Assume 1 tsp is approximately can hold 5 mL liquid.
Given the dose of medicine = 1.5 tsp
Converting 1.5 tsp to mL:
= 7.5 mL
Given the specific gravity of the medicine = 1.23
That means density of the medicine with respect to water will be 1.23
As the density of water is 1 g/mL
We can take density of the medicine to be 1.23 g/mL
Calculating the mass of medicine in grams:
9.225 g medicine is present in one dose.
Answer:
Mass of NaBr produced = 23.67 g
Explanation:
Given data:
Mass of AgBr = 42.7 g
Mass of NaBr produced = ?
Solution:
Chemical equation:
2Na₂S₂O₃ + AgBr → NaBr + Na₃(Ag(S₂O₃)₂
Number of moles of AgBr:
Number of moles = mass/molar mass
Number of moles = 42.7 g/ 187.7 g/mol
Number of moles = 0.23 mol
now we will compare the moles of AgBr with NaBr.
AgBr : NaBr
1 : 1
0.23 : 0.23
Mass of NaBr:
Mass = number of moles × molar mass
Mass = 0.23 mol × 102.89 g/mol
Mass = 23.67 g
In a chemical change, a new substance is made, like when you burn a candle. In a physical change, no new substance is made, like when water turns to ice.
Source: https://www.generationgenius.com/learn-physical-and-chemical-changes/ (Found on Google :3 )
<span>technetium -- Tc -- element 43prometheum -- Pm -- element 61{polonium -- Po ---- element 87{radium -- Ra -- element 88}{actinium --Ac -- element 89}{protactinium -- Pa -- element 91}neptunium -- Np -- element 93plutonium --Pu -- element 94americium -- Am -- element 95curium -- Cm -- element 96berkelium-- Bk -- element 97californium -- Cf -- element 98einsteinium -- Es -- element 99fermium -- Fm -- element 100mendelevium -- Mv -- element 101nobelium -- No --element 102lawrencium -- Lr -- element 103 (originally the symbol for this element was Lw)rutherfordium -- Rf -- element 104dubnium -- Db -- element 105seaborgium -- Sg -- element 106bohrium -- Bh -- element 107hassium -- Hs --element 108meitnerium -- Mt -- element 109darmstadtium -- Ds -- element 110roentgenium -- Rg -- element 111copernicium -- Cn -- element 112flerovium --Fl -- element 114livermorium -- Lv -- element 116These are the "English names" rather than the "earth names".The elements in braces {} do not necessarily count as "alien" because they are present on Earth in small quantities.There have been recent claims for the preparation of elements 113, 117, and 118,but so far they have not been endorsed or named by IUPAC.</span>
