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प्रश्न
Solve the following problem:
Write the following number in ordinary decimal form:
43.71 × 10−4
उत्तर
43.71 × 10−4 = 0.004371
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संबंधित प्रश्न
Calculate the amount of carbon dioxide that could be produced when 1 mole of carbon is burnt in 16 g of dioxygen.
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\[\ce{N2 (g) + 3H2 (g) → 2NH3 (g)}\]
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(iii) If yes, which one and what would be its mass?
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Write the following number in ordinary decimal form:
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Write the following number in ordinary decimal form:
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Write the following number in ordinary decimal form:
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Perform the following calculation. Round off your answer to two digits.
`1/(3.40xx10^24)`
Solve the following problem:
Perform the following calculation. Round off your answer to three digits.
(8.39 × 107) × (4.53 × 109)
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Perform the following calculation. Round off your answer to three digits.
`((9.28xx10^9)(9.9xx10^-7))/((511)(2.98xx10^-6))`
Solve the following problem:
Your laboratory partner was given the task of measuring the length of a box (approx 5 in) as accurately as possible, using a metre stick graduated in milimeters. He supplied you with the following measurements:
12.65 cm, 12.6 cm, 12.65 cm, 12.655 cm, 126.55 mm, 12 cm.
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Solve the following problem:
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12.65 cm, 12.6 cm, 12.65 cm, 12.655 cm, 126.55 mm, 12 cm.
Give your reason for rejecting each of the others.
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\[\ce{H2SO4 + 2NaOH -> Na2SO4 + 2H2O}\]
When 1 L of 0.1 M sulphuric acid solution is allowed to react with 1 L of 0.1 M sodium hydroxide solution, the amount of sodium sulphate formed and its molarity in the solution obtained is:
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(ii) \[\ce{0.5 mol of KCl in 200 mL of solution}\]
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| (i) Molarity | (a) g mL–1 |
| (ii) Mole fraction | (b) mol |
| (iii) Mole | (c) Pascal |
| (iv) Molality | (d) Unitless |
| (v) Pressure | (e) mol L–1 |
| (vi) Luminous intensity | (f) Candela |
| (vii) Density | (g) mol kg–1 |
| (viii) Mass | (h) Nm–1 |
| (i) kg |
With increase of temperature, which of these changes?
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