained in 500 ml of 0.02 M solution?

1. 0.010

79. How many grams of benzaldehyde (С₆Н₅СНО) are necessary for preparation 200 ml of 0.01 M solution?

1. 0.212

80. How many grams of furfural (С₄Н₃ОСНО) are necessary for preparation of 0.1 litre 0.002 M solution?

1. 0.0192

81. How many grams of the waterless sodium carbonate are necessary to receive 2 litres 0.1 n. solution?

1. 10.6

82. How many grams of potassium chloride are necessary to dissolve in 100 g of water to receive 5 % solution?

1. 5.26

83. How many grams of sodium sulfate are necessary to dissolve in 400 g of water to receive 8 % solution?

1. 34.78

84. How many grams of water should be added to 40 g of KBr to receive 4 % solution?

1. 960

85. How many grams of water should be added to 5.7 g of the boric acid to receive 3 % solution?

1. 184.3

86. How many grams of the sulfuric acid are in 1 litre of 0.1 n. solutions?

1. 4.9

87. How many grams of soda are in 1 litre of 0.5 n. solutions?

1. 26.5

88. How many grams of the phosphoric acid are in 1 litre of 0.3 n. solutions?

1. 9.8

89. How many grams of magnesium sulfate are in 1 litre of 0.2 n. solutions?

1. 12

90. How many grams of aluminium chloride are in 1 litre of 0.3 n. solutions?

1. 13.35

91. How many grams of aluminium sulfate are in 1 litre of 0.1 M solutions?

1. 34.2

92. How many grams of aluminium sulfate are in 1 litre of 1.8 n. solutions?

1. 102.6

93. How many grams of Na₂CO₃·10H₂O are necessary to receive 3 litres of 0.2 n. solution?

1. 85.8

94. How many grams of water should be added to 100 g of Na₂CO₃ ·10H₂O to receive 10 % salt solution?

1. 270.6

95. What the number (mol) of NaCN should be dissolved in 100 g of water to receive 5 % solution?

1. 0.1073

96. What the number of water (mol) should be added to 50 g of H₂SO₄ to receive 10 % solution?

1. 25

1. 1.56

98. How many ml of 0.1 n. of phosphoric acid can be prepared from 80 ml of 0.75 n. solution of the same acid?

1. 600

99. Up to what volume (liters) is it necessary to dilute 2.4 litres of 1.6 M HCl by water to receive 0.25 M solution?

1. 15.4

100. Up to what volume (litre) is it necessary to evaporate 3.5 litres of 0.04 M KOH to receive 0.1 M solution?

1. 1.4

101. What volume (ml) 0.5 n. of sulfuric acid is necessary to add to 1 litre of 0.11 n. solution of the same acid to receive 0.2 n. solutions?

1. 300

102. How many litres of 8 M КОН are necessary to add to 5 litres of 3.2 М КОН to receive 4 М solutions?

1. 1

103. How many ml of 2 М NaOH are necessary to add to 750 ml of water to receive 0.4 M solution NaOH?

1. 187.5

104. What volume of water (ml) should be added to 1 litre of 0.5300 M HCI to receive 0.5000 M solution?

1. 60

105. What volume (ml) of 38.32 % solution HCI (density 1.19) is necessary for preparation 1 litre of 0.1 M solution?

1. 8.0

106. What volume (ml) of 95.72% H₂SO₄ (density 1.84) is necessary for preparation 2.5 litres of 0.1 M H₂SO₄?

1. 14

1. 0.3

108. Up to what volume (ml) is it necessary to dilute 200 ml of 0.01 M solution to receive 0.005 M solution?

1. 400

109. How many ml of 1 M solution HCI is it necessary to prepare 1 litre of 0.1 M solution of HCI?

1. 100.0

110. Up to what volume (ml) is it necessary to dilute 10 ml of 0.5 M solution to receive 0.05 M solution?

1. 100.0

111. Up to what volume (ml) is it necessary to dilute100 ml 0.01 M solution of formaldehyde to receive 0.005 M solution of formaldehyde (НСНО)?

1. 200.0

112. How many ml of 2.0 M HCI is it necessary to add to 1.1 litres of 0.1880 M HCI to receive 0.2000 M solution?

1. 7.3

113. How many ml of water are necessary to be added to 1.2 litres of 0.24 M HCI to receive 0.20 M solution?

1. 240

114. Up to what volume (ml) is it necessary to dilute100 ml 0.2 M solution to receive 0.02 M solution?

1. 1000.0

115. 1.5 M solution of CaCI₂ has been diluted in 18 times, determine its molar concentration.

1. 0.083

116. 0.37 M solution of NaCI has been evaporated to 1/4 initial volume, calculate the molar concentration of the received solution.

1. 1.48

117. 0.05 M solution of AgNO₃ has been evaporated to 1/7 initial volume, determine the molar concentration of the received solution.

1. 0.35

118. 0.2 M solution of K₂SO₄ has been diluted in 17 times, determine the molar concentration of potassium cations?

A. 0.024

Дата добавления: 2017-01-13